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Wang H, Guo M, Lee S, Chua CH. Forecasting and change point test for nonlinear heteroscedastic time series based on support vector regression. PLoS One 2022; 17:e0278816. [PMID: 36584161 PMCID: PMC9803251 DOI: 10.1371/journal.pone.0278816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/25/2022] [Indexed: 12/31/2022] Open
Abstract
SVR-ARMA-GARCH models provide flexible model fitting and good predictive powers for nonlinear heteroscedastic time series datasets. In this study, we explore the change point detection problem in the SVR-ARMA-GARCH model using the residual-based CUSUM test. For this task, we propose an alternating recursive estimation (ARE) method to improve the estimation accuracy of residuals. Moreover, we suggest using a new testing method with a time-varying control limit that significantly improves the detection power of the CUSUM test. Our numerical analysis exhibits the merits of the proposed methods in SVR-ARMA-GARCH models. A real data example is also conducted using BDI data for illustration, which also confirms the validity of our methods.
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Affiliation(s)
- HsinKai Wang
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Meihui Guo
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Sangyeol Lee
- Department of Statistics, Seoul National University, Seoul, Korea
| | - Cheng-Han Chua
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan
- * E-mail:
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2
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Lee CY, Lin MH, Lin HY, Ting YT, Wang HK, Wang CL, Tsai MK, Chen CC, Lee CY. Survey of factors associated with the willingness toward living kidney donation. J Formos Med Assoc 2022; 121:2300-2307. [DOI: 10.1016/j.jfma.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 12/29/2022]
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Liu HT, Liu CA, Wang HK, Liu CS, Shen SH. Minimal invasive treatment for post-liver and renal transplant lymphatic leaks. Clin Transplant 2022; 36:e14691. [PMID: 35485283 DOI: 10.1111/ctr.14691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/13/2022] [Accepted: 04/23/2022] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Persistent lymphatic leakage from the surgical drain is a troubling complication occasionally encountered postoperatively. This study investigated lymphatic leaks after renal or liver transplantation, comparing the treatment efficacy of traditional catheter drainage vs. minimally invasive lymphatic interventions. We also discuss access and treatment targets considering the physiology of lymphatic flow. METHODS Between September 2018 and September 2020, 13 patients with lymphatic leakage were treated with minimally invasive lymphatic interventions; 11 had received a renal transplant, and two received a liver transplant. The control group included 10 patients with post-renal transplant lymphatic leakage treated with catheter drainage. The treatment efficacy of catheter drainage, lymphatic interventions, and different targets of embolization were compared. RESULTS The technical success rate for lymphatic intervention was 100%, and the clinical success rate was 92%, with an 82.9% percent reduction in drain volume on the first day after treatment. The duration to reach clinical success was 5.9 days with lymphatic intervention, and 33.9 days with conservative catheter drainage. CONCLUSION Lymphangiography and embolization are minimally invasive and efficient procedures for treating persistent lymphatic leaks after renal or liver transplantation. We suggest prompt diagnosis and embolization at upstream lymphatics to reduce the duration of drain retention, days of hospitalization and associated comorbidities. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hsien-Tzu Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Radiology, Shuang-Ho Hospital, Taiwan, New Taipei City, Taiwan.,National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chien-An Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Su Liu
- National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Transplantation Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shu-Huei Shen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,National Yang Ming Chiao Tung University, Taipei, Taiwan
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4
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Chang NW, Wang HK, Liu CS, Loong CC, Lai YC, Chiou HJ, Chou YH. First-Pass Arrival Interval of Ultrasound Contrast Medium in the Hepatic Artery and Portal Vein as a Marker for Assessment of Liver Transplant Recipients. Transplant Proc 2021; 53:2329-2334. [PMID: 34446308 DOI: 10.1016/j.transproceed.2021.07.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/22/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND This study measures the first-pass arrival times in the hepatic artery and portal vein of the transplanted liver using contrast-enhanced ultrasound (CEUS) and assess its correlation with graft performance in the early posttransplant period. METHODS This study evaluated 35 liver transplant recipients who underwent CEUS examination within 1 month of transplant surgery. CEUS under contrast-specific harmonic imaging mode were recorded for 60 seconds immediately after intravenous administration of microbubble ultrasound contrast medium (Sonazoid, GE Healthcare, Oslo, Norway). The recorded video clips were reviewed by 2 readers to determine the first-pass arrival times in the hepatic artery and portal vein, and the difference between the 2 was defined as the arterial-portal arrival interval (APAI). Laboratory data on the same date of CEUS examination were collected as indicators to correlate with APAI. RESULTS The intra- and inter-rater reliability for APAI measurement were excellent, with intraclass correlation coefficients > .95. The mean APAI was 4.5 ± 1.8 seconds (range, 2.0-10.5 seconds). The APAI was positively correlated with the serum total bilirubin level (r = 0.357, P = .035) and negatively correlated with the platelet count (r = -0.354, P = .037). At the 5 second cutoff point, a total serum bilirubin of >8 mg/dL was reported in 5 of 11 patients (45.4%) with APAI of >5 seconds and in only 3 of 24 patients (12.5%) with APAI of <5 seconds (P < .05). CONCLUSIONS The APAI is a quantitative marker that links the hemodynamics and the clinical status of the liver graft.
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Affiliation(s)
- Nai-Wen Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Chin-Su Liu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Che-Chuan Loong
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Medical Imaging and Radiological Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan; Department of Radiology, Yee Zen General Hospital, Taoyuan, Taiwan
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5
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Wang HK. Magnetic Resonance Imaging Fusion Transrectal Ultrasound-guided Biopsy for Diagnosis of Prostate Cancer. J Med Ultrasound 2021; 29:75-76. [PMID: 34377635 PMCID: PMC8330678 DOI: 10.4103/jmu.jmu_96_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- Hsin-Kai Wang
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Yangming Campus, Taipei, Taiwan
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Lai CC, Wang HK, Wang FN, Peng YC, Lin TP, Peng HH, Shen SH. Autosegmentation of Prostate Zones and Cancer Regions from Biparametric Magnetic Resonance Images by Using Deep-Learning-Based Neural Networks. Sensors (Basel) 2021; 21:s21082709. [PMID: 33921451 PMCID: PMC8070192 DOI: 10.3390/s21082709] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/01/2021] [Accepted: 04/09/2021] [Indexed: 12/21/2022]
Abstract
The accuracy in diagnosing prostate cancer (PCa) has increased with the development of multiparametric magnetic resonance imaging (mpMRI). Biparametric magnetic resonance imaging (bpMRI) was found to have a diagnostic accuracy comparable to mpMRI in detecting PCa. However, prostate MRI assessment relies on human experts and specialized training with considerable inter-reader variability. Deep learning may be a more robust approach for prostate MRI assessment. Here we present a method for autosegmenting the prostate zone and cancer region by using SegNet, a deep convolution neural network (DCNN) model. We used PROSTATEx dataset to train the model and combined different sequences into three channels of a single image. For each subject, all slices that contained the transition zone (TZ), peripheral zone (PZ), and PCa region were selected. The datasets were produced using different combinations of images, including T2-weighted (T2W) images, diffusion-weighted images (DWI) and apparent diffusion coefficient (ADC) images. Among these groups, the T2W + DWI + ADC images exhibited the best performance with a dice similarity coefficient of 90.45% for the TZ, 70.04% for the PZ, and 52.73% for the PCa region. Image sequence analysis with a DCNN model has the potential to assist PCa diagnosis.
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Affiliation(s)
- Chih-Ching Lai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan; (C.-C.L.); (F.-N.W.)
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei 112201, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.P.); (T.-P.L.)
| | - Fu-Nien Wang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan; (C.-C.L.); (F.-N.W.)
| | - Yu-Ching Peng
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.P.); (T.-P.L.)
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Tzu-Ping Lin
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.P.); (T.-P.L.)
- Department of Urology, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Hsu-Hsia Peng
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300044, Taiwan; (C.-C.L.); (F.-N.W.)
- Correspondence: (H.-H.P.); (S.-H.S.); Tel.: +886-3-571-5131 (ext. 80189) (H.-H.P.); +886-2-28757350 (S.-H.S.)
| | - Shu-Huei Shen
- Department of Radiology, Taipei Veterans General Hospital, Taipei 112201, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.P.); (T.-P.L.)
- Correspondence: (H.-H.P.); (S.-H.S.); Tel.: +886-3-571-5131 (ext. 80189) (H.-H.P.); +886-2-28757350 (S.-H.S.)
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7
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Abstract
BACKGROUND Due to the lack of an evidence-based consensus, managing refractory myofascial pain syndrome is challenging for clinicians. Dextrose injection (dextrose prolotherapy) emerged as a promising, cost-effective treatment. This study evaluated the efficacy of targeted ultrasound-guided dextrose injection for localized myofascial pain syndrome. METHODS We retrospectively reviewed the clinical outcomes of 45 patients with myofascial pain syndrome refractory to alternative treatments with targeted ultrasound-guided dextrose injection. Pretreatment symptom severity and symptomatic response 1 month after treatment were statistically analyzed using a visual analog scale (VAS)-based scoring system. RESULTS Of 45 patients, 8 (24.4%) reported complete resolution of symptoms at the treated site. In total, 36 (80.0%) patients reported greater than 50% improvement in their symptoms. The mean pretreatment and posttreatment VAS scores were 7.0 and 2.44 (p < 0.001), indicating an overall 65.0% reduction in symptom severity. CONCLUSION Targeted ultrasound-guided dextrose injection was remarkably effective for refractory localized myofascial pain syndrome, significantly reducing symptom intensities in the majority of treated patients within 1 month after a single injection.
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Affiliation(s)
- Yen Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
- Address correspondence. Dr. Hong-Jen Chiou, Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shi-Pai Road, Taipei 112, Taiwan, ROC. E-mail address: (H.-J. Chiou)
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Lin YY, Wang HK, Chen HS, Kwok CF. MON-459 Bilateral Killian-Jamieson Diverticulum Mimicking Thyroid Nodules. J Endocr Soc 2020. [PMCID: PMC7207478 DOI: 10.1210/jendso/bvaa046.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background In recent years, incidence and prevalence of thyroid and extrathyroid lesion is increasing in the worldwide due to increase awareness of medical check-up, and widespread use of imaging techniques. A Killian Jamieson diverticulum (KJD), a rare type of hypopharyngeal pulsion diverticulum outpouching from the lateral wall of the proximal cervical esophagus, was incidentally detected and likely to be misinterpreted as a thyroid nodule while performing thyroid sonography. Clearly differentiate between those lesions is essential to avoid unnecessary invasive procedure. Here we report a typical case of bilateral Killian Jamieson diverticulum mimicking thyroid nodules. Clinical case A 57-year-old Taiwanese man was referred to our endocrine outpatient department for further evaluation of thyroid nodules. The lesions were discovered while sonographic examination performed in the clinic for routine medical check-up. He denied having dysphagia, epigastric pain, odynophagia, halitosis, chronic cough or acid regurgitation, body weight loss, fever and dyspnea. He had no previous systemic disease and no prior radiation therapy. He lives in Nangang District, Taipei city. His body weight was 70 kg and BMI was 25. An examination of head and neck was unremarkable. Laboratory data revealed normal thyroid function (TSH: 0.67 uIU/ml; range 0.4~4.0, free T4: 0.83 ng/dl; range 0.9~1.8 and aTPO <1.0 IU/ml; range <5). Thyroid ultrasonography demonstrated oval, hypoechoic nodule-like lesions containing bright foci with acoustic shadow in the posterior aspect of the both lobes of thyroid gland. The rest of thyroid glands were normal appearance. An esophagography was performed and showed two contrast-filling anterior outpouching lesions at both sides of the cervical esophagus, around C7 level and both lesions were showing anterior outpouching appearance, consider Killian-Jamieson diverticulum. Taken together, he was diagnosed as KJD and clinical follow-up alone is suggested. Clinical lessons KJD is usually incidentally detected and misdiagnosed as a thyroid nodule containing punctuate microcalcification foci as found in papillary thyroid carcinoma. To differentiate these nodules, real time sonographic examination is important. Although rare, non-thyroid lesions originating from the esophagus should be considered in the differential diagnosis of the thyroid nodules to avoid unnecessary invasive fine needle aspiration of thyroid gland.
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Affiliation(s)
- Yu-Yi Lin
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Harn-Shen Chen
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ching-Fai Kwok
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
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Chou YH, Liang JD, Wang SY, Hsu SJ, Hu JT, Yang SS, Wang HK, Lee TY, Tiu CM. Safety of Perfluorobutane (Sonazoid) in Characterizing Focal Liver Lesions. J Med Ultrasound 2019; 27:81-85. [PMID: 31316217 PMCID: PMC6607878 DOI: 10.4103/jmu.jmu_44_19] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/03/2019] [Indexed: 12/21/2022] Open
Abstract
Background: The purpose of this study was to report the safety of perfluorobutane (Sonazoid) as a vascular-phase imaging agent in characterizing focal liver lesions (FLLs). Materials and Methods: From May 2014 to April 2015, a total of 54 individuals who received Sonazoid contrast-enhanced ultrasound (CEUS) were enrolled at 5 hospitals of 4 medical centers. All individuals were included in safety evaluation. A prospective study to evaluate the adverse effect (AE) incidences after intravenous administration of Sonazoid. Results: Sonazoid was well tolerated. Treatment-emergent adverse events (TEAEs) representing AE were recorded for 13 (24.1%) patients. The most common AE was abdominal pain (9.3%), followed by heart rate irregularity (5.6%). The majority of these patients (69.2%) experienced TEAEs that were mild in intensity. Sonazoid causes no significant AEs after intravenous injection. The only noteworthy AEs are related to tolerable myalgia (3.7%), abdominal pain (1.9%), and headache (1.9%). None of the 54 patients showed serious adverse effects. Conclusion: Sonazoid shows good safety and tolerance of intravenous use during CEUS of the liver for evaluation of FLLs.
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Affiliation(s)
- Yi-Hong Chou
- Department of Medical Imaging and Radiological Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan.,Department of Radiology, Taipei Veterans General Hospital and School of Medicine, National Yang Ming University, Taipei, Taiwan.,Department of Radiology, Yee Zen General Hospital, Taoyuan, Taiwan
| | - Ja-Der Liang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shen-Yung Wang
- Department of Medicine, Division of Gastroenterology, MacKay Memorial Hospital, Tamshui Branch, Taipei, Taiwan
| | - Shih-Jer Hsu
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan
| | - Jui-Ting Hu
- Liver Center, Cathay General Hospital and School of Medicine, Fu-Jen Catholic University College of Medicine, Taipei, Taiwan
| | - Sien-Sing Yang
- Liver Center, Cathay General Hospital and School of Medicine, Fu-Jen Catholic University College of Medicine, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital and School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Tien-Ying Lee
- Department of Radiology, Yee Zen General Hospital, Taoyuan, Taiwan
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital and School of Medicine, National Yang Ming University, Taipei, Taiwan.,Department of Radiology, Yee Zen General Hospital, Taoyuan, Taiwan
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Lin SH, Wang HK, Yeh KT, Tai HC, Wang HY, Huang LR, Chiu CW, Chung CM, Velmurugan BK. c-MYC expression in T (III/IV) stage oral squamous cell carcinoma (OSCC) patients. Cancer Manag Res 2019; 11:5163-5169. [PMID: 31239771 PMCID: PMC6556540 DOI: 10.2147/cmar.s201943] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/10/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose: c-MYC has been noted in many tumor types, but its functional significance and clinical utility in oral squamous cell carcinoma (OSCC) are not well known. Here we studied the expression of c-MYC in correlation to clinical outcome in patients with oral squamous cell carcinoma. Methods: The current study, using immunohistochemical staining, first examined c-MYC expression in OSCC patients and further correlated its expression with clinicopathological parameters. Results: c-MYC was expressed in the majority of OSCC patients (n=133). The c-MYC expression is associated with histological grade (P=0.0205) of patients with oral squamous cell carcinoma. Multivariate Cox regression analysis revealed that TN stage (P<0.001), American Joint Committee on Cancer (AJCC) stage (P<0.0001), and tumor differentiation (P=0.0025) were independent factors for overall survival in patients with OSCC except for c-MYC expression (P>0.05). Multiplicative-scale interaction between T stage (III/IV) and low c-MYC expression on mortality risk was identified (P=0.0233). Kaplan-Meier survival analysis demonstrated that oral cancer patients (T III/IV stage) with high c-MYC expression had better survival than those with low and medium c-MYC expression (P=0.0270). Conclusion: Our data indicate that c-MYC is a potential biomarker that can be used as a therapeutic target for treating OSCC patients with T stage (III/IV).
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Affiliation(s)
- Shu-Hui Lin
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Hsin-Kai Wang
- Public Health Bureau, Tainan City Government, Tainan, Taiwan.,Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Kun-Tu Yeh
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Hui-Chun Tai
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Hui-Yi Wang
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Lan-Ru Huang
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Chun-Wen Chiu
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chia-Min Chung
- Graduate Institute of BioMedical Sciences, China Medical University, Taichung, Taiwan.,Environment-Omics-Diseases Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Bharath Kumar Velmurugan
- Toxicology and Biomedicine Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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11
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Chen ZQ, Li ZH, Hua H, Watanabe H, Yuan CX, Zhang SQ, Lorusso G, Nishimura S, Baba H, Browne F, Benzoni G, Chae KY, Crespi FCL, Doornenbal P, Fukuda N, Gey G, Gernhäuser R, Inabe N, Isobe T, Jiang DX, Jungclaus A, Jung HS, Jin Y, Kameda D, Kim GD, Kim YK, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Li XQ, Lou JL, Lane GJ, Li CG, Luo DW, Montaner-Pizá A, Moschner K, Niu CY, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Sumikama T, Söderström PA, Sakurai H, Schaffner H, Simpson GS, Steiger K, Suzuki H, Taprogge J, Takeda H, Vajta Z, Wang HK, Wu J, Wendt A, Wang CG, Wu HY, Wang X, Wu CG, Xu C, Xu ZY, Yagi A, Ye YL, Yoshinaga K. Proton Shell Evolution below ^{132}Sn: First Measurement of Low-Lying β-Emitting Isomers in ^{123,125}Ag. Phys Rev Lett 2019; 122:212502. [PMID: 31283301 DOI: 10.1103/physrevlett.122.212502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/01/2019] [Indexed: 06/09/2023]
Abstract
The β-delayed γ-ray spectroscopy of neutron-rich ^{123,125}Ag isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2^{-} β-emitting isomers in ^{123,125}Ag are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2^{+} and 1/2^{-} levels is extended in Ag isotopes up to N=78, providing a clear signal for the reduction of the Z=40 subshell gap in Ag towards N=82. Shell-model calculations with the state-of-the-art V_{MU} plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in ^{123,125}Ag. The tensor force is found to play a crucial role in the evolution of the size of the Z=40 subshell gap. The observed inversion of the single-particle levels around ^{123}Ag can be well interpreted in terms of the monopole shift of the π1g_{9/2} orbitals mainly caused by the increasing occupation of ν1h_{11/2} orbitals.
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Affiliation(s)
- Z Q Chen
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - Z H Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - H Hua
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - H Watanabe
- IRCNPC, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, Guangdong, China
| | - S Q Zhang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - G Lorusso
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- National Physical Laboratory, NPL, Teddington, Middlesex TW11 0LW, United Kingdom
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - S Nishimura
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - F Browne
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ, United Kingdom
| | - G Benzoni
- INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
| | - K Y Chae
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - F C L Crespi
- INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
- Dipartimento di Fisica, Universitá di Milano, via Celoria 16, I-20133 Milano, Italy
| | - P Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - G Gey
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- LPSC, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
- Institut Laue-Langevin, B.P. 156, F-38042 Grenoble Cedex 9, France
| | - R Gernhäuser
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - N Inabe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Isobe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D X Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - H S Jung
- Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Y Jin
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D Kameda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - G D Kim
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
| | - Y K Kim
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
- Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - I Kojouharov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - F G Kondev
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - T Kubo
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Kurz
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - Y K Kwon
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
| | - X Q Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - J L Lou
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - G J Lane
- Department of Nuclear Physics, R.S.P.E., Australian National University, Canberra, Australian Capital Territory 0200, Australia
| | - C G Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D W Luo
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - A Montaner-Pizá
- IFIC, CSIC-Universidad de Valencia, A.C. 22085, E 46071, Valencia, Spain
| | - K Moschner
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - C Y Niu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - F Naqvi
- Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8120, USA
| | - M Niikura
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan
| | - H Nishibata
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
| | - A Odahara
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
| | - R Orlandi
- Instituut voor Kern en Stralingsfysica, KU Leuven, University of Leuven, B-3001 Leuven, Belgium
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - Z Patel
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - T Sumikama
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - P-A Söderström
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Sakurai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Schaffner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - G S Simpson
- LPSC, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
| | - K Steiger
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - H Suzuki
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - J Taprogge
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - H Takeda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zs Vajta
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- MTA Atomki, P.O. Box 51, Debrecen, H-4001, Hungary
| | - H K Wang
- College of Physics and Telecommunication Engineering, Zhoukou Normal University, Henan 466000, People's Republic of China
| | - J Wu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - A Wendt
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - C G Wang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - H Y Wu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - X Wang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - C G Wu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - C Xu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - Z Y Xu
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan
- Department of Physics, the University of Hong Kong, Pokfulam Road, Hong Kong
| | - A Yagi
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
| | - Y L Ye
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - K Yoshinaga
- Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
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12
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Velmurugan BK, Wang HK, Chung CM, Lee CH, Huang LR, Yeh KT, Lin SH. CIP2A overexpression in Taiwanese oral cancer patients. Cancer Manag Res 2019; 11:2589-2594. [PMID: 31114325 PMCID: PMC6497856 DOI: 10.2147/cmar.s201154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/05/2019] [Indexed: 12/15/2022] Open
Abstract
Introduction: Oral cancer is a prevalent form of cancer worldwide, particularly in Taiwan, and mechanisms involved in oral squamous cell carcinoma (OSCC) progression remain relatively unknown. Cancerous inhibitor of protein phosphatase 2A (CIP2A), an oncoprotein, is aberrantly expressed in many human malignant tumors including oral cancer. However, the expression and role played by CIP2A in oral cancer pathogenesis remain obscure. Methods: In this study, immunohistochemistry was used to analyze CIP2A expression between OSCC tissues and their adjacent noncancerous tissues. Furthermore, associations between CIP2A expression and histopathological parameters were investigated. Results: In this study, we showed that CIP2A was overexpressed in most of the OSCC tissues. High CIP2A expression was significantly associated with moderate/poor tumor differentiation (P=0.02). No significant association was found between CIP2A expression and other clinical parameters. Kaplan-Meier analysis revealed that high CIP2A expression showed poorer survival rates than those with low CIP2A expression (P=0.047). Multivariate Cox regression analysis indicated that CIP2A expression, N stage, American Joint Committee on Cancer stage and clinical therapy were independent prognostic factors for survival. Conclusion: Thus, our study suggests that CIP2A is an independent prognostic marker for OSCC and a novel target for OSCC treatment.
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Affiliation(s)
| | - Hsin-Kai Wang
- Public Health Bureau, Tainan City Government, Tainan City, Taiwan.,Jenteh Junior College of Medicine, Nursing and Management, Taiwan
| | - Chia-Min Chung
- Graduate Institute of BioMedical Sciences, China Medical University, Taichung, Taiwan.,Environment-Omics-Diseases Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Chien-Hsun Lee
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Lan-Ru Huang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Kun-Tu Yeh
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shu-Hui Lin
- Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
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13
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Chou Y, Chou YH, Chiou YY, Wang HK, Lai YC, Lin YH, Chiou HJ, Tiu CM. Percutaneous ethanol ablation of intrahepatic arterial pseudoaneurysm: A case report. J Clin Ultrasound 2019; 47:235-238. [PMID: 30561013 DOI: 10.1002/jcu.22678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 11/06/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Hepatic arterial pseudoaneurysm is a rare but potentially fatal condition that requires prompt management. We report a case of hepatic arterial pseudoaneurysm developed after radiofrequency ablation of a hepatocellular carcinoma. The patient was successfully treated with percutaneous absolute ethanol injection under ultrasound guidance. Follow-up studies with ultrasound and computed tomography for 2 years after treatment revealed no evidence of local recurrence of hepatocellular carcinoma and of the pseudoaneurysm.
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Affiliation(s)
- Yen Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medical Imaging and Radiological Technology, Yuan Pei University of Medical Technology, Hsinchu, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Yee Zen General Hospital, Taoyuan, Taiwan
| | - Yi-You Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
- Lo-Hsu Medical Foundation Lotung Poh-Ai Hospital, Yilan, Taiwan
- Yee Zen General Hospital, Taoyuan, Taiwan
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14
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Hsieh PC, Chiou HJ, Wang HK, Lai YC, Lin YH. Ultrasound-Guided Prolotherapy for Acromial Enthesopathy and Acromioclavicular Joint Arthropathy: A Single-Arm Prospective Study. J Ultrasound Med 2019; 38:605-612. [PMID: 30171616 DOI: 10.1002/jum.14727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 05/08/2018] [Accepted: 05/21/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVES Prolotherapy is an injection-based complementary treatment for various musculoskeletal diseases. The aim of this study was to evaluate the therapeutic efficacy of ultrasound-guided prolotherapy in the treatment of acromial enthesopathy and acromioclavicular joint arthropathy. METHODS Thirty-one patients with chronic moderate-to-severe shoulder pain were recruited from September 2015 to September 2017. Ultrasound-guided prolotherapy was performed by injecting 10 mL of a 15% dextrose solution into the acromial enthesis of the deltoid or acromioclavicular joint capsule aseptically. Prolotherapy was given in 2 sessions separated by a 1-month interval. The pretreatment-to-posttreatment change in the pain visual analog scale (VAS) score was recorded as the primary outcome. The mean follow-up duration was 61.8 days. A paired t test was used to assess the difference in pretreatment and posttreatment VAS scores. A univariate logistic regression analysis was conducted to identify the demographic variables associated with substantial pain reduction after the intervention. Substantial pain reduction was defined as a posttreatment VAS score of 3 or less. RESULTS Twenty of the 31 patients reported substantial pain reduction without adverse effects after the intervention. The mean VAS score reduction ± SD was 4.3 ± 2.6 (pretreatment, 6.8 ± 1.5; posttreatment, 2.5 ± 2.1; P < .01). CONCLUSIONS Ultrasound-guided prolotherapy with a 15% dextrose solution is an effective and safe therapeutic option for moderate-to-severe acromial enthesopathy and acromioclavicular joint arthropathy.
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Affiliation(s)
- Pei-Chun Hsieh
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
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15
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Lai CC, Huang PH, Wang FN, Shen SH, Wang HK, Liu HT, Chung HJ, Lin TP, Chang YH, Pan CC, Peng SL. Histogram analysis of prostate cancer on dynamic contrast-enhanced magnetic resonance imaging: A preliminary study emphasizing on zonal difference. PLoS One 2019; 14:e0212092. [PMID: 30753222 PMCID: PMC6372178 DOI: 10.1371/journal.pone.0212092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/28/2019] [Indexed: 11/18/2022] Open
Abstract
Background This study evaluated the performance of histogram analysis in the time course of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for differentiating cancerous tissues from benign tissues in the prostate. Methods We retrospectively analyzed the histograms of DCE-MRI of 30 patients. Histograms within regions of interest(ROI) in the peripheral zone (PZ) and transitional zone (TZ) were separately analyzed. The maximum difference wash-in slope (MWS) and delay phase slope (DPS) were defined for each voxel. Differences in histogram parameters, namely the mean, standard deviation (SD), the coefficient of variation (CV), kurtosis, skewness, interquartile range (IQR), percentile (P10, P25, P75, P90, and P90P10), Range, and modified full width at half-maximum (mFWHM) between cancerous and benign tissues were assessed. Results In the TZ, CV for ROIs of 7.5 and 10mm was the only significantly different parameter of the MWS (P = 0.034 and P = 0.004, respectively), whereas many parameters of the DPS (mean, skewness, P10, P25, P50, P75 and P90) differed significantly (P = <0.001–0.016 and area under the curve [AUC] = 0.73–0.822). In the PZ, all parameters of the MWS exhibited significant differences, except kurtosis and skewness in the ROI of 7.5mm(P = <0.001–0.017 and AUC = 0.865–0.898). SD, IQR, mFWHM, P90P10 and Range were also significant differences in the DPS (P = 0.001–0.035). Conclusion The histogram analysis of DCE-MRI is a potentially useful approach for differentiating prostate cancer from normal tissues. Different histogram parameters of the MWS and DPS should be applied in the TZ and PZ.
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Affiliation(s)
- Chih-Ching Lai
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Pin-Hsun Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Fu-Nien Wang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Shu-Huei Shen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
| | - Hsian-Tzu Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
| | - Hsiao-Jen Chung
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tzu-Ping Lin
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yen-Hwa Chang
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
- Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chin-Chen Pan
- School of Medicine, Taipei, National Yang-Ming University, Taipei, Taiwan
- Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shin-Lei Peng
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
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16
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Tay SY, Tiu CM, Hu B, Wang HK, Chiou HJ, Lin YH, Lai YC, Chan WP, Chou YH. Characterization and management of various renal cystic lesions by sonographic features. J Chin Med Assoc 2018; 81:1017-1026. [PMID: 30017809 DOI: 10.1016/j.jcma.2018.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 04/09/2018] [Indexed: 10/28/2022] Open
Abstract
Renal cysts are common incidental findings in clinical practice. Most renal cysts detected in medical imaging are benign simple cysts. However, some are complicated by hemorrhage or infection or are associated with calcification. In these instances, difficulties can be encountered distinguishing the complicated cysts from cystic renal tumors such as cystic renal cell carcinoma, multilocular cystic nephroma, and mixed epithelial and stromal tumors. The Bosniak classification is widely used to categorize cystic renal lesions but is used to classify those discovered via computed tomography. Ultrasonography (US) and color Doppler US are the most frequently used imaging techniques for abdominal surveys and long-term follow-up because of their noninvasiveness, relatively low cost, wide availability, and frequently, lack of contrast medium. Herein, we review the features of various cystic lesions of the kidney that can be found using US, discuss differential diagnoses using US, and propose a feature-oriented algorithmic approach to classifying renal cystic lesions using US.
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Affiliation(s)
- Shee-Yen Tay
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC; Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC; Yee Zen Hospital, Taoyuan, Taiwan, ROC; Lo-Hsu Medical Foundation, Lotung Poh-Ai Hospital, Yilan, Taiwan, ROC
| | - Bing Hu
- Department of Ultrasonography, Shanghai Jiaotong University Affiliated No. 6 Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Wing P Chan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC; Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital and National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC; Yee Zen Hospital, Taoyuan, Taiwan, ROC; Yuanpei University of Medical Technology, Hsinchu, Taiwan, ROC.
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17
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Lin LY, Chiou HJ, Chou YH, Wang HK, Lai YC, Lin YH. A Case of Tubular Adenoma of Gallbladder Diagnosed Using Contrast-Enhanced Ultrasonography. J Med Ultrasound 2018; 26:218-221. [PMID: 30662155 PMCID: PMC6314087 DOI: 10.4103/jmu.jmu_47_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/07/2018] [Indexed: 12/18/2022] Open
Abstract
Contrast-enhanced ultrasound (CEUS) has been used to diagnose gallbladder (GB) diseases for recent years because it is sensitive to visualize vascularity. Herein, we report a case who had a 1.7 cm × 1.2 cm polypoid lesion located in the gallbladder fundus with a feeding artery located in the stalk. On CEUS, the lesion showed early arterial phase enhancement (time to peak enhancement 18 s), persisting throughout the venous and delay phases. This enhancing pattern suggested that the lesion was a GB adenoma rather than a GB carcinoma. Cholecystectomy was performed, and pathology of the tissue revealed tubular adenoma of the GB.
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Affiliation(s)
- Lo-Yi Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hong-Jen Chiou
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming University, Taipei, Taiwan.,National Defense Medical Center, Taipei, Taiwan
| | - Yi-Hong Chou
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Chen Lai
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yun-Hui Lin
- Division of Ultrasound and Breast Imaging, Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
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18
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Chen TJ, Tsai YF, Chou YH, Chen LK, Chiou HJ, Lai YC, Lin YH, Wang HK, Tiu CM. Shoulder joint synovial chondromatosis presenting as multiple axillary masses: A case report. J Clin Ultrasound 2018; 46:361-363. [PMID: 29159809 DOI: 10.1002/jcu.22555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/25/2017] [Accepted: 10/10/2017] [Indexed: 06/07/2023]
Abstract
Synovial chondromatosis is a rare, benign, proliferative cartilaginous lesion arising from the synovial tissue, tenosynovium, or bursal lining. We describe the case of a patient who initially presented with multiple axillary masses. Breast ultrasound (US) was requested due to the concern of a breast tumor with axillary lymph node metastases. US study was helpful and provided adequate information to suggest the diagnosis.
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Affiliation(s)
- Tai-Jui Chen
- Department of Radiology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
| | - Yuh-Feng Tsai
- Department of Radiology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Liang-Kuang Chen
- Department of Radiology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
- School of Medicine, Fu Jen Catholic University, Taipei, Taiwan
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, and School of Medicine, National Yang Ming University, Taipei, Taiwan
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Wu CH, Luo Y, Fei X, Chou YH, Chiou HJ, Wang HK, Lai YC, Lin YH, Tiu CM, Wang J. Algorithmic approaches to the diagnosis of gallbladder intraluminal lesions on ultrasonography. J Chin Med Assoc 2018; 81:297-304. [PMID: 29475813 DOI: 10.1016/j.jcma.2018.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 06/04/2017] [Indexed: 10/18/2022] Open
Abstract
Ultrasound is a frequently used diagnostic tool for gallbladder diseases. Polypoid lesions are commonly depicted at routine abdominal ultrasonography (US). The characteristics of these lesions vary. Since most early malignant tumors in the gallbladder are asymptomatic, differentiation between malignancy and benignity is crucial. Knowledge of gallbladder polypoid lesions is important so that they can be appropriately included in the differential diagnosis in patients presenting with intra-gallbladder nodules on US. This article summarizes the algorithmic approach to the diagnosis of these lesions and our recent experience with contrast-enhanced US. The clinical and imaging features of gallbladder polypoid lesions are reviewed.
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Affiliation(s)
- Chia-Hung Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yukun Luo
- Ultrasound Department, The General Hospital of People's Liberation Army, Beijing, China
| | - Xiang Fei
- Ultrasound Department, The General Hospital of People's Liberation Army, Beijing, China
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC; Yuanpei University of Medical Technology, Hsinchu, Taiwan, ROC.
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC; Yee Zen Hospital, Taoyuan, Taiwan, ROC; Lo-Hsu Medical Foundation Lotung Poh-Ai Hospital, Yilan, Taiwan, ROC
| | - Jane Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
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Lee KL, Chen TJ, Won GS, Chou YH, Chiou HJ, Wang HK, Lai YC, Lin YH, Wang J. The use of fine needle aspiration and trends in incidence of thyroid cancer in Taiwan. J Chin Med Assoc 2018; 81:164-169. [PMID: 29174930 DOI: 10.1016/j.jcma.2017.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 09/30/2017] [Accepted: 09/30/2017] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Thyroid cancer is the most prevalent endocrine malignancy, and the incidence of thyroid cancer has increased worldwide. Fine needle aspiration (FNA) for cytology of thyroid tissue is used for differentiating thyroid cancers from benign thyroid nodules. Overuse of FNA may detect subclinical thyroid cancer and play a role in the increased incidence of thyroid cancer. The aim of this study was to evaluate trends in incidence of thyroid cancer and the use of palpation-guided FNA thyroid and ultrasound-guided FNA thyroid in Taiwan. METHODS By retrospectively analyzing a cohort dataset of one million people randomly sample to represent as NHI beneficiaries of Taiwan National Health Insurance Research Database from 2004 to 2010, patients who received palpation-guided and ultrasound-guided thyroid FNA were identified. Individuals who were diagnosed as having thyroid cancer were determined. Age-standardized, yearly rates of palpation-guided thyroid FNA and ultrasound-guided FNA, and age-standardized, yearly incidence rates of thyroid cancer were calculated. RESULTS In the study period, a total of 541 patients were newly diagnosed with thyroid cancer, 14,240 individuals received palpation-guided thyroid FNA, and 3823 individuals underwent ultrasound-guided thyroid FNA. There was a 94.8% increase in the age-standardized annual incidence rate of thyroid cancer. The age-standardized rates of palpation-guided thyroid FNA and ultrasound-guided thyroid FNA increased by 10.9% and 349.3%, respectively. CONCLUSION FNA for cytology of thyroid tissue, especially ultrasound-guided FNA, was conducted by physicians more frequently in Taiwan. Increased use of FNA, especially ultrasound-guided FNA for cytology of thyroid tissue, may attribute to the increased incidence of thyroid cancer in Taiwan.
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Affiliation(s)
- Kang-Lung Lee
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Tzeng-Ji Chen
- Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Institute of Hospital and Health Care Administration, National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Ging-Shing Won
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC; Yuanpei University of Medical Technology, Hsinchu, Taiwan, ROC.
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Jane Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; Department of Radiology, National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
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Sun YS, Sun IT, Wang HK, Yang AH, Tsai CY, Huang CJ, Huang DF, Lai CC. Risk of complications of ultrasound-guided renal biopsy for adult and pediatric patients with systemic lupus erythematosus. Lupus 2018; 27:828-836. [PMID: 29301470 DOI: 10.1177/0961203317751048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective The objective of this paper is to identify the risk of complications of real-time ultrasound-guided renal biopsy in adult and pediatric patients with systemic lupus erythematosus (SLE). Materials and methods This retrospective study examined outcomes of 296 renal biopsy procedures in 275 SLE patients. Imaging-confirmed symptomatic hematoma was regarded as a major complication when intervention (blood transfusion, angiographic embolization, or surgery) was required or as a minor complication otherwise. Clinical and laboratory data were compared between groups with or without complications after initial or subsequent renal biopsy. Binary logistic regressions were used to evaluate complication risk of initial renal biopsy. Results Overall complication rate of initial renal biopsy was 8.7% (major: 2.9%, minor: 5.8%). Three patients expired from pulmonary hemorrhage, thrombotic microangiopathy, and pneumonia. Pediatric SLE patients tended to have a higher rate of major complications (12.5%) than adult patients (2.3%). According to multivariable analysis results, elevated serum creatinine (SCr) level (OR 1.45; 95% CI 1.17-1.81 per mg/dl), prolonged prothrombin time (PT) (OR 2.2; 95% CI 1.05-4.62 per second), and thrombocytopenia (OR 4.3; 95% CI 1.56-11.9) increased overall complication risk of initial renal biopsy. Age < 18 years (OR 8.43; 95% CI 1.21-58.8), thrombocytopenia (OR 16.4; 95% CI 2.44-110.5), and elevated SCr level (OR 1.97; 95% CI 1.36-2.86 per md/dl) increased risk of major complications. Thrombocytopenia, prolonged PT, and elevated SCr level were associated with complications after subsequent renal biopsy (all p = 0.01). Conclusions SLE patients, particularly patients under 18 years old or with elevated SCr level, prolonged PT, or thrombocytopenia, have an increased risk of complications after initial or subsequent renal biopsy.
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Affiliation(s)
- Y S Sun
- 1 Division of Allergy, Immunology, and Rheumatology, Department of Medicine, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan
| | - I T Sun
- 2 Department of Ophthalmology, 63344 E-Da Hospital , I-Shou University, Kaohsiung, Taiwan
| | - H K Wang
- 3 Department of Radiology, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - A H Yang
- 4 Department of Pathology, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - C Y Tsai
- 1 Division of Allergy, Immunology, and Rheumatology, Department of Medicine, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - C J Huang
- 5 Division of Endocrinology and Metabolism, Department of Medicine, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - D F Huang
- 1 Division of Allergy, Immunology, and Rheumatology, Department of Medicine, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan
| | - C C Lai
- 1 Division of Allergy, Immunology, and Rheumatology, Department of Medicine, 46615 Taipei Veterans General Hospital , Taipei City, Taiwan.,6 Faculty of Medicine, National Yang-Ming University, Taipei City, Taiwan.,7 Institute of Clinical Medicine, National Yang-Ming University, Taipei City, Taiwan
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Yeh YT, Chen CY, Tseng HS, Wang HK, Tsai HL, Lin NC, Wei CF, Liu C. Enlarging vascular stents after pediatric liver transplantation. J Pediatr Surg 2017; 52:1934-1939. [PMID: 28927979 DOI: 10.1016/j.jpedsurg.2017.08.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 08/28/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND Endovascular intervention with stent placement to treat portal vein (PV) and hepatic vein (HV) stenosis after pediatric liver transplantation (LT) is still controversial in small children owing to the potential risk of functional stenosis after growth. The aim of this study is to evaluate the safety and efficacy of stent placement in this population. METHODS Between 2004 and 2016, 6 children (all <3 years) received HV (n = 2) and PV (n = 4) stents placement among 46 pediatric LT patients at our institution. The clinical outcome and patency rate were followed. Morphologic changes of stents were assessed from plain films by a new index: the stent diameter ratio (SDR). RESULTS The median age of the patients at LT was 8.9 months. The patency rate was 100% without functional stenosis during a median follow-up period of 65.5 months. The "stent growth" phenomenon was demonstrated by SDR with significant resolution of hourglass deformity 2 years after stent placement (p for trend <.001). CONCLUSION Vascular stent placement is a safe and effective method for the management of PV and HV stenosis following pediatric LT because these stents will enlarge as children grow. TYPE OF STUDY Case Series with no Comparison Group LEVEL OF EVIDENCE: Level IV.
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Affiliation(s)
- Yi-Ting Yeh
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Cheng-Yen Chen
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Hsiou-Shan Tseng
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Hsin-Lin Tsai
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Niang-Cheng Lin
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Chou-Fu Wei
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chinsu Liu
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.
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Wu CL, Lai YC, Wang HK, Chen PCH, Chiou HJ. Correlation between histological and ultrasonographic findings of soft tissue tumors: To verify the possibility of cell-like resolution in ultrasonography. J Chin Med Assoc 2017; 80:721-728. [PMID: 28919293 DOI: 10.1016/j.jcma.2017.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 04/12/2017] [Accepted: 04/14/2017] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The purpose of this study is to test the possibility of obtained cell-like resolution in soft tissue tumors on the basis of ultrasound echotexture. METHODS This is a prospective study consisting of 57 patients (29 females and 28 males, age range: 9-83 years, average age: 44.5 years) with palpable soft tissue mass, referred from the Departments of Orthopedics and Oncology for ultrasound (US)-guided biopsy. The study was approved by the institutional review board (IRB) of our hospital. Ultrasonographic images were recorded by still imaging in the biopsy tract in each biopsy session. Equipment included curvilinear and linear array probes. After biopsy, a radiologist and a pathologist correlated the US image and the observations regarding the histology of the tissue specimen in low-power (40 × magnification) and high-power (100-400 × magnification) fields. RESULTS The histologic results included 22 benign and 35 malignant lesions. The echotexture of the soft tissue tumors correlated well with the cellular distribution and arrangement: the greater the number of cells and the more regular their arrangement as seen histologically, the greater is the hypoechogenicity on the ultrasound. The echogenicity of the soft tissue tumor also correlated well with the presence of fat cells, hemorrhage, cartilage, and osteoid tissue, all of which cause an increase in echogenicity. CONCLUSION This study showed that the echotexture of soft tissue tumors can predict some details of cellular histology.
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Affiliation(s)
- Ching-Lan Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Paul Chih-Hsueh Chen
- Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC.
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Abstract
Our study aimed to evaluate the utility of muscle ultrasound in newborn screening of infantile-onset Pompe disease (IOPD) and to establish a system of severity grading. We retrospectively selected 35 patients with initial low acid alpha-glucosidase (GAA) activity and collected data including muscle ultrasound features, GAA gene mutation, activity/performance, and pathological and laboratory findings. The echogenicity of 6 muscles (the bilateral vastus intermedius, rectus femoris, and sartorius muscles) was compared to that of epimysium on ultrasound and rated either 1 (normal), 2 (mildly increased), or 3 (obviously increased). These grades were used to divide patients into 3 groups. IOPD was present in none of the grade-1 patients, 5 of 9 grade-2 patients, and 5 of 5 grade-3 patients (P < .001). Comparing grade-2 plus grade-3 patients to grade-1 patients, muscle ultrasound detected IOPD with a sensitivity and specificity of 100.0% (95% confidence interval [CI]: 69.2%-100%) and 84.0% (95% CI: 63.9%-95.5%), respectively. The mean number of affected muscles was larger in grade-3 patients than in grade-2 patients (4.2 vs. 2.0, P = .005). Mean alanine transaminase (ALT), aspartate transaminase (AST), creatine kinase (CK), and lactate dehydrogenase (LDH) levels were differed significantly different between grade-3 and grade-1 patients (P < .001). Because it permits direct visualization of injured muscles, muscle ultrasound can be used to screen for IOPD. Our echogenicity grades of muscle injury also correlate well with serum levels of muscle-injury biochemical markers.
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Affiliation(s)
| | - Ting-Rong Hsu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | | | | | - Dau-Ming Niu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
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Tsai SY, Hsu CY, Chou YH, Lai YC, Lin YH, Wang HK, Chiou HJ, Wang J, Tiu CM. Solitary fibrous tumor of the breast: A case report and review of the literature. J Clin Ultrasound 2017; 45:350-354. [PMID: 27753108 DOI: 10.1002/jcu.22415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 07/26/2016] [Accepted: 08/28/2016] [Indexed: 06/06/2023]
Abstract
Solitary fibrous tumor (SFT) is an uncommon neoplasm of mesenchymal origin, which can be benign or malignant. Most SFTs develop from the pleura, but they can also be found in other sites. There are only few reports of SFT occurring in the breast. We herein report such a rare case. Sonography demonstrated an ovoid lesion mimicking a fibroadenoma, whereas color Doppler imaging showed marked internal vascularity. A brief literature review on imaging features of SFTs is added. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 45:350-354, 2017.
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Affiliation(s)
- Shu-Ya Tsai
- Department of Radiology, Memorial Far-Eastern Hospital, New Taipei, Taiwan
| | - Chih-Yi Hsu
- Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jane Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Radiology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Chiu TC, Chou YH, Tiu CM, Chiou HJ, Wang HK, Lai YC, Chiou YY. Right-Sided Colonic Diverticulitis: Clinical Features, Sonographic Appearances, and Management. J Med Ultrasound 2017; 25:33-39. [PMID: 30065452 PMCID: PMC6029290 DOI: 10.1016/j.jmu.2016.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/19/2016] [Indexed: 12/29/2022] Open
Abstract
PURPOSE This study aims to evaluate patients with right-sided colonic diverticulitis detected at ultrasonography (US). METHODS We retrospectively analyzed 14 patients. Demographic data, clinical features, and US images were documented. RESULTS In the 14 patients, clinical manifestations included right lower abdominal tenderness (93%), leukocytosis (57.1%), and fever (28.6%). Diverticulitis occurred in cecum and ascending colon with a similar frequency (35.7%). US features included diverticular wall thickening (50%), surrounding echogenic fat (50%), intradiverticular echogenic material (50%), adjacent lymph node enlargement (21.4%), intradiverticularor peridiverticular fluid collection (28.6%), and color flow signals on or surrounding the diverticula (14.3%). Two (14.2%) patients suffered from recurrence. Two (14.3%) patients had abscess formation, and one (7.1%) patient had diverticulum perforation. Most (85.7%) patients received conservative treatment only. One (7.1%) patient received computed tomography-guided drainage due to diverticulum perforation and pocket of abscess formation. One patient underwent surgery due to recurrent diverticulitis-related fistula. CONCLUSION Common US features of diverticulitis include diverticular wall thickening, surrounding echogenic fat, and intradiverticular echogenic material. Proper recognizing of these features helps in differentiating diverticulitis from appendicitis and may obviate an unnecessary emergent surgery.
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Affiliation(s)
- Tse-Cheng Chiu
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
- School of Medicine, National Yang Ming University, Taipei City, Taiwan, ROC
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
- School of Medicine, National Yang Ming University, Taipei City, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
- School of Medicine, National Yang Ming University, Taipei City, Taiwan, ROC
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
- School of Medicine, National Yang Ming University, Taipei City, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
| | - Yi-You Chiou
- Department of Radiology, Taipei Veteran General Hospital, National Yang Ming University, Taiwan, ROC
- School of Medicine, National Yang Ming University, Taipei City, Taiwan, ROC
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Lai WJ, Wang HK, Liu HT, Park BK, Shen SH, Lin TP, Chung HJ, Huang YH, Chang YH. Cognitive MRI-TRUS fusion-targeted prostate biopsy according to PI-RADS classification in patients with prior negative systematic biopsy results. J Chin Med Assoc 2016; 79:618-624. [PMID: 27567440 DOI: 10.1016/j.jcma.2016.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 04/20/2016] [Accepted: 05/01/2016] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the prostate cancer yield rate of targeted transrectal ultrasound (TRUS)-guided biopsy with cognitive magnetic resonance imaging (MRI) registration without concurrent systematic biopsy in patients with previous negative systematic TRUS-guided biopsy results and persistently elevated prostate-specific antigen (PSA) levels. METHODS In this prospective study conducted from August 2013 to January 2015, patients with at least one previous negative systematic TRUS-guided biopsy and persistently high PSA (≥4 ng/mL) levels were referred for multiparametric MRI (mpMRI). Those patients with suspicious findings on mpMRI received a subsequent cognitive MRI-TRUS fusion biopsy. The cancer-detection rate, tumor location, and Gleason score were confirmed, and PSA-related data were compared between cancer-yield and noncancer-yield groups. RESULTS In total, 48 patients were included in this study. MRI was designated to be four and five in 17 patients. Fifteen patients received a cognitive fusion-targeted biopsy, and prostate cancers were detected in 10 patients. The cancer-detection rate was 20.8% (10/48), and the positive-predictive value of MRI was 66.7%. No significant differences were observed in the PSA level, PSA velocity, or transitional zone volume between the cancer-yield and noncancer-yield groups; however, the corresponding difference in PSA transitional zone density was significant (p=0.025). CONCLUSION Cognitive MRI-TRUS fusion-targeted biopsy without concurrent systematic biopsy can detect significant prostate cancer in patients with previous negative systematic biopsy results and persistently elevated PSA levels. Noncancer-yield patients should undergo active surveillance and further follow-ups.
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Affiliation(s)
- Wei-Jen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Hsian-Tzu Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Byung Kwan Park
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Shu-Huei Shen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; National Yang-Ming University, Institute of Public Health, Taipei, Taiwan, ROC.
| | - Tzu-Ping Lin
- National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Hsiao-Jen Chung
- National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yi-Hsiu Huang
- National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yen-Hwa Chang
- National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Wu TH, Lee HT, Lai CC, Yang AH, Loong CC, Wang HK, Yu CL, Tsai CY. Suppressor of cytokine signaling (SOCS) 1 is down-regulated in renal transplant recipients with rejection. Transpl Immunol 2016; 38:54-9. [DOI: 10.1016/j.trim.2016.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/09/2016] [Accepted: 07/12/2016] [Indexed: 01/14/2023]
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Chen ST, Chiou HJ, Pan CC, Shen SH, Chou YH, Tiu CM, Wang HK, Lai YC, Lin YH, Wang J, Chang CY. Epidermoid cyst of the testis: An atypical sonographic appearance. J Clin Ultrasound 2016; 44:448-451. [PMID: 27028726 DOI: 10.1002/jcu.22355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/25/2016] [Accepted: 02/21/2016] [Indexed: 06/05/2023]
Abstract
Epidermoid cysts are rare. They represent the most common benign tumor of the testis. The sonographic appearances of testicular epidermoid cysts usually include avascular, mostly lamellated, heterogeneous internal echotexture, with hypoechoic and hyperechoic concentric rings, accounting for the typical onion-ring appearance. On MRI, epidermoid cysts show a low-signal-intensity center, with internal concentric rings of alternating high- and low-signal intensity on T2-weighted images, which correlates with the onion-ring appearance. We report a patient with testicular epidermoid cyst with atypical ultrasound and MRI appearances that led to the erroneous initial diagnosis of "burned-out" tumor. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 44:448-451, 2016.
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Affiliation(s)
- Shu-Ting Chen
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Chin-Chen Pan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
- Department of Pathology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
| | - Shu-Huei Shen
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Chui-Mei Tiu
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Yung-Hui Lin
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
| | - Jane Wang
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- Department of Radiology, National Taiwan University College of Medicine, Taipei, Taiwan, Republic of China
| | - Cheng-Yen Chang
- Department of Radiology, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, Taiwan, Republic of China
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
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Lee HJ, Chung HJ, Wang HK, Shen SH, Chang YH, Chen CK, Chou HP, Chiou YY. Evolutionary magnetic resonance appearance of renal cell carcinoma after percutaneous cryoablation. Br J Radiol 2016; 89:20160151. [PMID: 27401340 PMCID: PMC5124922 DOI: 10.1259/bjr.20160151] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Objective: To determine the evolutionary MRI appearance of renal cell carcinoma (RCC) following cryoablation. Methods: For this institution review board-approved study, we recruited patients with biopsy-proven RCC and treated them with percutaneous cryoablation between November 2009 and October 2014. Two radiologists retrospectively reviewed the pre-procedural and follow-up MRI. The findings included tumour sizes, signal intensities on T1 weighted imaging (T1WI), T2 weighted imaging (T2WI), diffusion-weighted imaging, apparent diffusion coefficient (ADC) map and contrast enhancement patterns. The ADC values of the tumours before and after treatment were measured. Results: A total of 26 patients were enrolled. The ablated tumours exhibited predominantly high signals on T1WI at 1–9-month follow-up (47.1% strong hyperintense at 3 months) and subsequently returned to being isointense. In T2WI, the signals of the ablated tumours were highly variable during the first 3 months and became strikingly hypointense after 6 months (58.3% strong hypointense at 6 months). Diffusion restriction was prominent during the first 3 months (lowest ADC: 0.62 ± 0.29 × 10−3 mm2 s−1 at 1 month). Contrast enhancement persisted up to 6 months after the procedure. The residual enhancement gradually increased in the dynamic scan and was most prominent in the delay phase. Conclusion: The MRI of the cryoablated renal tumour follows a typical evolutionary pattern. Advances in knowledge: Familiarity of practitioners with the normal post-cryoablation change of RCC on MRI can enable the early detection and prevention of tumour recurrence.
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Affiliation(s)
- Han-Jui Lee
- 1 Department of Radiology, Taipei Veterans General Hospital, Taipei City, Taiwan.,2 National Yang-Ming University School of Medicine, Taipei City, Taiwan
| | - Hsiao-Jen Chung
- 2 National Yang-Ming University School of Medicine, Taipei City, Taiwan.,3 Department of Urology, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Hsin-Kai Wang
- 1 Department of Radiology, Taipei Veterans General Hospital, Taipei City, Taiwan.,2 National Yang-Ming University School of Medicine, Taipei City, Taiwan
| | - Shu-Huei Shen
- 1 Department of Radiology, Taipei Veterans General Hospital, Taipei City, Taiwan.,2 National Yang-Ming University School of Medicine, Taipei City, Taiwan
| | - Yen-Hwa Chang
- 2 National Yang-Ming University School of Medicine, Taipei City, Taiwan.,3 Department of Urology, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Chun-Ku Chen
- 1 Department of Radiology, Taipei Veterans General Hospital, Taipei City, Taiwan.,2 National Yang-Ming University School of Medicine, Taipei City, Taiwan
| | - Hsiao-Ping Chou
- 2 National Yang-Ming University School of Medicine, Taipei City, Taiwan.,4 Department of Radiology, Yonghe Cardinal Tien Hospital, New Taipei City, Taiwan
| | - Yi-You Chiou
- 1 Department of Radiology, Taipei Veterans General Hospital, Taipei City, Taiwan.,2 National Yang-Ming University School of Medicine, Taipei City, Taiwan
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Chou YH, Chiou HJ, Tiu CM, Wang HK, Lai YC, Lin YH, Chiu TC, Chiou YY. Ultrasonic Contrast Portography for Demonstration of Intrahepatic Porto-systemic Shunts. J Med Ultrasound 2016. [DOI: 10.1016/j.jmu.2015.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Wang XW, Tian JW, Wang HK. Diagnostic value of transvaginal color Doppler ultrasound on endometrial lesions. EUR J GYNAECOL ONCOL 2016; 37:842-845. [PMID: 29943933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To discuss the diagnostic value of transvaginal color Doppler ultrasound on endometrial lesions. MATERIALS AND METHODS The study included 126 cases diagnosed with endometrial lesions by transvaginal color Doppler ultrasound that were examined by hysteroscopy, biopsy, and curettage pathology, and compared with pathology. RESULTS The transvaginal color Doppler ultrasound diagnosis corresponded to 92.6% (117 of 126 cases) of the pathology diagnosis. CONCLUSIONS Transvaginal color Doppler ultrasound has important diagnostic value in the case of endometrial lesions, has a high rate of detection and diagnostic on endometrial lesions, and is the best method for diagnosis of endometrial lesions.
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Lin NC, Wang HK, Yeh YC, Liu CP, Loong CC, Tsai HL, Chen CY, Chin T, Liu C. Minimization or withdrawal of immunosuppressants in pediatric liver transplant recipients. J Pediatr Surg 2015; 50:2128-33. [PMID: 26377868 DOI: 10.1016/j.jpedsurg.2015.08.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 08/24/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND We aimed to minimize the dose of tacrolimus in pediatric patients undergoing liver transplantation prospectively. METHODS Pediatric liver transplant recipients with stable graft function >1year (transplant at <1year of age), or 2years (transplant at >1year of age) post transplant were screened. After baseline graft biopsy, patients were enrolled into our protocol for elective tacrolimus dose reduction. Patients were assessed by liver function test and protocol biopsy during and after tacrolimus dose reduction. RESULTS From January 2011 to December 2012, 16 patients were recruited, of whom 15 completed follow-up at a mean 40.75±5.98months. Six patients were preliminarily weaned off tacrolimus, and five remained tacrolimus-free for more than 2years. Of the 10 patients who were not weaned off tacrolimus, six experienced seven episodes of clinical rejection. Five patients had a reduction in tacrolimus dosage to an undetectable trough level, another five to a trough level <4ng/ml, including one patient who was off the study. At the last patient visit, all of the patients had normal liver function test results with no graft loss. Three patients had low-grade graft fibrosis. The patients with metabolic liver disease (p=0.039) and who were recruited earlier after transplantation (p=0.028) were more likely to be weaned off tacrolimus. CONCLUSION Tacrolimus withdrawal is feasible in select pediatric liver transplant recipients, and long-term follow-up for these patients is suggested.
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Affiliation(s)
- Niang-Cheng Lin
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Chia-Pei Liu
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Che-Chuan Loong
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Hsin-Lin Tsai
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Cheng-Yen Chen
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Taiwai Chin
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - Chinsu Liu
- Divisions of Pediatric Surgery, and Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang-Ming University, School of Medicine, Taipei, Taiwan.
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Lin YH, Chiou HJ, Wang HK, Lai YC, Chou YH, Chang CY. Management of rotator cuff calcific tendinosis guided by ultrasound elastography. J Chin Med Assoc 2015; 78:603-9. [PMID: 26143386 DOI: 10.1016/j.jcma.2015.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 02/26/2015] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Ultrasound (US) elastography can provide information about the hardness of calcification and might help decide treatment strategy. The purpose of this study was to evaluate the hardness of the calcific area within rotator cuffs by US elastography as an aid for the selection of aspiration or fine-needle repeated puncture for the treatment of rotator cuff calcific tendinosis. METHODS This prospective study included 39 patients (32 males, 7 females; mean age, 52.9 years) who received US elastography and gray-scale ultrasonography before US-guided treatment for rotator cuff calcific tendinosis. The morphology of the calcifications was classified as arc, fragmented, nodular, and cystic types. US elastography using virtual touch imaging (acoustic radiation force impulse) technique was performed to examine the calcified region to obtain an elastogram that was graded dark, intermediate, or bright. The hardness of the calcifications were recorded, and graded as hard, sand-like, or fluid-like tactile patterns during the US-guided treatment, and the tactile patterns were compared with the results of US elastography and gray-scale ultrasonography. RESULTS Though the morphologies of the calcifications were significantly related to the tactile pattern of the needle punctures (p < 0.001), gray-scale US could not accurately demonstrate the hardness of the calcifications. With the aid of elastography, the fluid-like tactile pattern could be predicted well as a nondark pattern by elastography (p < 0.001). CONCLUSION Ultrasound elastography is a useful modality for evaluation of rotator cuff calcific tendinosis, and as an aid to guide management. If elastography shows the calcified area as a non-dark pattern, then fine-needle aspiration should be performed.
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Affiliation(s)
- Yen-Huai Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; Kin-Men Hospital, Ministry of Health and Welfare, Kin-Men, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC; National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
| | - Cheng-Yen Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; National Yang-Ming University School of Medicine, Taipei, Taiwan, ROC
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Lin YH, Chiou HJ, Wang HK, Lai YC, Chou YH, Chang CY. Comparison of the analgesic effect of xylocaine only with xylocaine and corticosteroid injection after ultrasonographically-guided percutaneous treatment for rotator cuff calcific tendonosis. J Chin Med Assoc 2015; 78:127-32. [PMID: 25456037 DOI: 10.1016/j.jcma.2014.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 05/02/2014] [Accepted: 05/17/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The analgesic effect of xylocaine alone versus xylocaine with corticosteroid injection after ultrasonographically (US)-guided treatment of rotator cuff calcific tendonosis has not been described in English literature. The aim of this study was to compare the analgesic effect of xylocaine only with xylocaine and corticosteroid following US-guided percutaneous treatment of rotator cuff calcific tendonosis. METHODS This prospective study enrolled 88 patients who were given different analgesic treatments [xylocaine only, n = 23; xylocaine with corticosteroid, n = 44; control (no xylocaine or corticosteroid), n = 21]. The assessment of a patient's painful symptoms was recorded before treatment, and 1 day, 1 week, 1 month and 3 months after treatment using the visual analogue scale (VAS). RESULTS There were no significant differences in age, sex, calcification size before and after treatment, and amount of calcification decrease after treatment, but there was a significant difference in calcification morphology among the groups (p = 0.010). General linear model analysis indicated that the three groups had no difference in pain prior to treatment. After treatment, the xylocaine only and the xylocaine with corticosteroid groups had less pain than the control group at 1 day, 1 week, and 1 month after treatment. At 3 months after treatment, the xylocaine only group had less pain than the control group (p = 0.039), and the xylocaine with corticosteroid and control groups had similar levels of pain. CONCLUSION Injection of xylocaine alone after US-guided treatment of rotator cuff calcific tendonosis provided a longer pain relief period than that of a mixture of xylocaine with corticosteroid.
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Affiliation(s)
- Yen-Huai Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; Kin-Men Hospital, Ministry of Health and Welfare, Kinmen, Taiwan, ROC
| | - Hong-Jen Chiou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yi-Hong Chou
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Cheng-Yen Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC; School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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Chang SC, Lee YW, Lai YC, Tiu CM, Wang HK, Chiou HJ, Hsu YW, Chou YH, Chang RF. Automatic slice selection and diagnosis of breast strain elastography. Med Phys 2014; 41:102902. [DOI: 10.1118/1.4894717] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Liu YP, Tiu CM, Chou YH, Hsu CY, King KL, Lai YC, Wang HK, Chiou HJ, Chang CY. Thyroid metastasis from breast cancer presenting with diffuse microcalcifications on sonography: a case report. J Clin Ultrasound 2014; 42:430-432. [PMID: 24752943 DOI: 10.1002/jcu.22137] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 11/02/2013] [Accepted: 01/14/2014] [Indexed: 06/03/2023]
Abstract
Microcalcifications are frequently associated with papillary thyroid cancers. Metastatic nodules from extrathyroid malignancies may mimic primary thyroid neoplasm on sonography, but do not present with microcalcifications. We report the case of a 45-year-old woman with a history of invasive ductal carcinomas of bilateral breasts, status post surgery and neoadjuvant chemotherapy. Four years after surgery, thyroid sonography revealed diffuse microcalcifications without nodular component. Core needle biopsy confirmed thyroid metastasis from primary breast cancer.
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Affiliation(s)
- Yi-Pei Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; National Yang Ming University, School of Medicine, Taipei, Taiwan
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Su VYF, Liu CJ, Wang HK, Wu LA, Chang SC, Perng DW, Su WJ, Chen YM, Lin EYH, Chen TJ, Chou KT. Sleep apnea and risk of pneumonia: a nationwide population-based study. CMAJ 2014; 186:415-21. [PMID: 24591276 DOI: 10.1503/cmaj.131547] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Evidence evaluating the risk of pneumonia in patients with obstructive sleep apnea is limited and mostly focuses on patients who receive continuous positive airway pressure (CPAP) therapy or on pediatric patients. We aimed to explore the risk of incident pneumonia among adults with sleep apnea, either with or without the need of CPAP therapy. METHODS From Jan. 1, 2000, we identified adult patients with sleep apnea from the Taiwan National Health Insurance Research Database. A control cohort without sleep apnea, matched for age, sex and comorbidities, was selected for comparison. The 2 cohorts were followed until Dec. 31, 2010, and observed for occurrence of pneumonia. RESULTS Of the 34,100 patients (6816 study patients and 27,284 matched controls), 2757 (8.09%) had pneumonia during a mean follow-up period of 4.50 years, including 638 (9.36%) study patients and 2119 (7.77%) controls. Kaplan-Meier analysis showed a higher incidence of pneumonia among patients with sleep apnea (log rank test, p < 0.001). After multivariate adjustment, patients with sleep apnea experienced a 1.20-fold (95% confidence interval 1.10-1.31) increase in incident pneumonia. The risk was even higher among patients who received CPAP therapy. INTERPRETATION Sleep apnea appeared to confer a higher risk for future pneumonia, possibly in a severity-dependent manner.
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Chen JL, Lee RC, Shyr YM, Wang SE, Tseng HS, Wang HK, Huang SS, Chang CY. Imaging spectrum after pancreas transplantation with enteric drainage. Korean J Radiol 2014; 15:45-53. [PMID: 24497791 PMCID: PMC3909861 DOI: 10.3348/kjr.2014.15.1.45] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 10/10/2013] [Indexed: 11/18/2022] Open
Abstract
Since the introduction of pancreas transplantation more than 40 years ago, surgical techniques and immunosuppressive regiments have improved and both have contributed to increase the number and success rate of this procedure. However, graft survival corresponds to early diagnosis of organ-related complications. Thus, knowledge of the transplantation procedure and postoperative image anatomy are basic requirements for radiologists. In this article, we demonstrate the imaging spectrum of pancreas transplantation with enteric exocrine drainage.
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Affiliation(s)
- Jian-Ling Chen
- Department of Radiology, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Rheun-Chuan Lee
- Department of Radiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan. ; National Yang-Ming University School of Medicine, Taipei 11221, Taiwan
| | - Yi-Ming Shyr
- National Yang-Ming University School of Medicine, Taipei 11221, Taiwan. ; Department of Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Sing-E Wang
- Department of Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Hsiuo-Shan Tseng
- Department of Radiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan. ; National Yang-Ming University School of Medicine, Taipei 11221, Taiwan
| | - Hsin-Kai Wang
- Department of Radiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan. ; National Yang-Ming University School of Medicine, Taipei 11221, Taiwan
| | - Shan-Su Huang
- Department of Radiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Cheng-Yen Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan. ; National Yang-Ming University School of Medicine, Taipei 11221, Taiwan
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Tsai TC, Yu PM, Tang RB, Wang HK, Chang KC. Otorrhea as a sign of medical treatment failure in acute otitis media: two cases with silent mastoiditis complicated with facial palsy. Pediatr Neonatol 2013; 54:335-8. [PMID: 23602239 DOI: 10.1016/j.pedneo.2013.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Revised: 03/14/2012] [Accepted: 03/26/2012] [Indexed: 10/26/2022] Open
Abstract
We report two children with otitis media who developed facial palsy despite prompt antibiotic therapy. Brain images revealed silent mastoiditis. Persistent otorrhea may be a cautious sign of medical treatment failure or complication of acute otitis media, including mastoiditis or facial palsy. Delayed identification of coexisting mastoiditis or hesitation over surgical intervention may lead to treatment failure and complications. Adequate intravenous antibiotics and myringotomy provide reasonable and appropriate management to prevent permanent sequelae.
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Affiliation(s)
- Tzu-Chun Tsai
- Department of Pediatrics and Otorhinolaryngology, National Yang-Ming University Hospital, Yilan, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.
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Scholbach T, Wang HK, Yang AH, Loong CC, Wu TH. Correlation of histopathologic and dynamic tissue perfusion measurement findings in transplanted kidneys. BMC Nephrol 2013; 14:143. [PMID: 23844983 PMCID: PMC3711918 DOI: 10.1186/1471-2369-14-143] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 06/27/2013] [Indexed: 02/06/2023] Open
Abstract
Background Cortical perfusion of the renal transplant can be non-invasively assessed by color Doppler ultrasonography. We performed the Dynamic Tissue Perfusion Measurement (DTPM) of the transplant’s renal cortex using color Doppler ultrasonography (PixelFlux technique), and compared the results with the histopathological findings of transplant biopsies. Methods Ninety-six DTPM studies of the renal transplant’s cortex followed by transplant biopsies were performed in 78 patients. The cortical perfusion data were compared with the parameter of peritubular inflammatory cell accumulation (PTC 0 to 3) based on Banff-classification system. Results A significant decrease of cortical perfusion could be demonstrated as the inflammatory cells accumulation in peritubular capillaries increased. Increasing peritubulitis caused a perfusion loss from central to distal layers of 79% in PTC 0, of 85% in PTC 1, of 94% in PTC 2, and of 94% in PTC 3. Furthermore, the perfusion loss due to peritubular inflammation was more prominent in the distal cortical layer. The extent of perfusion decline with increasing peritubulitis (from PTC 0 to PTC 3) was 64% in proximal 20% cortical layer (p20), 63% in proximal 50% cortical layer (p50), increased to 76% in distal 50% cortical layer (d50), and peaked at 90% in the distal 20% cortical layer (d20). For those without peritubulitis (PTC 0), the increase in the the Interstitial Fibrosis/Tubular Atrophy (IF/TA) score was accompanied by a significantly increased cortical perfusion. A Polyomavirus infection was associated with an increased cortical perfusion. Conclusions Our study demonstrated that the perfusion of the renal transplant is associated with certain pathological changes within the graft. DTPM showed a significant reduction of cortical perfusion in the transplant renal cortex related to peritubular capillary inflammation.
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Affiliation(s)
- Thomas Scholbach
- Hospital for Children and Adolescents, Chemnitz Clinics, Flemmingstr, 4, D -09116, Chemnitz, Germany.
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Tai CJ, Lee CH, Chen HC, Wang HK, Jiang MC, Su TC, Shen KH, Lin SH, Yeh CM, Chen CJ, Yeh KT, Chang CC. High nuclear expression of phosphorylated extracellular signal-regulated kinase in tumor cells in colorectal glands is associated with poor outcome in colorectal cancer. Ann Diagn Pathol 2012. [PMID: 23183114 DOI: 10.1016/j.anndiagpath.2012.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Extracellular signal-regulated kinase (ERK) is a major downstream transducer of Ras and plays an important role in transducing extracellular signals to the nuclei of cells. It is located in both the cytoplasm and the nucleus of cells. The nuclear localization of phosphorylated or activated ERK is involved in the invasive behavior of tumor cells. We studied the association between Ras mutation/ERK activation and the prognosis of patients with colorectal cancer. We analyzed 126 surgically resected colorectal cancer specimens for K-Ras mutation using direct sequencing. Activation/phosphorylation of ERK was assayed by immunohistochemistry with tissue microarray, and the staining intensity was analyzed using a semiquantitative scoring system. K-Ras mutations were detected in 32.5% (41/126) of the colorectal tumors. Colorectal glands are important functional organs in colorectal tissue and form the origin of colorectal carcinomas. Tissue microarray immunohistochemistry tests showed that tumors in colorectal cancer specimens were significantly stained for phospho-ERK (100%; 126/126), whereas nonneoplastic colorectal glands mainly showed faint phosphorylated ERK staining. High nuclear phospho-ERK expression in tumors was associated with highly invasive cancer stage and T status of the disease. Kaplan-Meier analysis showed that nuclear but not cytoplasmic phosphorylated ERK expression correlated with the patients' overall survival rate (P = .039). Colorectal adenomas including tubular adenomas and tubulovillous adenomas mainly showed weak cytoplasmic phospho-ERK expression. Our results suggest that immunohistologic analysis of phosphorylated ERK expression in colorectal glands may aid the diagnosis of colorectal cancer and that nuclear phosphorylated ERK might be a valuable prognostic marker for colorectal cancer.
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Affiliation(s)
- Cheng-Jeng Tai
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Lai YC, Hsu CY, Chou YH, Tiu CM, Tseng LM, Wang HK, Chiou HJ. Sonographic presentations of metaplastic breast cancers. J Chin Med Assoc 2012; 75:589-94. [PMID: 23158037 DOI: 10.1016/j.jcma.2012.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 03/30/2012] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Metaplastic carcinoma of the breast (MPCB) is a rare breast cancer. We reviewed sonographic findings for MPCB. METHODS Grayscale ultrasonography (US), color Doppler US (CDUS), and spectral Doppler US (SDUS) findings for 10 patients with MPCB breast were retrospectively reviewed. RESULTS The prevalence of MPCB was 3.9% among cases of breast cancer in our hospital. All patients had a rapidly growing palpable breast mass. The mean lesion size was 5.7 cm. On US, the lesion shape was most commonly gently lobulated (90%); only one showed an irregular shape (10%). The lesion shape was most commonly circumscribed (90%). Nine tumors had an abrupt boundary and one had an indistinct boundary. Lesion echogenicity was hypoechoic and very hypoechoic (40%), hypoechoic (30%), or very hypoechoic, hypoechoic, and hyperechoic (30%). All our cases had cystic parts with posterior acoustic enhancement, representing necrosis or hemorrhage. CDUS showed peripheral, central and marginal color flow signals. The resistivity index (RI) of tumor vessels in the lesions ranged from 0.7 to 1.3. The axillary lymph nodes were enlarged on US and were positive for metastasis in three cases (30%). CONCLUSION MPCB is a rare rapidly growing tumor. US findings included gently lobulated, complex mass lesion with cystic parts and posterior acoustic enhancement, representing necrosis or hemorrhage. Increased color flow signals and relative high RI of the feeding arteries were also seen.
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Affiliation(s)
- Yi-Chen Lai
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Dave JK, Halldorsdottir VG, Eisenbrey JR, Merton DA, Liu JB, Zhou JH, Wang HK, Park S, Dianis S, Chalek CL, Lin F, Thomenius KE, Brown DB, Forsberg F. Investigating the efficacy of subharmonic aided pressure estimation for portal vein pressures and portal hypertension monitoring. Ultrasound Med Biol 2012; 38:1784-98. [PMID: 22920550 PMCID: PMC3576693 DOI: 10.1016/j.ultrasmedbio.2012.06.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 06/19/2012] [Accepted: 06/29/2012] [Indexed: 05/14/2023]
Abstract
The efficacy of using subharmonic emissions from Sonazoid microbubbles (GE Healthcare, Oslo, Norway) to track portal vein pressures and pressure changes was investigated in 14 canines using either slow- or high-flow models of portal hypertension (PH). A modified Logiq 9 scanner (GE Healthcare, Milwaukee, WI, USA) operating in subharmonic mode (f(transmit): 2.5 MHz, f(receive): 1.25 MHz) was used to collect radiofrequency data at 10-40% incident acoustic power levels with 2-4 transmit cycles (in triplicate) before and after inducing PH. A pressure catheter (Millar Instruments, Inc., Houston, TX, USA) provided reference portal vein pressures. At optimum insonification, subharmonic signal amplitude changes correlated with portal vein pressure changes; r ranged from -0.82 to -0.94 and from -0.70 to -0.73 for PH models considered separately or together, respectively. The subharmonic signal amplitudes correlated with absolute portal vein pressures (r: -0.71 to -0.79). Statistically significant differences between subharmonic amplitudes, before and after inducing PH, were noted (p ≤ 0.01). Portal vein pressures estimated using subharmonic aided pressure estimation did not reveal significant differences (p > 0.05) with respect to the pressures obtained using the Millar pressure catheter. Subharmonic-aided pressure estimation may be useful clinically for portal vein pressure monitoring.
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Affiliation(s)
- Jaydev K. Dave
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Valgerdur G. Halldorsdottir
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - John R. Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Daniel A. Merton
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Jian-Hua Zhou
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Hsin-Kai Wang
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | | | | | | | - Feng Lin
- GE Global Research, Niskayuna NY 12309, USA
| | | | - Daniel B. Brown
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Liu JL, Su TC, Shen KH, Lin SH, Wang HK, Hsu JC, Chen CJ. Vaginal superficial myofibroblastoma: a rare mesenchymal tumor of the lower female genital tract and a study of its association with viral infection. Med Mol Morphol 2012; 45:110-4. [PMID: 22718297 DOI: 10.1007/s00795-011-0566-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 10/05/2011] [Indexed: 11/27/2022]
Abstract
Superficial myofibroblastoma is a rare mesenchymal tumor in the lower female genital tract. The exact etiology of superficial myofibroblastoma remains unclear. The association of viral infection and mesenchymal tumors has been well established in some particular types of soft tissue tumors. In the lower female genital tract, the intimate correlation of viral infection and tumor pathogenesis has been also proposed. We present a 59-year-old woman with postcoital bleeding for 1 month. The pelvic examination revealed a 2-cm polypoid mass mimicking leiomyoma at the vaginal fornix. Local excision was performed, and the pathological examination revealed a superficial myofibroblastoma. No tumor recurrence was noted during the 12-month follow-up. Pathological differential diagnosis of this tumor from other mesenchymal tumors is essential because of its distinct clinicopathological features. Furthermore, fluorescence in situ hybridization of human papilloma virus (HPV) and Epstein-Barr virus (EBV), as well as immunohistochemical staining of human herpesvirus 8 (HHV8), was negative in tumor cells. To the best of our knowledge, we are the first group to study the possible relationship of viral infection and the occurrence of this mesenchymal tumor. Our results suggested no association of vaginal superficial myofibroblastoma and infection with HPV, EBV, or HHV8.
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MESH Headings
- Actins/metabolism
- Antigens, CD34/metabolism
- Desmin/metabolism
- Diagnosis, Differential
- Female
- Genital Neoplasms, Female/diagnosis
- Genital Neoplasms, Female/metabolism
- Herpesvirus 4, Human/genetics
- Herpesvirus 8, Human/metabolism
- Humans
- Immunohistochemistry
- In Situ Hybridization, Fluorescence
- Leiomyoma/diagnosis
- Middle Aged
- Muscle, Smooth/chemistry
- Neoplasms, Muscle Tissue/diagnosis
- Neoplasms, Muscle Tissue/metabolism
- Papillomaviridae/genetics
- Receptors, Estrogen/metabolism
- Receptors, Progesterone/metabolism
- Vagina/chemistry
- Vagina/pathology
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Affiliation(s)
- Jing-Lan Liu
- Department of Pathology, St. Martin de Porres Hospital, Chiayi, Taiwan
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Lin WH, Tsai MT, Chen YS, Hou RCW, Hung HF, Li CH, Wang HK, Lai MN, Jeng KCG. Improvement of Sperm Production in Subfertile Boars by Cordyceps militaris Supplement. Am J Chin Med 2012; 35:631-41. [PMID: 17708629 DOI: 10.1142/s0192415x07005120] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cordyceps species have been traditionally used for the enhancement of sexual function, however, there is few direct evidence to prove this. We investigated the spermatogenic effect of Cordyceps militaris (CM) by supplementation with CM mycelium to subfertile boars. Seventeen Duroc and 12 Landrace boars (29 to 40 months old) were selected to feed with regular diet (control groups, n = 8 and 6, respectively) or diet supplemented with CM mycelium (treatment groups, n = 9 and 6, respectively) for 2 months. Semen was collected once a week. The quality of fertile sperm (normally greater than 62% of motility and 70% of normal morphology) and the quantity (semen volume, and total sperm number) were compared in these boars. The result showed that sperm production was enhanced significantly at the end of first month ( p < 0.05), peaked at the second month ( p < 0.01) of supplementation with CM and was maintained for 2 weeks after stopping the treatment ( p < 0.01). Plasma cordycepin concentration was detected in boars supplemented with CM but not in the controls. More importantly, the percentages of motile sperm cells and sperm morphology were also improved significantly in most of treated boars during the second month of supplementation ( p < 0.01) and 2 weeks after the treatment ( p < 0.05) as compared to their initial values. These results indicate that supplementation with CM mycelium improves sperm quality and quantity in subfertile boars and may partly support the role of Cordyceps in sexual enhancement.
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Affiliation(s)
- Wen-Hung Lin
- Fo Guang College of Humanities and Social Sciences, Ilan, Taiwan
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Chien CC, Chou YH, Tiu CM, Lin CC, Yang WC, Wang HK, Lai YC, Chiou HJ. Transient Hyperechoic Renal Cortex Caused by Dehydration and Induced Acute Renal Failure in Two Patients with Intra-Abdominal Infection. J Med Ultrasound 2012. [DOI: 10.1016/j.jmu.2012.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Chu PY, Liou JH, Lin YM, Chen CJ, Chen MK, Lin SH, Yeh CM, Wang HK, Maa MC, Leu TH, Chang NW, Hsu NC, Yeh KT. Expression of Eps8 correlates with poor survival in oral squamous cell carcinoma. Asia Pac J Clin Oncol 2012; 8:e77-81. [PMID: 22897151 DOI: 10.1111/j.1743-7563.2011.01459.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Epidermal growth factor receptor pathway substrate 8 (Eps8) is a signaling protein implicated in the development of many human cancers including oral squamous cell carcinoma (OSCC). This study examined the expression of Eps8 and assessed its significance in patients with OSCC. METHODS Immunohistochemical staining for Eps8 was conducted in 205 cases of OSCC collected over 7 years. The results were analyzed and correlated with patients' clinical outcomes. RESULTS We identified Eps8 expression in 186 of the 205 cases of OSCC (91%) and the aberrance occurred primarily in the cytoplasm of OSCC cells. Univariate analysis revealed that patients with Eps8 expression had significantly poorer 5-year overall survival (OS) than those without it (43% vs 74%, P = 0.014). Eps8 expression was also identified as an independent predictive factor for poorer OS by a multivariate analysis in regression modeling (P = 0.021, HR = 2.7). A Kaplan-Meier analysis showed that patients with positive Eps8 expression had a significantly poorer OS than patients with negative/low Eps8 expression (P = 0.038). The difference in disease-free survival between positive Eps8 expression and negative/low Eps8 expression nearly reached statistical significance (P = 0.051). CONCLUSION Eps8 is frequently expressed in OSCC. The aberrant expression of Eps8 closely correlated with poor survival in patients with OSCC.
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Affiliation(s)
- Pei-Yi Chu
- Department of Pathology, St Martin De Porres Hospital, Chiayi
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Xia JX, Xiong JX, Wang HK, Duan SM, Ye JN, Hu ZA. Presynaptic inhibition of GABAergic synaptic transmission by adenosine in mouse hypothalamic hypocretin neurons. Neuroscience 2011; 201:46-56. [PMID: 22119641 DOI: 10.1016/j.neuroscience.2011.11.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 11/08/2011] [Accepted: 11/08/2011] [Indexed: 10/15/2022]
Abstract
Hypocretin neurons in the lateral hypothalamus, a new wakefulness-promoting center, have been recently regarded as an important target involved in endogenous adenosine-regulating sleep homeostasis. The GABAergic synaptic transmissions are the main inhibitory afferents to hypocretin neurons, which play an important role in the regulation of excitability of these neurons. The inhibitory effect of adenosine, a homeostatic sleep-promoting factor, on the excitatory glutamatergic synaptic transmissions in hypocretin neurons has been well documented, whether adenosine also modulates these inhibitory GABAergic synaptic transmissions in these neurons has not been investigated. In this study, the effect of adenosine on inhibitory postsynaptic currents (IPSCs) in hypocretin neurons was examined by using perforated patch-clamp recordings in the acute hypothalamic slices. The findings demonstrated that adenosine suppressed the amplitude of evoked IPSCs in a dose-dependent manner, which was completely abolished by 8-cyclopentyltheophylline (CPT), a selective antagonist of adenosine A1 receptor but not adenosine A2 receptor antagonist 3,7-dimethyl-1-(2-propynyl) xanthine. A presynaptic origin was suggested as following: adenosine increased paired-pulse ratio as well as reduced GABAergic miniature IPSC frequency without affecting the miniature IPSC amplitude. Further findings demonstrated that when the frequency of electrical stimulation was raised to 10 Hz, but not 1 Hz, a time-dependent depression of evoked IPSC amplitude was detected in hypocretin neurons, which could be partially blocked by CPT. However, under a higher frequency at 100 Hz stimulation, CPT had no action on the depressed GABAergic synaptic transmission induced by such tetanic stimulation in these hypocretin neurons. These results suggest that endogenous adenosine generated under certain stronger activities of synaptic transmissions exerts an inhibitory effect on GABAergic synaptic transmission in hypocretin neurons by activation of presynaptic adenosine A1 receptors, which may finely regulate the excitability of these neurons as well as eventually modulate the sleep-wakefulness.
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Affiliation(s)
- J X Xia
- Department of Physiology, Third Military Medical University, 30 Gaotanyan Street, Chongqing, 400038, China
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