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Takeuchi M, Matsuzaki K, Harada M. Endometriosis, a common but enigmatic disease with many faces: current concept of pathophysiology, and diagnostic strategy. Jpn J Radiol 2024:10.1007/s11604-024-01569-5. [PMID: 38658503 DOI: 10.1007/s11604-024-01569-5] [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: 01/26/2024] [Accepted: 04/06/2024] [Indexed: 04/26/2024]
Abstract
Endometriosis is a benign, common, but controversial disease due to its enigmatic etiopathogenesis and biological behavior. Recent studies suggest multiple genetic, and environmental factors may affect its onset and development. Genomic analysis revealed the presence of cancer-associated gene mutations, which may reflect the neoplastic aspect of endometriosis. The management has changed dramatically with the development of fertility-preserving, minimally invasive therapies. Diagnostic strategies based on these recent basic and clinical findings are reviewed. With a focus on the presentation of clinical cases, we discuss the imaging manifestations of endometriomas, deep endometriosis, less common site and rare site endometriosis, various complications, endometriosis-associated tumor-like lesions, and malignant transformation, with pathophysiologic conditions.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-Cho, Tokushima, 7708503, Japan.
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, Sanuki City, ShidoKagawa, 1314-17692193, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-Cho, Tokushima, 7708503, Japan
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Takeuchi M, Matsuzaki K, Bando Y, Harada M. MR Imaging Findings of Uterine Adenomatoid Tumors. Magn Reson Med Sci 2024; 23:127-135. [PMID: 36697028 PMCID: PMC11024713 DOI: 10.2463/mrms.mp.2022-0067] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/10/2022] [Indexed: 01/24/2023] Open
Abstract
PURPOSE Adenomatoid tumor is a rare benign genital tract neoplasm of mesothelial origin. Uterine adenomatoid tumors occur in the outer myometrium and may mimic leiomyomas. Because hormonal treatment is not applicable to adenomatoid tumors and laparoscopic enucleation is not easy as myomectomy, it is important to differentiate adenomatoid tumors from leiomyomas for the adequate treatment. The purpose of this study is to evaluate the MRI findings of adenomatoid tumor for the differentiation from leiomyoma. METHODS MRI findings of surgically proven 10 uterine adenomatoid tumors in 9 women were retrospectively evaluated with correlation to histopathological findings. RESULTS All 10 tumors appeared as solid myometrial masses and showed heterogeneous signal intensity with admixture of partially ill-defined slight high-intensity areas containing abundant tubular tumor cells and well-defined myoma-like low-intensity areas reflecting smooth muscle hypertrophy on T2WI including 4 lesions with peripheral ring-like high intensity. High-intensity areas on T2WI tended to show high intensity on diffusion-weighted imaging (DWI) with relatively high apparent diffusion coefficient (ADC), suggesting T2 shine-through effect due to abundant tubules. Intra-tumoral hemorrhage revealed on MRI was rare. Early intense contrast-enhanced areas on dynamic contrast-enhanced study were observed dominantly within the high-intensity areas but rarely within the low-intensity areas on T2WI. CONCLUSION The outer myometrial mass with the admixture of well-defined low- and ill-defined high-intensity areas on T2WI may be suggestive of adenomatoid tumor. Peripheral ring-like high intensity on T2WI and DWI may also be suggestive. Dynamic contrast-enhanced MR study may be helpful for the differentiation from leiomyoma.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, Tokushima, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, Sanuki, Kagawa, Japan
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital, Tokushima, Tokushima, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, Tokushima, Tokushima, Japan
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Matsuzaki K, Suzuki H, Kikuchi M, Koike K, Komatsu H, Takahashi K, Narita I, Okada H. Current treatment status of IgA nephropathy in Japan: a questionnaire survey. Clin Exp Nephrol 2023; 27:1032-1041. [PMID: 37646957 PMCID: PMC10654181 DOI: 10.1007/s10157-023-02396-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND In 2020, the Committee of Clinical Practical Guideline for IgA Nephropathy (IgAN) revised the clinical practice guidelines. Herein, we conducted a questionnaire survey to assess the potential discrepancies between clinical practice guidelines and real-world practice in Japan. METHODS A web-based survey of members of the Japanese Society of Nephrology was conducted between November 15 and December 28, 2021. RESULTS A total of 217 members (internal physicians: 203, pediatricians: 14) responded to the questionnaire. Of these respondents, 94.0% answered that the clinical practice guidelines were referred to "always" or "often." Approximately 66.4% respondents answered that histological grade (H-Grade) derived from the "Clinical Guidelines for IgA nephropathy in Japan, 3rd version" and the "Oxford classification" were used for pathological classification. Moreover, 73.7% respondents answered that the risk grade (R-grade) derived from the "Clinical Guidelines for IgA nephropathy in Japan, 3rd version" was referred to for risk stratification. The prescription rate of renin-angiotensin system blockers increased based on urinary protein levels (> 1.0 g/day: 88.6%, 0.5-1.0 g/day: 71.0%, < 0.5 g/day: 25.0%). Similarly, the prescription rate of corticosteroids increased according to proteinuria levels (> 1.0 g/day: 77.8%, 0.5-1.0 g/day: 52.8%, < 0.5 g/day: 11.9%). The respondents emphasized on hematuria when using corticosteroids. In cases of hematuria, the indication rate for corticosteroids was higher than in those without hematuria, even if the urinary protein level was 1 g/gCr or less. Few severe infectious diseases or serious deterioration in glycemic control were reported during corticosteroid use. CONCLUSION Our questionnaire survey revealed real-world aspects of IgAN treatment in Japan.
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Affiliation(s)
- K Matsuzaki
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - H Suzuki
- Department of Nephrology, Juntendo University Urayasu Hospital, Chiba, Japan.
| | - M Kikuchi
- Department of Nephrology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - K Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - H Komatsu
- Center for Medical Education and Career Development, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - K Takahashi
- Department of Biomedical Molecular Sciences, Fujita Health University School of Medicine, Aichi, Japan
| | - I Narita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - H Okada
- Department of Nephrology, Saitama Medical University, Saitama, Japan
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Ma E, Fukasawa M, Ohira T, Yasumura S, Suzuki T, Furuyama A, Kataoka M, Matsuzaki K, Sato M, Hosoya M. Lifestyle behaviour patterns in the prevention of type 2 diabetes mellitus: the Fukushima Health Database 2015-2020. Public Health 2023; 224:98-105. [PMID: 37742586 DOI: 10.1016/j.puhe.2023.08.026] [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: 06/06/2023] [Revised: 07/23/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023]
Abstract
OBJECTIVES Lifestyle behaviours associated with the incidence of type 2 diabetes mellitus (T2DM) need further clarification using health insurance data. STUDY DESIGN This is a cohort study. METHODS In 2015, 193,246 participants aged 40-74 years attended the specific health checkups and were observed up to 2020 in Fukushima, Japan. Using the principal component analysis, we identified two patterns from ten lifestyle behaviour questions, namely, the "diet-smoking" pattern (including smoking, alcohol drinking, skipping breakfast, eating fast, late dinner, and snacking) and the "physical activity-sleep" pattern (including physical exercise, walking equivalent activity, walking fast, and sufficient sleep). Then, individual pattern scores were calculated; the higher the scores, the healthier the behaviours. RESULTS The accumulative incidence rate of T2DM was 630.5 in men and 391.9 in women per 100,000 person-years in an average of 4 years of follow-up. Adjusted for the demographic and cardiometabolic factors at the baseline, the hazard ratio (95% confidence interval) of the highest versus lowest quartile scores of the "diet-smoking" pattern for T2DM risk was 0.82 (0.72, 0.92; P for trend = 0.002) in men and 0.87 (0.76, 1·00; P for trend = 0.034) in women; that of the "physical activity-sleep" pattern was 0.92 (0.82, 1·04; P for trend = 0.0996) in men and 0.92 (0.80, 1·06; P for trend = 0.372) in women. The "physical activity-sleep" pattern showed a significant inverse association in non-overweight men. CONCLUSIONS Lifestyle behaviour associated with a healthy diet and lack of smoking may significantly lower the risk of T2DM in middle-aged Japanese adults.
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Affiliation(s)
- E Ma
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan.
| | - M Fukasawa
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - T Ohira
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; Radiation Medical Science Center for Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - S Yasumura
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Radiation Medical Science Center for Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Public Health, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - T Suzuki
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Computer Science and Engineering, The University of Aizu, Fukushima 965-8580, Japan
| | - A Furuyama
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - M Kataoka
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - K Matsuzaki
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - M Sato
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - M Hosoya
- Health Promotion Center, Fukushima Medical University, Fukushima 960-1295, Japan; Radiation Medical Science Center for Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan; Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Takeuchi M, Matsuzaki K, Bando Y, Harada M. Dynamic contrast-enhanced MR imaging of uterine endometrial carcinoma with/without squamous differentiation. Abdom Radiol (NY) 2023; 48:2494-2502. [PMID: 37157002 DOI: 10.1007/s00261-023-03934-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/10/2023]
Abstract
PURPOSE Endometrial carcinoma with strong enhancement on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is suggestive of high-grade type II endometrial carcinoma. However, low-grade type I endometrial carcinoma may also sometimes show strong enhancement. We hypothesized that squamous differentiation would contribute to the strong enhancement at the early phase on DCE-MRI-like uterine cervical squamous cell carcinoma and compared the DCE-MRI findings of endometrial carcinoma with and without squamous differentiation. METHODS DCE-MRI of endometrial carcinoma including 41 low-grade type I endometrial carcinomas without squamous differentiation (LG), 39 low-grade type I endometrial carcinomas with squamous differentiation (LGSD), and 20 high-grade type II endometrial carcinomas (HG) was retrospectively evaluated. RESULTS Significant difference in the time-intensity curves was found between LG and HG and LG and LGSD, whereas no significant difference was seen between HG and LGSD. Curve type 3 (initial signal rise which is steeper than that of the myometrium) was more frequent in HG (60%) and LGSD (77%) than in LG (34%). CONCLUSION It should be recognized as a pitfall that high-grade type II endometrial carcinoma and low-grade type I endometrial carcinoma with squamous differentiation may show similar early strong enhancement on DCE-MRI.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-Cho, Tokushima, 7708503, Japan.
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, 1314-1, Shido, Sanuki-City, Kagawa, 7692193, Japan
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital, 2-50-1, Kuramoto-Cho, Tokushima, 7708503, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-Cho, Tokushima, 7708503, Japan
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Gong L, Holbourn A, Kuhnt W, Opdyke B, Zhang Y, Ravelo AC, Zhang P, Xu J, Matsuzaki K, Aiello I, Beil S, Andersen N. Middle Pleistocene re-organization of Australian Monsoon. Nat Commun 2023; 14:2002. [PMID: 37037802 PMCID: PMC10086051 DOI: 10.1038/s41467-023-37639-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 03/24/2023] [Indexed: 04/12/2023] Open
Abstract
The sensitivity of the Australian Monsoon to changing climate boundary conditions remains controversial due to limited understanding of forcing processes and past variability. Here, we reconstruct austral summer monsoonal discharge and wind-driven winter productivity across the Middle Pleistocene Transition (MPT) in a sediment sequence drilled off NW Australia. We show that monsoonal precipitation and runoff primarily responded to precessional insolation forcing until ~0.95 Ma, but exhibited heightened sensitivity to ice volume and pCO2 related feedbacks following intensification of glacial-interglacial cycles. Our records further suggest that summer monsoon variability at the precessional band was closely tied to the thermal evolution of the Indo-Pacific Warm Pool and strength of the Walker circulation over the past ~1.6 Myr. By contrast, productivity proxy records consistently tracked glacial-interglacial variability, reflecting changing rhythms in polar ice fluctuations and Hadley circulation strength. We conclude that the Australian Monsoon underwent a major re-organization across the MPT and that extratropical feedbacks were instrumental in driving short- and long-term variability.
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Affiliation(s)
- Li Gong
- Institute of Geosciences, Christian-Albrechts-University, D-24118, Kiel, Germany
| | - Ann Holbourn
- Institute of Geosciences, Christian-Albrechts-University, D-24118, Kiel, Germany.
| | - Wolfgang Kuhnt
- Institute of Geosciences, Christian-Albrechts-University, D-24118, Kiel, Germany
| | - Bradley Opdyke
- Research School of Earth Sciences, Australian National University, Mills Road, Acton, ACT, 2601, Australia
| | - Yan Zhang
- Ocean Sciences Department, University of California, 1156 High Street, Santa Cruz, CA, 95064, USA
| | - Ana Christina Ravelo
- Ocean Sciences Department, University of California, 1156 High Street, Santa Cruz, CA, 95064, USA
| | - Peng Zhang
- Institute of Cenozoic Geology and Environment, State Key Laboratory of Continental Dynamics and Department of Geology, Northwest University, 710069, Xi'an, China
| | - Jian Xu
- Institute of Cenozoic Geology and Environment, State Key Laboratory of Continental Dynamics and Department of Geology, Northwest University, 710069, Xi'an, China
| | - Kenji Matsuzaki
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ivano Aiello
- Department of Geological Oceanography, Moss Landing Marine Laboratories, San Jose State University, Moss Landing, CA, 95039, USA
| | - Sebastian Beil
- Institute of Geosciences, Christian-Albrechts-University, D-24118, Kiel, Germany
| | - Nils Andersen
- Leibniz Laboratory for Radiometric Dating and Stable Isotope Research, Christian-Albrechts-University Kiel, D-24118, Kiel, Germany
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Matsuzaki K, Sugiki H, Takigami K, Matsuura H. [An Anastomotic Aneurysm Thirty Years After Open Surgery of the Descending Thoracic Aorta:Report of a Case]. Kyobu Geka 2022; 75:1108-1111. [PMID: 36539228] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
An 86-year-old man was hospitalized urgently to our department because of his worsening hemoptysis. He had undergone open thoracic aortic grafting for the Stanford type B chronic aortic dissecting aneurysm 30 years earlier. Contrast enhanced computed tomography (CT) revealed the distal anastomotic aneurysm, leakage of the contrast medium around the distal anastomotic site. We urgently performed thoracic endovascular aneurysm repair( TEVAR) for the distal anastomotic aneurysm. TEVAR was done under local anesthesia because of his poor respiratory condition due to hemoptysis. He recovered well without hemoptysis. Patients after open aortic surgery are expected to survive longer. Thus, special attention should be paid to the occurrence of anastomotic aneurysms.
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Affiliation(s)
- Kenji Matsuzaki
- Department of Cardiovascular Surgery, NTT East Medical Center Sapporo, Sapporo, Japan
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Takeuchi M, Matsuzaki K, Bando Y, Harada M. Magnetic resonance imaging characteristics of polypoid endometriosis and review of the literature. J Obstet Gynaecol Res 2022; 48:2583-2593. [DOI: 10.1111/jog.15367] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 06/05/2022] [Accepted: 07/06/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology Tokushima University Tokushima Japan
| | - Kenji Matsuzaki
- Department of Radiological Technology Tokushima Bunri University Sanuki Kagawa Japan
| | - Yoshimi Bando
- Division of Pathology Tokushima University Hospital Tokushima Japan
| | - Masafumi Harada
- Department of Radiology Tokushima University Tokushima Japan
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Kida T, Matsuzaki K, Yokota I, Kawase N, Masatoshi K, Inoue H, Yuji K, Kaneshita S, Inoue T, Wada M, Kohno M, Kawahito Y, Iwami T. POS0875 LATENT TRAJECTORY MODELING OF PULMONARY ARTERY PRESSURE IN SYSTEMIC SCLEROSIS: A RETROSPECTIVE COHORT STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundSystemic sclerosis (SSc) is an autoimmune disease that is characterized by systemic vasculopathy and fibrosis. Pulmonary hypertension (PH), defined as elevated pulmonary arterial pressure (PAP), is one of the leading causes of death of SSc1. In recent years, various therapies have been developed to target each of the pathogenesis of SSc – autoimmunity, vasculopathy, and fibrosis. Accordingly, treatment strategies based on risk stratification for PH progression are aspired; however, prediction of changes in PAP in diverse patients with SSc has not been established2.ObjectivesTo visualize the patterns of PAP elevation in SSc and to identify the clinical characteristics of each trajectory, by applying latent trajectory modeling for PAP measured repeatedly by echocardiography.MethodsThis was a multicenter, retrospective cohort study conducted at four referral hospitals in Kyoto, Japan. Patients with SSc who visited the study site between April 2008 and March 2021 and had at least three echocardiographic measurements of systolic pulmonary arterial pressure (sPAP) were included in this study. Follow-up concluded in March 2021. A group-based trajectory model3 was applied to the change in sPAP over time, and individual patients were classified into distinct subgroups that followed similar trajectories. The number and shape of the trajectories were estimated based on adequacy, goodness of fit, parsimony, and interpretability of the model. Clinical plausibility was assessed by comparing PH-free survival, i.e., time to either PH or death, for each trajectory. Multinomial logistic regression analysis was performed for baseline clinical characteristics associated with trajectory assignment.ResultsA total of 236 patients with a total of 1097 sPAP measurements were included. We identified five trajectories following the quadratic function as “rapid progression (n=9, 3.8%)”, “early elevation (n=30, 12.7%)”, “mid elevation (n=54, 22.9%)”, “late elevation (n=24, 10.2%)”, and “low stable (n=119, 50.4%)”. Each trajectory, in this order, showed earlier elevation of sPAP and shorter PH-free survival (Figure 1). In the multinomial logistic regression (with the “low stable” as reference), cardiac involvement was associated with the “rapid progression” (adjusted odds ratio [OR] 28.9, 95% confidence interval [CI] 3.21–259.5), diffuse cutaneous SSc was associated with the “early elevation” (OR 4.08, 95% CI 1.27–13.1), anti-centromere antibody positive was associated with the “mid elevation” (OR 4.50, 95% CI 1.11–18.2), and older age of onset was associated with the above three trajectories.ConclusionThe pattern of changes in pulmonary artery pressure over time in SSc can be classified into five distinct trajectories. Each trajectory differed in baseline clinical characteristics and outcomes.References[1]Pokeerbux MR, et al. Survival and prognosis factors in systemic sclerosis: data of a French multicenter cohort, systematic review, and meta-analysis of the literature. Arthritis Res Ther. 2019;21(1):86.[2]Denton CP, et al. Systemic sclerosis. Lancet. 2017;390(10103):1685-1699.[3]Nagin DS, et al. Group-based trajectory modeling in clinical research. Annu Rev Clin Psychol. 2010;6:109-38.Disclosure of InterestsNone declared
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AOKI R, NIhei Y, Matsuzaki K, Suzuki H, Kihara M, Yokoo T, Kashihara N, Narita I, Suzuki Y. POS-887 GROSS HEMATURIA AFTER SARS-CoV-2 VACCINATION: QUESTIONNAIRE SURVEY IN JAPAN. Kidney Int Rep 2022. [PMCID: PMC8854879 DOI: 10.1016/j.ekir.2022.01.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Takeuchi M, Matsuzaki K, Harada M. The feasibility of reduced field-of-view diffusion-weighted imaging in evaluating bladder invasion of uterine cervical cancer. Br J Radiol 2022; 95:20210692. [PMID: 34705531 PMCID: PMC8722230 DOI: 10.1259/bjr.20210692] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES Uterine cervical cancer with bladder mucosal invasion is classified as FIGO stage IVA with poor prognosis. MRI can rule out the bladder invasion and skipping cystoscopy may be possible; however, high false-positive rate may be problematic. The purpose of this study is to evaluate the diagnostic performance of reduced field-of-view (FOV) diffusion-weighted imaging (DWI) in evaluating bladder mucosal invasion of cervical cancer. METHODS 3T MRI including T2WI and reduced FOV DWI in 15 women with histologically proven cervical cancer (two stage IIIB, six stage IVA, seven stage IVB) were retrospectively evaluated compared with cystoscopic findings. RESULTS Cystoscopy revealed mucosal invasion in 13 of 15 cases. The border between the tumor and the bladder wall was unclear on T2WI and clear on reduced FOV DWI in all 15 cases. The diagnosis of mucosal invasion on reduced FOV DWI had a sensitivity of 100%, specificity of 50%, accuracy of 93%, PPV of 93%, and NPV of 100%. CONCLUSIONS Addition of reduced FOV DWI may improve the staging accuracy of MRI for cervical cancer in assessing the bladder mucosal invasion. ADVANCES IN KNOWLEDGE Reduced FOV DWI may improve the staging accuracy of cervical cancer in assessing bladder mucosal invasion with high NPV and PPV, which may be helpful for avoiding unnecessary cystoscopy.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, Kagawa, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, Tokushima, Japan
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Takeuchi M, Matsuzaki K, Harada M. Clinical value of N-acetyl mucinous compounds and lipid peaks in differentiating benign and malignant ovarian mucinous tumors by MR spectroscopy. Clin Imaging 2021; 78:127-135. [PMID: 33780785 DOI: 10.1016/j.clinimag.2021.03.022] [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: 11/03/2020] [Revised: 03/14/2021] [Accepted: 03/16/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE To retrospectively evaluate the clinical significance of the peaks of N-acetyl mucinous compounds (NAMC) at 2 ppm and lipid at 1.3 ppm in in-vivo proton magnetic resonance (MR) spectroscopy for distinguishing benign and malignant mucinous tumors in patients with ovarian masses. METHODS MR spectroscopy was performed in patients with pathologically diagnosed mucinous ovarian tumors at 3 T MRI system. The peaks of NAMC, lipid, and total choline compounds (tCho) were classified into three classes in comparison with the noise level by visual estimation. The NAMC concentration was quantified relative to unsuppressed water by using LCModel analysis. RESULTS A total of 27 ovarian mucinous tumors in 27 patients were included in this study. The NAMC peak was observed in all 27 mucinous tumors, and the lipid peak was observed in 14 of 27 tumors: 1 of 9 benign tumors (11%), and 13 of 18 malignant tumors (11 borderline malignancies and 7 carcinomas) (72%). The presence of the lipid peak for the diagnosis of malignant mucinous tumor showed generally better diagnostic ability than MR imaging, with a sensitivity of 72%, specificity of 89%, accuracy of 78%, PPV of 93%, and NPV of 62%. The concentration of the NAMC in malignant mucinous tumors tended to be higher than that in benign mucinous tumors, but there was no statistically significant difference. CONCLUSIONS The bimodal peaks of NAMC and lipid are suggestive of malignant mucinous tumors, and the presence of the lipid peak may be useful in distinguishing benign from malignant ovarian mucinous tumors.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima zip: 7708503, Japan.
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, 1314-1, Shido, Sanuki-city, Kagawa zip: 7692193, Japan.
| | - Masafumi Harada
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima zip: 7708503, Japan.
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Yoneda N, Shikama T, Hanada K, Mori S, Onchi T, Kuroda K, Hasuo M, Ejiri A, Matsuzaki K, Osawa Y, Peng Y, Kawamata Y, Sakamoto S, Idei H, Ido T, Nakamura K, Nagashima Y, Ikezoe R, Hasegawa M, Higashijima A, Nagata T, Shimabukuro S. Toroidal flow measurements of impurity ions in QUEST ECH plasmas using multiple viewing chords emission spectroscopy. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.100905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Putra AA, Watari T, Hatamoto M, Konda T, Matsuzaki K, Kurniawan TH, Yamaguchi T. Performance of real-scale anaerobic baffled reactor-swim bed tank system in treating fishmeal wastewater. J Environ Sci Health A Tox Hazard Subst Environ Eng 2020; 55:1415-1423. [PMID: 32909871 DOI: 10.1080/10934529.2020.1802978] [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: 01/28/2020] [Revised: 07/20/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
This study evaluates the process performance of a real-scale anaerobic baffled reactor (ABR) coupled with swim bed tank (SBT) as an aerobic post-treatment process in treating fishmeal wastewater discharged from an actual fishmeal processing factory in Bali, Indonesia. The industrial wastewater released from the aforementioned factory contains high concentrations of organic COD (more than 10 g COD·L-1) and ammonia (100 to 200 mg-N·L-1). During the study period, ABR demonstrated a high organic removal of 95.7 ± 2.9%, with an organic loading rate of 2.1 ± 1.3 kg COD·m-3·day-1. Furthermore, the average total COD influent and effluent of the proposed system were 37,800 ± 15,000 mg COD·L-1 and 435 ± 113 mg COD·L-1, respectively, during the entire experimental period. Based on the determination of volatile fatty acids (VFAs) and microbial community analysis of the ABR-retained sludge, the first and second columns of the ABR were utilized as hydrolysis zones and the third column functioned as an acidification zone. The remaining columns were used for methane production and as final removal zones. The results concluded that this system has the potential to treat fishmeal wastewater under onsite industrial conditions.
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Affiliation(s)
- Alqadri Asri Putra
- Department of Energy and Environmental Science, Nagaoka University of Technology, Nagaoka, Japan
- Department of Environmental Engineering, Faculty of Engineering, Andalas University, Padang, Indonesia
| | - Takahiro Watari
- Department of Civil and Environmental Engineering, Nagaoka University of Technology, Nagaoka, Japan
- Department of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Masashi Hatamoto
- Department of Civil and Environmental Engineering, Nagaoka University of Technology, Nagaoka, Japan
| | | | - Kenji Matsuzaki
- Overseas Business Department, Nishihara Neo Co., Ltd, Tokyo, Japan
| | | | - Takashi Yamaguchi
- Department of Science of Technology Innovation, Nagaoka University of Technology, Nagaoka, Japan
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15
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Takeuchi M, Matsuzaki K, Harada M. Susceptibility-weighted MR sequence for the evaluation of ovarian masses with torsion. Br J Radiol 2020; 93:20200110. [PMID: 32208978 DOI: 10.1259/bjr.20200110] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Adnexal torsion is a rare gynecologic emergency caused by twisting of an adnexal mass. Twisted vascular pedicle is the most specific imaging finding for adnexal torsion, however, identification of twisted vascular pedicle can be challenging. The purpose of this study is to evaluate the feasibility of susceptibility-weighted MR sequence (SWS) for the diagnosis of adnexal torsion. METHODS MR imaging including SWS (SWAN: susceptibility-weighted angiography) of surgically proven four benign ovarian masses with torsion (one acute and three subacute to chronic torsions) were retrospectively evaluated. Three cystic masses and one solid mass were included in this study. RESULTS High signal intensity venous thrombus within the twisted vascular pedicle on T1-weighted imaging (T1WI) was detected in three lesions with subacute to chronic torsion (75%) but not in one lesion with acute torsion, whereas susceptibility-induced signal voids within the twisted vascular pedicle on SWAN were detected in all four lesions (100%). CONCLUSION The demonstration of venous thrombus in the twisted vascular pedicle by SWS may be diagnostic for adnexal torsion. ADVANCES IN KNOWLEDGE SWS can detect blood products sensitively and can reveal venous thrombus in the twisted vascular pedicle, which may be helpful for the diagnosis of adnexal torsion.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, 1314-1, Shido, Sanuki-city Kagawa, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima, Japan
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16
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Takeuchi M, Matsuzaki K, Bando Y, Harada M. Reduced field-of-view diffusion-weighted MR imaging for assessing the local extent of uterine cervical cancer. Acta Radiol 2020; 61:267-275. [PMID: 31154804 DOI: 10.1177/0284185119852733] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background Recently, the evaluation of the tumor size and local extension of early-stage uterine cervical cancer on magnetic resonance imaging is important for the accurate clinical staging and to determine the indication of less extensive surgery such as fertility sparing radical trachelectomy. Purpose To compare the diagnostic ability of reduced field-of-view diffusion-weighted imaging with those of three-dimensional (3D) contrast-enhanced T1-weighted imaging and T2-weighted imaging for assessing the tumor margin delineation and local extent of uterine cervical cancer. Material and Methods 3T magnetic resonance images, including T2-weighted imaging, reduced field-of-view diffusion-weighted imaging, and 3D contrast-enhanced T1-weighted imaging, in 27 women with surgically proven cervical cancer (19 FIGO stage IB1, 3 IB2, and 5 IIA1) were retrospectively evaluated. Tumor margins and local tumor extent, including the presence of invasion to parametrium and vagina were evaluated on both sagittal and oblique axial (short axis) images; the results were compared with histologically confirmed tumor extension. Results Reduced field-of-view diffusion-weighted imaging diagnosed the tumor margins, which was more accurate than T2-weighted imaging ( P<0.001) and slightly better than 3D contrast-enhanced T1-weighted imaging. Reduced field-of-view diffusion-weighted imaging could define the tumor margins well even in small lesions (≤ 20 mm). Histological examination revealed parametrial invasion in two cases (clinically under-staged) and vaginal invasion in four cases. Reduced field-of-view diffusion-weighted imaging could demonstrate local extension of all lesions, which was more accurate than clinical examination and T2-weighted imaging. Conclusion Addition of reduced field-of-view diffusion-weighted imaging may improve the staging accuracy of magnetic resonance imaging for cervical cancer in assessing the local tumor extent.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, Tokushima University, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University, Kagawa, Japan
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University, Tokushima, Japan
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17
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Ezure T, Matsuzaki K, Nobuhiko O. 622 “Fibroblast Network” as a Critical Regulator of Skin Aging - Establishment of 3D Skin Structure Analysis Technology on Computer. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Kawarabayashi J, Matsuzaki K, Ujita H. Recent activities in the field of reactor instrumentation and control human-machine system in 2017. J NUCL SCI TECHNOL 2019. [DOI: 10.1080/00223131.2019.1583612] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Kenji Matsuzaki
- Toshiba Energy Systems & Solutions Corporation, Kanagawa, Japan
| | - Hiroshi Ujita
- Plant Operation Analysis Department, Japan Nuclear Safety Institute, Tokyo, Japan
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19
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Matsuzaki K, Takigami K, Matsuura H, Kuzume M, Hamaguchi S, Noriyasu K, Kawashima N, Miyamoto N. [Infected Thoracic Aortic Aneurysm Secondary to the Purulent Pericarditis;Report of a Case]. Kyobu Geka 2018; 71:1023-1026. [PMID: 30449871] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A 69-year-old man was hospitalized urgently to the department of cardiology, with the progressive general malaise. On admission, his blood pressure was 80/42 mmHg, his white cell count 13,700/µl, and C-reactive protein 25.55 mg/dl suggesting existence of aggressive infection with impaired circulation. Massive pericardial effusion was detected in echocardiography. Pericardial drainage was undergone promptly. There was drainage of 700 ml and the property was purulent. Pneumococcus was detected by the culture test of the pericardial fluid. Antibiotic administration was started by a diagnosis of the purulent pericarditis. His general condition was improved. However, a rapidly expanding saccular aneurysm was found in a descending thoracic aorta by computed tomography( CT). As an infected thoracic aortic aneurysm secondary to the purulent pericarditis, we performed thoracic endovascular aneurysm repair (TEVAR). The intravenous administration of antibiotics was continued for 2 weeks after TEVAR, which was followed by oral antibiotic administration for 1 year. The aneurysm completely disappeared by CT, 10 months after TEVAR. In case with an infected thoracic aortic aneurysm, TEVAR can be a 1st choice of treatment, depending on a causative organism and the morphology of the aneurysm.
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Affiliation(s)
- Kenji Matsuzaki
- Department of Cardiovascular Surgery, NTT Higashi Nihon Sapporo Hospital, Sapporo, Japan
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20
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Abstract
Purpose: Red degeneration of uterine leiomyoma (RDL) is a hemorrhagic infarction caused by peripheral venous thrombosis. The peripheral high-intensity rim on T1-weighted MRI is characteristic for RDL; however, it may not be observed at all the phases of RDL. Susceptibility-weighted MR sequences (SWS) have exquisite sensitivity to blood products, and we hypothesized that the low-intensity rim due to the T2* shortening effects of blood products may be more clearly demonstrated on SWS. The purpose of this study is to evaluate the capability of SWS for the diagnosis of RDL. Methods: Surgically proven 15 RDL, which showed suggestive MRI findings (high-intensity rim or entirely high signal intensity on T1-weighted imaging) were retrospectively evaluated. MRI was qualitatively evaluated for the presence of high-intensity rim around a mass on fat-saturated T1-weighted images, and low-intensity rim on T2-weighted images and on SWS (susceptibility-weighted imaging [SWI] or T2-star-weighted angiography [SWAN]). Results: The high-intensity rim on T1-weighted images, low-intensity rim on T2-weighted images and on SWS were observed in 47%, 47%, and 100% of RDL, respectively. The other 53% of lesions showed entirely high signal intensity on T1-weighted images. Pathological examination revealed coagulative necrosis in all 15 lesions. Conclusion: SWS may be helpful for the diagnosis of RDL by revealing characteristic peripheral low-intensity rim.
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Affiliation(s)
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital
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21
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Takeuchi M, Matsuzaki K, Bando Y, Nishimura M, Hayashi A, Harada M. A Case of Uterine Tumor Resembling Ovarian Sex-cord Tumor (UTROSCT) Exhibiting Similar Imaging Characteristics to Those of Ovarian Sex-cord Tumor. Magn Reson Med Sci 2018; 18:113-114. [PMID: 29794407 PMCID: PMC6460130 DOI: 10.2463/mrms.ci.2017-0177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital
| | | | - Aki Hayashi
- Department of Obstetrics and Gynecology, Tokushima University
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22
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Kusagawa H, Haruta N, Shinhara R, Hoshino Y, Tabuchi A, Sugawara H, Shinozaki K, Matsuzaki K, Nagata H, Niihara H, Kohno K, Takeda R. Surgical methods and clinical results of subfascial endoscopic perforator surgery in Japan. Phlebology 2018; 33:678-686. [DOI: 10.1177/0268355517750523] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objectives To clarify the surgical methods and the clinical results of subfascial endoscopic perforator surgery in Japan. Methods This study included 1287 limbs of 1091 patients who underwent subfascial endoscopic perforator surgery in 14 hospitals. Simultaneous saphenous vein treatment was performed in 1079 limbs (83.8%), and 118 limbs (9.2%) had deep venous lesions. The venous clinical severity score was calculated before and 6 to 12 months after surgery. The ulcer healing rate and ulcer recurrence rate were calculated cumulatively. Results Preoperative venous clinical severity score was significantly decreased from 10.0 ± 6.6 to 3.1 ± 3.4 ( P < .0001) postoperatively. The primary ulcer healing rate was 96.2% (332/345 C6 limbs) at an average follow-up of 47.7 months, and the ulcer recurrence rate was 12.0% (49/393 C5, C6 limbs) at the average follow-up of 46.0 months after the ulcer healed. Conclusion These results indicate that subfascial endoscopic perforator surgery is an alternative to improve the long-lasting disease severity and/or clinical outcome.
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Affiliation(s)
- Hitoshi Kusagawa
- Department of Thoracic and Cardiovascular Surgery, Matsusaka Chuo General Hospital, Matsusaka, Japan (Presently, Matsusaka Ohta Clinic, Matsusaka, Japan)
| | - Naoki Haruta
- Department of Vascular Surgery, Takanobashi Central Hospital, Hiroshima, Japan
| | - Ryo Shinhara
- Department of Vascular Surgery, Mitsubishi Mihara Hospital, Mihara, Japan
| | - Yuji Hoshino
- Department of Vascular Surgery, Fukuoka Sanno Hospital, Fukuoka, Japan
| | - Atsushi Tabuchi
- Department of Cardiovascular Surgery, Kawasaki Medical School, Kurashiki, Japan
| | - Hiromitsu Sugawara
- Department of Surgery, Sendai Hospital of East Japan Railway Company, Sendai, Japan
| | - Koji Shinozaki
- Department of Surgery, Kobe Ekisai-kai Hospital, Kobe, Japan
| | - Kenji Matsuzaki
- Department of Cardiovascular Surgery, NTT Sapporo Hospital, Sapporo, Japan
| | - Hidetoshi Nagata
- Department of Surgery, Fujita Health University Banbuntane-hotokukai Hospital, Nagoya, Japan
| | - Hiroyuki Niihara
- Department of Dermatology, Shimane University Faculty of Medicine, Izumo, Japan
| | - Kunie Kohno
- Center for Community-Based Health Research and Education (COHRE), Organization for the Promotion of Project Research, Shimane University, Izumo, Japan
| | - Ryoji Takeda
- Department of Vascular Surgery, Rakuwakai Otowa Hospital, Kyoto, Japan
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23
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Takeuchi M, Matsuzaki K, Harada M. [3. Routine MRI Examination for the Contribution of the Suitable Treatment 3-2. MRI of the Uterus]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2018; 74:499-506. [PMID: 29780050 DOI: 10.6009/jjrt.2018_jsrt_74.5.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
| | - Kenji Matsuzaki
- Department of Radiological Technology, Tokushima Bunri University
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24
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Takeuchi M, Matsuzaki K, Tsuneyama K, Nishimura M, Takiguchi E, Harada M. Ovarian Large Cell Neuroendocrine Carcinoma Associated with Serous Carcinoma: Correlation of Pathology with MR Imaging. Magn Reson Med Sci 2017; 16:273-274. [PMID: 28566585 PMCID: PMC5743517 DOI: 10.2463/mrms.ci.2016-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
| | - Kenji Matsuzaki
- Department of Radiology, Tokushima University.,Department of Radiological Technology, Tokushima Bunri University
| | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Tokushima University
| | | | - Eri Takiguchi
- Department of Obstetrics and Gynecology, Tokushima University
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25
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Hashimoto M, Yamashita K, Matsuzaki K, Kato S, Shido O. BENEFICIAL EFFECTS OF PERILLA OIL AND BRAIN TRAINING INTERVENTION ON COGNITION IN ELDERLY JAPANESE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Hashimoto
- Shimane University Faculty of Medicine, Izumo, Japan,
| | - K. Yamashita
- Department of Nursing, Faculty of Nursing, The University of Shimane, Izumo, Japan,
| | - K. Matsuzaki
- Shimane University Faculty of Medicine, Izumo, Japan,
| | - S. Kato
- Kato Hospital, Jinjukai Healthcare Corporation, Izumo, Japan
| | - O. Shido
- Shimane University Faculty of Medicine, Izumo, Japan,
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26
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Takeuchi M, Matsuzaki K, Harada M. Evaluating Myometrial Invasion in Endometrial Cancer: Comparison of Reduced Field-of-view Diffusion-weighted Imaging and Dynamic Contrast-enhanced MR Imaging. Magn Reson Med Sci 2017; 17:28-34. [PMID: 28515411 PMCID: PMC5760230 DOI: 10.2463/mrms.mp.2016-0128] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To compare the diagnostic ability of reduced FOV diffusion-weighted (DW) MR imaging with that of 3D dynamic contrast-enhanced (DCE) MR imaging in evaluating the depth of myometrial invasion in patients with endometrial cancer. METHODS Three tesla MR images including T2-weighted imaging, reduced FOV DW imaging and 3D DCE MR imaging in sagittal and oblique axial (short axis) planes in 25 women with surgically proven endometrial cancer were retrospectively evaluated. The depth of myometrial invasion (stage S: < 50% vs stage D: ≥ 50%) on MR imaging was correlated with surgical pathology results. RESULTS The 25 endometrial cancers included 16 stage S and 9 stage D tumors. The depth of myometrial invasion could be accurately evaluated in 68% of the cases for T2-weighted imaging, 92% for 3D DCE MR imaging, and 96% for reduced FOV DW imaging. In two patients with coexisting adenomyosis, both T2-weighted imaging and 3D DCE MR imaging failed to reveal the deep myometrial invasion, and reduced FOV DW imaging clearly demonstrated the tumor margin in the cases. Combination of reduced FOV DW imaging reading together with T2-weighted imaging improved the assessment of myometrial invasion with a diagnostic accuracy of up to 100%. CONCLUSIONS Addition of reduced FOV DW imaging may improve the staging accuracy of MR imaging for endometrial cancer in assessing the depth of myometrial invasion. Especially, reduced FOV DW imaging has an advantage in assessing the depth of myometrial invasion for patients with coexisting adenomyosis. Reduced FOV DW imaging can be an alternative to 3D DCE MR imaging in evaluating myometrial invasion of endometrial cancer without the use of contrast medium.
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Affiliation(s)
| | - Kenji Matsuzaki
- Department of Radiology, Tokushima University.,Department of Radiological Technology, Tokushima Bunri University
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27
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Sanderson DCW, Cresswell AJ, Tamura K, Iwasaka T, Matsuzaki K. Evaluating remediation of radionuclide contaminated forest near Iwaki, Japan, using radiometric methods. J Environ Radioact 2016; 162-163:118-128. [PMID: 27232824 DOI: 10.1016/j.jenvrad.2016.05.019] [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] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 05/10/2016] [Accepted: 05/15/2016] [Indexed: 06/05/2023]
Abstract
Radiometric surveys have been conducted in support of a project investigating the potential of biofuel power generation coupled with remediation of forests contaminated with radionuclides following the Fukushima Daiichi accident. Surveys conducted in 2013 and 2014 were used to determine the distribution and time dependence of radionuclides in a cedar plantation and adjacent deciduous forestry subject to downslope radionuclide migration, and a test area where litter removal was conducted. The radiocaesium results confirmed enhanced deposition levels in the evergreen areas compared with adjacent areas of deciduous forestry, implying significant differences in depositional processes during the initial interception period in 2011. Surveys were conducted both with and without a collimator on both occasions, which modified the angular response of the detector to separate radiation signals from above and below the detector. The combined data have been used to define the influence of radionuclides in the forest canopy on dose rate at 1 m, indicating that, in evergreen areas, the activity retained within the canopy even by 2013 contributed less than 5% of ground level dose rate. The time dependent changes observed allow the effect of remediation by litter removal in reducing radionuclide inventories and dose rates to be appraised relative natural redistribution processes on adjacent control areas. A 15 × 45 m area of cedar forest was remediated in September 2013. The work involved five people in a total of 160 person hours. It incurred a total dose of 40-50 μSv, and generated 2.1 t of waste comprising forest litter and understory. Average dose rates were reduced from 0.31 μSv h-1 to 0.22 μSv h-1, with nuclide specific analyses indicating removal of 30 ± 3% of the local radiocaesium inventory. This compares with annual removal rates of 10-15% where radionuclide migration down-slope over ranges of 10-50 m could be observed within adjacent areas. Local increases were also observed in areas identified as sinks. The results confirm the utility of time-series, collimated, radiometric survey methods to account for the distribution and changes in radionuclide inventory within contaminated forests. The data on litter removal imply that significant activity transfer from canopy to soil had taken place, and provide benchmark results against which such remediation actions can be appraised.
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Affiliation(s)
- D C W Sanderson
- Scottish Universities Environmental Research Centre, East Kilbride, Glasgow G75 0QF, United Kingdom.
| | - A J Cresswell
- Scottish Universities Environmental Research Centre, East Kilbride, Glasgow G75 0QF, United Kingdom
| | - K Tamura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Japan
| | - T Iwasaka
- Miraishiko Inc., Kanegaya, Asahi-ku, Yokohama, Japan
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28
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Takeuchi M, Matsuzaki K, Harada M. Carcinosarcoma of the uterus: MRI findings including diffusion-weighted imaging and MR spectroscopy. Acta Radiol 2016; 57:1277-84. [PMID: 26787673 DOI: 10.1177/0284185115626475] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 11/24/2015] [Indexed: 01/20/2023]
Abstract
BACKGROUND Recently carcinosarcoma has become regarded as a subset of endometrial carcinoma. Because the clinical course of carcinosarcoma is aggressive with poor prognosis, it should be differentiated from endometrial carcinomas for the appropriate surgical management and adjuvant therapy. PURPOSE To clarify the magnetic resonance imaging (MRI) characteristics of uterine carcinosarcoma including diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) measurement and MR spectroscopy (MRS) with quantitative metabolite evaluation. MATERIAL AND METHODS MRI findings of 12 pathologically diagnosed uterine carcinosarcomas obtained on 3T MRI were retrospectively evaluated. The mean and minimum ADCs, and the lipid and choline concentration levels were compared with those of pathologically diagnosed 38 endometrial carcinomas. RESULTS The mean and minimum ADCs in carcinosarcomas and endometrial carcinomas were not significantly different. The mean ADC of carcinosarcomas was significantly higher than that of higher grade (G2 and G3) endometrial carcinomas. The choline concentration in carcinosarcomas was significantly lower than that in endometrial carcinomas. High lipid peak was observed in 91% of carcinosarcomas and in 24% of endometrial carcinomas. CONCLUSION Large, exophytic heterogeneous endometrial mass containing strongly enhanced areas, which may exhibit "tumor delivery", is a suggestive of carcinosarcoma. Relatively high mean ADC and low choline concentration considering its highly malignant nature due to intra-tumoral heterogeneity with necrosis and epithelial cystic components, and the presence of necrosis-associated high lipid peak may be compatible with carcinosarcoma.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, University of Tokushima, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiology, University of Tokushima, Tokushima, Japan Department of Radiological Technology, Tokushima Bunri University, Kagawa, Japan
| | - Masafumi Harada
- Department of Radiology, University of Tokushima, Tokushima, Japan
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29
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Harada M, Amano Y, Matsuzaki K, Hayashi Y, Nishitani H, Yoshizumi M, Yoshida O, Katoh I. Quantitative Evaluation of Intraarterial Lymphocyte Injection Therapy for Lymph Edema Using MR Imaging. Acta Radiol 2016. [DOI: 10.1177/028418519403500501] [Citation(s) in RCA: 2] [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] [Indexed: 11/15/2022]
Abstract
Five patients with unilateral leg lymph edema had intraarterial injections of lymphocytes in the affected leg with consequent improvement in 3. To assess the degree of lymph edema, T2 and intensity ratio between the 2 legs in STIR images were used. Mean and SD of T2 values in the subcutaneous tissue were measured using a triple echo sequence and found larger on the edematous side than in the opposite extremity. The mean T2 shortening obtained after the lymphocyte therapy correlated well with the reduction of limb circumference. Mean T2 reflects the fluid content, and SD of T2 the fluid distribution in the subcutaneous tissue. The degree of lymph edema and the effect of therapy can be evaluated quantitatively by measuring the value of the T2 relaxation time.
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Affiliation(s)
- M. Harada
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - Y. Amano
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - K. Matsuzaki
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - Y. Hayashi
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - H. Nishitani
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - M. Yoshizumi
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - O. Yoshida
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
| | - I. Katoh
- From the Departments of Radiology and Cardiovascular Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
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Fujita K, Kume H, Matsuzaki K, Kawashima A, Ujike T, Nagahara A, Uemura M, Tomonaga T, Nonomura N. Discovery of high-Gleason prostate cancer biomarker candidates from exosomes in urine after massage by proteomic analysis and subsequent verification using selected reaction monitoring. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61653-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Takeuchi M, Matsuzaki K, Harada M. Computed diffusion-weighted imaging for differentiating decidualized endometrioma from ovarian cancer. Eur J Radiol 2016; 85:1016-9. [DOI: 10.1016/j.ejrad.2016.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/08/2016] [Indexed: 10/22/2022]
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Abstract
OBJECTIVE Currently, polyurethane foam dressings are commercially available from many manufacturers. However, the pressure-reducing effect is expected to differ by the formulation and combination of the main and secondary ingredients and by manufacturing method. In this study, we investigated the effects of pressure reduction using dressing materials with various structural characteristics, including polyurethane foam dressings based on the engineering point of view, focusing on the dry state. METHOD Pressure was measured in a model that simulated compression on the sacral region in a decubitus position. Pressure was measured for different dressings: ten products, consisting of five types of material (polyurethane foam, hydropolymeric, Hydrofiber, hydrocolloid, and low-adherent absorbent). RESULTS All dressings used in this study showed significantly reduced pressure. ALLEVYN Non-Adhesive had the lowest pressure at 35.833 ± 1.155 mmHg, and DuoDERM Extra Thin CGF had the highest pressure at 66.867 ± 1.060 mmHg. The pressure of the control was 74.667 ± 1.405 mmHg. The other dressings were: ALLEVYN Adhesive: 44.233 ± 0.777 mmHg; ALLEVYN Gentle Border: 46.967 ± 1.537mmHg; Mepilex Border: 53.867 ± 0.231 mmHg; Biatain Silicone: 56.000 ± 0.520 mmHg; TIELLE: 57.267 ± 3.403 mmHg;Versiva XC: 65.900 ± 0.800 mmHg; DuoDERM CGF: 57.267 ± 1.007 mmHg; and Melolin: 53.433 ± 1.973 mmHg. CONCLUSION The pressure-reducing effect of dressing differs not only by material type but also by product. That is, the pressure-reducing effect can differ even if the dressings are of the same material type, such as polyurethane foam. Our study investigated only the effect of materials and structural characteristics on the cushion of dressings in the dry state. Therefore, further investigation is needed to confirm the effect of pressure reduction by dressing to meet the conditions in the clinic.
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Affiliation(s)
- K Matsuzaki
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Kishi
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
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Yamashita Y, Murayama S, Okada M, Watanabe Y, Kataoka M, Kaji Y, Imamura K, Takehara Y, Hayashi H, Ohno K, Awai K, Hirai T, Kojima K, Sakai S, Matsunaga N, Murakami T, Yoshimitsu K, Gabata T, Matsuzaki K, Tohno E, Kawahara Y, Nakayama T, Monzawa S, Takahashi S. The essence of the Japan Radiological Society/Japanese College of Radiology Imaging Guideline. Jpn J Radiol 2015; 34:43-79. [DOI: 10.1007/s11604-015-0499-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Majigsuren M, Abe T, Kageji T, Matsuzaki K, Takeuchi M, Iwamoto S, Otomi Y, Uyama N, Nagahiro S, Harada M. Comparison of Brain Tumor Contrast-enhancement on T1-CUBE and 3D-SPGR Images. Magn Reson Med Sci 2015; 15:34-40. [PMID: 26104076 DOI: 10.2463/mrms.2014-0129] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE T1-Cube (GE HealthCare) is a relatively new 3-dimensional (3D) fast spin-echo (FSE)-based magnetic resonance (MR) imaging sequence that uses a variable flip angle to acquire gap-free volume scans. We compared the gadolinium enhancement characteristics of a heterogeneous population of brain tumors imaged by T1-Cube and then 3D fast spoiled gradient recall acquisition in steady state (3D FSPGR) 3-tesla MR imaging to identify the superior modality for specific diagnostic purposes. METHODS We examined 61 lesions from 32 patients using the 2 sequences after administration of gadopentetic acid (Gd-DTPA; 0.1 mmol/kg). Two neuroradiologists independently measured each lesion twice using a region-of-interest (ROI) method. We measured the contrast-to-noise ratio (CNR), the difference in signal intensity (SI) between the tumor and normal white matter relative to the standard deviation (SD) of the SI within the lesion, for both post-contrast 3D FSPGR and post-contrast T1-Cube images of the same tumor and compared modality-specific CNRs for all tumors and in subgroups defined by tumor size, enhancement ratio, and histopathology. RESULTS The mean CNR was significantly higher on T1-Cube images than 3D FSPGR images for the total tumor population (1.85 ± 0.97 versus 1.12 ± 1.05, P < 0.01) and the histologic types, i.e., metastasis (P < 0.01) and lymphoma (P < 0.05). The difference in CNR was even larger for smaller tumors in the metastatic group (4.95 to 23.5 mm(2)) (P < 0.01). In contrast, mean CNRs did not differ between modalities for high grade glioma and meningioma. CONCLUSIONS Gadolinium enhancement of brain tumors was generally higher when imaged by T1-Cube than 3D FSPGR, and T1-Cube with Gd enhancement may be superior to 3D FSPGR for detecting smaller metastatic tumors.
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Affiliation(s)
- Mungunkhuyag Majigsuren
- Department of Radiology, Institute of Health Biosciences, The University of Tokushima Graduate School
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Shibata M, Shintaku Y, Matsuzaki K, Uematsu S. The effect of IL-17 on the production of proinflammatory cytokines and matrix metalloproteinase-1 by human periodontal ligament fibroblasts. Orthod Craniofac Res 2015; 17:60-8. [PMID: 25125133 DOI: 10.1111/ocr.12033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2013] [Indexed: 01/02/2023]
Abstract
OBJECTIVES To investigate the effects of IL-17 on IL-6, IL-1β, and matrix metalloproteinase (MMP-1) production, and to compare the MMP-1 production between the individual and combined effects of IL-1β and IL-6 in human periodontal ligament fibroblasts (HPDLF). MATERIALS AND METHODS Human periodontal ligament fibroblasts were cultured with IL-17 for 0.5, 1, 4, 24, 48, and 72 h, and were cultured with IL-1β, IL-6/sIL-6R, or a combination of IL-1β and IL-6/sIL-6R for 24 h. To measure the mRNA levels of IL-6, IL-1β, and MMP-1, total RNA was extracted from the cultured HPDLF, and a real-time PCR analysis was performed. The protein levels of IL-6, IL-1β, and MMP-1 in supernatants were measured using enzyme-linked immunosorbent assays (ELISAs). RESULTS IL-17 significantly increased the expression of IL-6 and MMP-1 mRNA and protein, while IL-17 transiently increased the expression of IL-1β mRNA. The combination of IL-1β and IL-6/sIL-6R induced significantly higher levels of MMP-1 protein than IL-1β alone. CONCLUSIONS IL-17 upregulated the production of IL-6 and MMP-1 sequentially in HPDLF. IL-6/sIL-6R may enhance the effects of IL-1β on MMP-1 production. The present results suggest that IL-17 induces MMP-1 production not only directly, but also indirectly by promoting IL-6 production, thus resulting in the degradation of collagens in the PDL.
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Affiliation(s)
- M Shibata
- Department of Orthodontics, Osaka University Dental Hospital, Suita, Japan
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Ezure T, Yagi E, Amano S, Matsuzaki K. Dermal anchoring structures: convex matrix structures at the bottom of the dermal layer that contribute to the maintenance of facial skin morphology. Skin Res Technol 2015; 22:152-7. [PMID: 26058484 DOI: 10.1111/srt.12242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND/PURPOSE Facial skin must be linked to underlying structures to maintain facial morphology and prevent sagging, but the mechanism of facial skin retention is largely unknown. We aimed to elucidate this mechanism. METHODS Twenty-two cheek skin specimens (age range: 10s-60s, both genders) were observed histologically. And 30 cheek of healthy Japanese volunteers (age range: 30s-50s, female) was photographed and the severity of sagging was graded. Dermal layer morphology was observed non-invasively with ultrasound. Skin-retaining force was measured with a Cutometer MPA 580(®) , and sagging severity was evaluated by grading criteria. RESULTS Histological observation revealed characteristic convex structures at the bottom of the dermal layer. Non-invasive study showed that the depth of the convex structures, measured by ultrasonography, was significantly negatively related to the ratio of viscoelastic to elastic distention (Uv/Ue) and positively related to the ratio of elastic recovery to total deformation (Ur/Uf) at the cheek of female volunteers, measured by cutometer. It was also negatively related to sagging severity. Further, Ur/Uf was negatively and Uv/Ue was positively related to sagging severity. CONCLUSION Characteristic convex structures at the bottom of the dermal layer serve as anchoring structures to maintain skin morphology.
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Affiliation(s)
- T Ezure
- Shiseido Research Center, Kanagawa, Japan
| | - E Yagi
- Shiseido Research Center, Kanagawa, Japan
| | - S Amano
- Shiseido Research Center, Kanagawa, Japan
| | - K Matsuzaki
- St Marianna University School of Medicine, Kanagawa, Japan
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Otomi Y, Otsuka H, Terazawa K, Nose H, Kubo M, Matsuzaki K, Ikushima H, Bando Y, Harada M. Comparing the performance of visual estimation and standard uptake value of F-18 fluorodeoxyglucose positron emission tomography/computed tomography for detecting malignancy in pancreatic tumors other than invasive ductal carcinoma. J Med Invest 2015; 61:171-9. [PMID: 24705763 DOI: 10.2152/jmi.61.171] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
INTRODUCTION The utility of FDG PET/CT for the detection and evaluation of invasive ductal carcinoma has been widely reported, but a few studies have assessed the utility of FDG PET/CT to detect malignancy in a variety of pancreatic lesions other than invasive ductal carcinoma. PURPOSE To compare the diagnostic performance of visual estimation with the semi-quantitative scores of FDG PET/CT for detecting malignancy in a variety of pancreatic lesions other than invasive ductal carcinoma. MATERIAL AND METHODS Images of pathologically proven pancreatic lesions from 32 patients were retrospectively evaluated: 14 benign lesions, 7 borderline (low malignant) lesions, and 11 malignant lesions. The average scores from visual estimation by the two observers were compared to two semi-quantitative analyses of FDG uptake in the lesions, namely the maximum standardized uptake value (SUVmax) and mean standardized uptake value (SUVmean). RESULTS Visual analysis value, SUVmax and SUVmean were 0.33 ± 0.21, 1.8 ± 0.7 and 1.5 ± 0.7 for the benign lesions, 0.70 ± 0.28, 5.0 ± 2.6 and 3.1±1.7 for the borderline lesions, and 0.73 ± 0.18, 4.7 ± 2.5 and 3.2 ± 1.6 for the malignant lesions, respectively. Receiver operating characteristic analysis revealed the areas under the curves for detecting non-benign (malignant or borderline) lesions through visual analysis, SUVmax, and SUVmean were 0.914, 0.954, and 0.875, respectively. CONCLUSION For a variety of pancreatic lesions other than invasive ductal carcinoma, visual analysis and semi-quantitative analyses all showed strong diagnostic performance. However, semi-quantitative analysis with SUVmax proved to be the most effective method for detecting non-benign pancreatic lesions.
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Affiliation(s)
- Yoichi Otomi
- Departments of Radiology, Institute of Health Bioscience, the University of Tokushima Graduate School
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Takeuchi M, Matsuzaki K, Harada M. Susceptibility-weighted MRI of extra-ovarian endometriosis: preliminary results. ACTA ACUST UNITED AC 2015; 40:2512-6. [DOI: 10.1007/s00261-015-0378-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
We report findings of magnetic resonance imaging including susceptibility-weighted imaging (SWI) of the subacute torsion of an ovarian fibrothecoma in a patient with renal dysfunction. Although venous thrombosis within the vascular pedicle mimicked a malignant tumor, showing high signal intensity on T2-weighted images and diffusion-weighted imaging, we diagnosed ovarian torsion on SWI without the administration of contrast medium, aided by the prominent susceptibility-induced signal void caused by the thrombosis.
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Abstract
We synthesized a new class of membrane-binding amphiphilic DNA consisting of hydrophilic phosphodiester-linked DNA and hydrophobic octyl phosphotriester-linked DNA. The amphiphilic DNA binds to the lipid membrane by inserting the hydrophobic region, which is facilitated by the presence of the complementary DNA strand.
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Affiliation(s)
- C. Dohno
- Regulatory Bioorganic Chemistry
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki 567-0047
- Japan
| | - K. Matsuzaki
- Regulatory Bioorganic Chemistry
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki 567-0047
- Japan
| | - H. Yamaguchi
- Regulatory Bioorganic Chemistry
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki 567-0047
- Japan
| | - T. Shibata
- Regulatory Bioorganic Chemistry
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki 567-0047
- Japan
| | - K. Nakatani
- Regulatory Bioorganic Chemistry
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki 567-0047
- Japan
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Abstract
PURPOSE Polypoid adenomyoma (PA) is an uncommon benign tumor of the uterus appearing as a submucosal polypoid mass, or rarely as a subserosal polypoid mass. PA should be differentiated from atypical polypoid adenomyoma or malignant uterine tumors. The purpose of our case series is to evaluate magnetic resonance (MR) manifestations of PA for the differential diagnosis. METHODS Seven cases with surgically proven PA, five submucosal, and two subserosal, were evaluated. MR imaging findings including contrast enhancement in six cases (four cases with dynamic contrast-enhanced MR study), diffusion-weighted imaging (DWI) in five cases, and susceptibility weighted imaging (SWI) in two cases were retrospectively reviewed. RESULTS All seven lesions exhibited isointensity compared with the myometrium and 4 of 7 lesions (57%) contained high signal intensity hemorrhagic areas on T1-weighted images. On T2-weighted images, signal intensity was variable and all seven lesions contained cysts. None of five lesions with DWI exhibited high signal intensity compared with the normal myometrium. All six lesions showed intense contrast enhancement similar to that of the myometrium on post-contrast T1-weighted images. Punctate low intensity areas reflecting blood contents were revealed in all two lesions with SWI. CONCLUSIONS Submucosal or subserosal polypoid masses containing hemorrhagic areas, and cysts reflecting functional endometrium and dilatation of endometrial glands are suggestive for PA. Intense contrast enhancement similar to that of the myometrium may be another characteristic finding for PA.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, University of Tokushima, 3-18-15, Kuramoto-cho, Tokushima, 7708503, Japan,
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Takahashi Y, Fukui T, Kishimoto M, Suzuki R, Mitsuyama T, Sumimoto K, Okazaki T, Sakao M, Sakaguchi Y, Yoshida K, Uchida K, Nishio A, Matsuzaki K, Okazaki K. Phosphorylation of Smad2/3 at the specific linker threonine residue indicates slow-cycling esophageal stem-like cells before re-entry to the cell cycle. Dis Esophagus 2014; 29:107-15. [PMID: 25168378 DOI: 10.1111/dote.12277] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
UNLABELLED The stem cell compartment in the esophageal epithelium is possibly located in the basal layer. We have identified significant expression of Smad2/3, phosphorylated at specific linker threonine residues (pSmad2/3L-Thr), in the epithelial cells of murine stomach and intestine, and have suggested that these cells are epithelial stem cells. In this study, we explore whether pSmad2/3L-Thr could serve as a biomarker for esophageal stem cells. We examined esophageal tissues from normal C57BL/6 mice and those with esophagitis. Double immunofluorescent staining of pSmad2/3L-Thr with Ki67, CDK4, p63, or CK14 was performed. After immunofluorescent staining, we stained the same sections with hematoxylin-eosin and observed these cells under a light microscope. We used the 5-bromo-2-deoxyuridine (BrdU) labeling assay to examine label retention of pSmad2/3L-Thr immunostaining-positive cells. We collected specimens 5, 10, 15 and 20 days after repeated BrdU administrations and observed double immunofluorescent staining of pSmad2/3L-Thr with BrdU. In the esophagus, pSmad2/3L-Thr immunostaining-positive cells were detected in the basal layer. These cells were detected between Ki67 immunostaining-positive cells, but they were not co-localized with Ki67. pSmad2/3L-Thr immunostaining-positive cells showed co-localization with CDK4, p63, and CK14. Under a light microscope, pSmad2/3L-Thr immunostaining-positive cells indicated undifferentiated morphological features. Until 20 days follow-up period, pSmad2/3L-Thr immunostaining-positive cells were co-localized with BrdU. pSmad2/3L-Thr immunostaining-positive cells significantly increased in the regeneration phase of esophagitis mucosae, as compared with control mice (esophagitis vs. CONTROL 6.889 ± 0.676/cm vs. 4.293 ± 0.659/cm; P < 0.001). We have identified significant expression of pSmad2/3L-Thr in the specific epithelial cells of murine esophagi. We suggest that these cells are slow-cycling epithelial stem-like cells before re-entry to the cell cycle.
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Affiliation(s)
- Y Takahashi
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Fukui
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - M Kishimoto
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - R Suzuki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Mitsuyama
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Sumimoto
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - T Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - M Sakao
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - Y Sakaguchi
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Yoshida
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Uchida
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - A Nishio
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Matsuzaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
| | - K Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Hirakata, Japan
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Takeuchi M, Matsuzaki K, Bando Y, Sakaki M, Furumoto H, Harada M. Magnetic resonance manifestations of villoglandular papillary adenocarcinoma of the uterine cervix with a fern-leaf-like appearance. Magn Reson Med Sci 2014; 13:267-70. [PMID: 24990463 DOI: 10.2463/mrms.2013-0078] [Citation(s) in RCA: 3] [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] [Indexed: 11/09/2022] Open
Abstract
Villoglandular papillary adenocarcinoma (VGPA) is a rare subtype of cervical adenocarcinoma that generally affects young women and has a favorable prognosis. Its preoperative diagnosis is important to avoid excessive surgery. We report the magnetic resonance (MR) findings of a case in which the cervical tumor showed a fern-leaf-like appearance on high resolution T2-weighted images obtained at 3 tesla. MR imaging clearly showed this pathological feature that may suggest this disease.
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Deng YR, Yoshida K, Jin QL, Murata M, Yamaguchi T, Tsuneyama K, Moritoki Y, Niu JQ, Matsuzaki K, Lian ZX. Reversible phospho-Smad3 signalling between tumour suppression and fibrocarcinogenesis in chronic hepatitis B infection. Clin Exp Immunol 2014; 176:102-11. [PMID: 24372395 DOI: 10.1111/cei.12259] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Accepted: 12/20/2013] [Indexed: 12/24/2022] Open
Abstract
Transforming growth factor (TGF)-β, type I receptor (TβRI) and c-Jun N-terminal kinases (JNK) phosphorylate Smad3 differentially to create 2 isoforms phosphorylated (p) at the COOH-terminus (C) or at the linker region (L) and regulate hepatocytic fibrocarcinogenesis. This study aimed to compare the differences between how hepatitis B virus (HBV) infection affected hepatocytic Smad3 phosphorylated isoforms before and after anti-viral therapy. To clarify the relationship between Smad3 phosphorylation and liver disease progression, we studied 10 random patients in each stage of HBV-related fibrotic liver disease (F1-4) and also 10 patients with HBV-associated HCC. To examine changes in phosphorylated Smad3 signalling before and after anti-HBV therapies, we chose 27 patients with chronic hepatitis B who underwent baseline and follow-up biopsies at 52 weeks from the start of nucleoside analogue treatments (Lamivudine 100 mg daily or Telbivudine 600 mg daily). Fibrosis stage, inflammatory activity and phosphorylated Smad3 positivity in the paired biopsy samples were compared. Hepatocytic pSmad3C signalling shifted to fibrocarcinogenic pSmad3L signalling as the livers progressed from chronic hepatitis B infection to HCC. After nucleoside analogue treatment, serum alanine aminotransferase (ALT) and HBV-DNA levels in 27 patients with HBV-related chronic liver diseases were decreased dramatically. Decrease in HBV-DNA restored pSmad3C signalling in hepatocytes, while eliminating prior fibrocarcinogenic pSmad3L signalling. Oral nucleoside analogue therapies can suppress fibrosis and reduce HCC incidence by successfully reversing phosphorylated Smad3 signalling; even liver disease progressed to cirrhosis in chronic hepatitis B patients.
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Affiliation(s)
- Y-R Deng
- Liver Immunology Laboratory, Institute of Immunology and School of Life Sciences, University of Science and Technology of China, Hefei, China; Intensive Care Unit, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
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Aaberg-Jessen C, Fogh L, Halle B, Jensen V, Brunner N, Kristensen BW, Abe T, Momii Y, Watanabe J, Morisaki I, Natsume A, Wakabayashi T, Fujiki M, Aldaz B, Fabius AWM, Silber J, Harinath G, Chan TA, Huse JT, Anai S, Hide T, Nakamura H, Makino K, Yano S, Kuratsu JI, Balyasnikova IV, Prasol MS, Kanoija DK, Aboody KS, Lesniak MS, Barone T, Burkhart C, Purmal A, Gudkov A, Gurova K, Plunkett R, Barton K, Misuraca K, Cordero F, Dobrikova E, Min H, Gromeier M, Kirsch D, Becher O, Pont LB, Kloezeman J, van den Bent M, Kanaar R, Kremer A, Swagemakers S, French P, Dirven C, Lamfers M, Leenstra S, Pont LB, Balvers R, Kloezeman J, Kleijn A, Lawler S, Leenstra S, Dirven C, Lamfers M, Gong X, Andres A, Hanson J, Delashaw J, Bota D, Chen CC, Yao NW, Chuang WJ, Chang C, Chen PY, Huang CY, Wei KC, Cheng Y, Dai Q, Morshed R, Han Y, Auffinger B, Wainwright D, Zhang L, Tobias A, Rincon E, Thaci B, Ahmed A, He C, Lesniak M, Choi YA, Pandya H, Gibo DM, Fokt I, Priebe W, Debinski W, Chornenkyy Y, Agnihotri S, Buczkowicz P, Rakopoulos P, Morrison A, Barszczyk M, Becher O, Hawkins C, Chung S, Decollogne S, Luk P, Shen H, Ha W, Day B, Stringer B, Hogg P, Dilda P, McDonald K, Moore S, Hayden-Gephart M, Bergen J, Su Y, Rayburn H, Edwards M, Scott M, Cochran J, Das A, Varma AK, Wallace GC, Dixon-Mah YN, Vandergrift WA, Giglio P, Ray SK, Patel SJ, Banik NL, Dasgupta T, Olow A, Yang X, Mueller S, Prados M, James CD, Haas-Kogan D, Dave ND, Desai PB, Gudelsky GA, Chow LML, LaSance K, Qi X, Driscoll J, Driscoll J, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovic RD, McMahon J, Powers JP, Jaen JC, Schall TJ, Eroglu Z, Portnow J, Sacramento A, Garcia E, Raubitschek A, Synold T, Esaki S, Rabkin S, Martuza R, Wakimoto H, Ferluga S, Tome CL, Debinski W, Forde HE, Netland IA, Sleire L, Skeie B, Enger PO, Goplen D, Giladi M, Tichon A, Schneiderman R, Porat Y, Munster M, Dishon M, Weinberg U, Kirson E, Wasserman Y, Palti Y, Giladi M, Porat Y, Schneiderman R, Munster M, Weinberg U, Kirson E, Palti Y, Gramatzki D, Staudinger M, Frei K, Peipp M, Weller M, Grasso C, Liu L, Becher O, Berlow N, Davis L, Fouladi M, Gajjar A, Hawkins C, Huang E, Hulleman E, Hutt M, Keller C, Li XN, Meltzer P, Quezado M, Quist M, Raabe E, Spellman P, Truffaux N, van Vurden D, Wang N, Warren K, Pal R, Grill J, Monje M, Green AL, Ramkissoon S, McCauley D, Jones K, Perry JA, Ramkissoon L, Maire C, Shacham S, Ligon KL, Kung AL, Zielinska-Chomej K, Grozman V, Tu J, Viktorsson K, Lewensohn R, Gupta S, Mladek A, Bakken K, Carlson B, Boakye-Agyeman F, Kizilbash S, Schroeder M, Reid J, Sarkaria J, Hadaczek P, Ozawa T, Soroceanu L, Yoshida Y, Matlaf L, Singer E, Fiallos E, James CD, Cobbs CS, Hashizume R, Tom M, Ihara Y, Ozawa T, Santos R, Torre JDL, Lepe E, Waldman T, Prados M, James D, Hashizume R, Ihara Y, Huang X, Yu-Jen L, Tom M, Mueller S, Gupta N, Solomon D, Waldman T, Zhang Z, James D, Hayashi T, Adachi K, Nagahisa S, Hasegawa M, Hirose Y, Gephart MH, Moore S, Bergen J, Su YS, Rayburn H, Scott M, Cochran J, Hingtgen S, Kasmieh R, Nesterenko I, Figueiredo JL, Dash R, Sarkar D, Fisher P, Shah K, Horne E, Diaz P, Stella N, Huang C, Yang H, Wei K, Huang T, Hlavaty J, Ostertag D, Espinoza FL, Martin B, Petznek H, Rodriguez-Aguirre M, Ibanez C, Kasahara N, Gunzburg W, Gruber H, Pertschuk D, Jolly D, Robbins J, Hurwitz B, Yoo JY, Bolyard C, Yu JG, Wojton J, Zhang J, Bailey Z, Eaves D, Cripe T, Old M, Kaur B, Serwer L, Yoshida Y, Le Moan N, Santos R, Ng S, Butowski N, Krtolica A, Ozawa T, Cary SPL, James CD, Johns T, Greenall S, Donoghue J, Adams T, Karpel-Massler G, Westhoff MA, Kast RE, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Karpel-Massler G, Kast RE, Westhoff MA, Merkur N, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Kievit F, Stephen Z, Wang K, Kolstoe D, Silber J, Ellenbogen R, Zhang M, Kitange G, Schroeder M, Sarkaria J, Kleijn A, Haefner E, Leenstra S, Dirven C, Lamfers M, Knubel K, Pernu BM, Sufit A, Pierce AM, Nelson SK, Keating AK, Jensen SS, Kristensen BW, Lachowicz J, Demeule M, Regina A, Tripathy S, Curry JC, Nguyen T, Castaigne JP, Le Moan N, Serwer L, Yoshida Y, Ng S, Davis T, Santos R, Davis A, Tanaka K, Keating T, Getz J, Kapp GT, Romero JM, Ozawa T, James CD, Krtolica A, Cary SPL, Lee S, Ramisetti S, Slagle-Webb B, Sharma A, Connor J, Lee WS, Maire C, Kluk M, Aster JC, Ligon K, Sun S, Lee D, Ho ASW, Pu JKS, Zhang ZQ, Lee NP, Day PJR, Leung GKK, Liu Z, Liu X, Madhankumar AB, Miller P, Webb B, Connor JR, Yang QX, Lobo M, Green S, Schabel M, Gillespie Y, Woltjer R, Pike M, Lu YJ, Torre JDL, Waldman T, Prados M, Ozawa T, James D, Luchman HA, Stechishin O, Nguyen S, Cairncross JG, Weiss S, Lun X, Wells JC, Hao X, Zhang J, Grinshtein N, Kaplan D, Luchman A, Weiss S, Cairncross JG, Senger D, Robbins S, Madhankumar A, Slagle-Webb B, Rizk E, Payne R, Park A, Pang M, Harbaugh K, Connor J, Wilisch-Neumann A, Pachow D, Kirches E, Mawrin C, McDonell S, Liang J, Piao Y, Nguyen N, Yung A, Verhaak R, Sulman E, Stephan C, Lang F, de Groot J, Mizobuchi Y, Okazaki T, Kageji T, Kuwayama K, Kitazato KT, Mure H, Hara K, Morigaki R, Matsuzaki K, Nakajima K, Nagahiro S, Kumala S, Heravi M, Devic S, Muanza T, Nelson SK, Knubel KH, Pernu BM, Pierce AM, Keating AK, Neuwelt A, Nguyen T, Wu YJ, Donson A, Vibhakar R, Venkatamaran S, Amani V, Neuwelt E, Rapkin L, Foreman N, Ibrahim F, New P, Cui K, Zhao H, Chow D, Stephen W, Nozue-Okada K, Nagane M, McDonald KL, Ogawa D, Chiocca E, Godlewski J, Ozawa T, Yoshida Y, Santos R, James D, Pang M, Liu X, Madhankumar AB, Slagle-Webb B, Patel A, Miller P, Connor J, Pasupuleti N, Gorin F, Valenzuela A, Leon L, Carraway K, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Phillips A, Boghaert E, Vaidya K, Ansell P, Shalinsky D, Zhang Y, Voorbach M, Mudd S, Holen K, Humerickhouse R, Reilly E, Huang T, Parab S, Diago O, Espinoza FL, Martin B, Ibanez C, Kasahara N, Gruber H, Pertschuk D, Jolly D, Robbins J, Ryken T, Agarwal S, Al-Keilani M, Alqudah M, Sibenaller Z, Assemolt M, Sai K, Li WY, Li WP, Chen ZP, Saito R, Sonoda Y, Kanamori M, Yamashita Y, Kumabe T, Tominaga T, Sarkar G, Curran G, Jenkins R, Scharnweber R, Kato Y, Lin J, Everson R, Soto H, Kruse C, Kasahara N, Liau L, Prins R, Semenkow S, Chu Q, Eberhart C, Sengupta R, Marassa J, Piwnica-Worms D, Rubin J, Serwer L, Kapp GT, Le Moan N, Yoshida Y, Romero JM, Ng S, Davis A, Ozawa T, Krtolica A, James CD, Cary SPL, Shai R, Pismenyuk T, Moshe I, Fisher T, Freedman S, Simon A, Amariglio N, Rechavi G, Toren A, Yalon M, Shen H, Decollogne S, Dilda P, Chung S, Luk P, Hogg P, McDonald K, Shimazu Y, Kurozumi K, Ichikawa T, Fujii K, Onishi M, Ishida J, Oka T, Watanabe M, Nasu Y, Kumon H, Date I, Sirianni RW, McCall RL, Spoor J, van der Kaaij M, Kloezeman J, Geurtjens M, Dirven C, Lamfers M, Leenstra S, Stephen Z, Veiseh O, Kievit F, Fang C, Leung M, Ellenbogen R, Silber J, Zhang M, Strohbehn G, Atsina KK, Patel T, Piepmeier J, Zhou J, Saltzman WM, Takahashi M, Valdes G, Inagaki A, Kamijima S, Hiraoka K, Micewicz E, McBride WH, Iwamoto KS, Gruber HE, Robbins JM, Jolly DJ, Kasahara N, Warren K, McCully C, Bacher J, Thomas T, Murphy R, Steffen-Smith E, McAllister R, Pastakia D, Widemann B, Wei K, Yang H, Huang C, Chen P, Hua M, Liu H, Woolf EC, Abdelwahab MG, Fenton KE, Liu Q, Turner G, Preul MC, Scheck AC, Yoshida Y, Ozawa T, Butowski N, Shen W, Brown D, Pedersen H, James D, Zhang J, Hariono S, Yao TW, Sidhu A, Hashizume R, James CD, Weiss WA, Nicolaides TP, Olusanya T. EXPERIMENTAL THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2013; 15:iii37-iii61. [PMCID: PMC3823891 DOI: 10.1093/neuonc/not176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
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Takeuchi M, Matsuzaki K, Harada M. In vivo proton MR spectroscopy in uterine abscesses. J Magn Reson Imaging 2013; 38:955-7. [PMID: 24129922 DOI: 10.1002/jmri.24241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/11/2013] [Accepted: 05/03/2013] [Indexed: 11/10/2022] Open
Abstract
It is important to make a rapid diagnosis to provide appropriate treatment, however, specific diagnosis of causative organisms of pelvic abscesses on conventional MR imaging is difficult. MR spectroscopy provides metabolic information noninvasively, and has the potential to characterize etiology of the abscesses. The presence of acetate (Ac) peak with or without succinate (Suc) peak may suggest anaerobic bacterial infection, whereas the absence of Ac and Suc peaks in the spectra may suggest aerobic infection. This report describes two cases of uterine pyogenic abscesses, which showed Ac and Suc peaks on in vivo MR spectroscopy.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, University of Tokushima, Kuramoto-cho, Tokushima, Japan
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Nogawa M, Naito Y, Chatani M, Onodera H, Shiba M, Okazaki H, Matsuzaki K, Satake M, Nakajima K, Tadokoro K. Parallel comparison of apheresis-collected platelet concentrates stored in four different additive solutions. Vox Sang 2013; 105:305-12. [DOI: 10.1111/vox.12064] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 05/20/2013] [Accepted: 06/02/2013] [Indexed: 11/28/2022]
Affiliation(s)
- M. Nogawa
- Central Blood Institute; Blood Service Headquarters; Japanese Red Cross Society; Tokyo; Japan
| | | | - M. Chatani
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center; Tokyo; Japan
| | - H. Onodera
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center; Tokyo; Japan
| | - M. Shiba
- Central Blood Institute; Blood Service Headquarters; Japanese Red Cross Society; Tokyo; Japan
| | - H. Okazaki
- Central Blood Institute; Blood Service Headquarters; Japanese Red Cross Society; Tokyo; Japan
| | - K. Matsuzaki
- Japanese Red Cross Tokyo Metropolitan Blood Center; Tokyo; Japan
| | - M. Satake
- Central Blood Institute; Blood Service Headquarters; Japanese Red Cross Society; Tokyo; Japan
| | - K. Nakajima
- Japanese Red Cross Tokyo Metropolitan Blood Center; Tokyo; Japan
| | - K. Tadokoro
- Central Blood Institute; Blood Service Headquarters; Japanese Red Cross Society; Tokyo; Japan
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Takeuchi M, Matsuzaki K, Harada M. Preliminary observations and clinical value of lipid peak in high-grade uterine sarcomas using in vivo proton MR spectroscopy. Eur Radiol 2013; 23:2358-63. [DOI: 10.1007/s00330-013-2856-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 03/06/2013] [Accepted: 03/14/2013] [Indexed: 12/25/2022]
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Takeuchi M, Matsuzaki K, Harada M. Ovarian adenofibromas and cystadenofibromas: magnetic resonance imaging findings including diffusion-weighted imaging. Acta Radiol 2013; 54:231-6. [PMID: 23171527 DOI: 10.1258/ar.2012.120516] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Ovarian adenofibromas (AF) and cystadenofibromas (CAF) belong to the surface epithelial-stromal tumors, and may appear as solid, or solid and cystic masses mimicking ovarian cancers. PURPOSE To evaluate the capability of magnetic resonance imaging (MRI) including diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) measurement for the diagnosis of ovarian AF/CAF. MATERIAL AND METHODS Magnetic resonance manifestations of 13 cases of ovarian AF/CAF were retrospectively evaluated. DWI was obtained in all 13 lesions, and mean ADC values in 11 lesions were compared with those in solid portions of 27 ovarian cancers. Results Neither case with AF/CAF revealed high signal intensity on DWI, whereas all ovarian cancers showed high signal intensity on DWI. The ADC values in the solid portions of AF/CAF were significantly higher than those of ovarian cancers (P < 0.001). A cut-off value of 1.20 × 10(-3) mm(2)/s for AF/CAF had a sensitivity of 82%, specificity of 93%, positive predictive value of 82%, and negative predictive value of 93%. CONCLUSION DWI with ADC measurement may be helpful in differentiating AF/CAF from ovarian cancers.
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Affiliation(s)
- Mayumi Takeuchi
- Department of Radiology, University of Tokushima, Tokushima, Japan
| | - Kenji Matsuzaki
- Department of Radiology, University of Tokushima, Tokushima, Japan
| | - Masafumi Harada
- Department of Radiology, University of Tokushima, Tokushima, Japan
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