1
|
Gökharman FD, Şenbil DC, Aydin S, Karavaş E, Özdemir Ö, Yalçın AG, Koşar PN. Chronic otitis media and middle ear variants: Is there relation? World J Clin Cases 2023; 11:3481-3490. [PMID: 37383905 PMCID: PMC10294180 DOI: 10.12998/wjcc.v11.i15.3481] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/27/2023] [Accepted: 04/21/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Chronic otitis media (COM) is an inflammatory disease that lasts for a long time. It is common in developing countries. Hearing loss can result from COM. The relationship between variations in middle ear anatomy and COM was investigated in our study.
AIM To compare the prevalence of middle ear anatomic variations between the cases with COM and healthy individuals.
METHODS This retrospective study included 500 patients with COM and 500 healthy controls. The presence of those variants was determined: Koerner’s septum, facial canal dehiscence, high jugular bulb, jugular bulb dehiscence, jugular bulb diverticulum, sigmoid sinus anterior location and deep tympanic recesses.
RESULTS A total of 1000 temporal bones were examined. The incidences of these variants were respectively (15.4%-18.6%), (38.6%-41.2%), (18.2%-4.6%), (2.6%-1.2%), (1.2%-0%), (8.6%-0%), (0%-0%). It was observed that only high jugular bulb (P < 0.001) and anteriorly located sigmoid sinus frequencies (P = 0.002) in the case group were statistically significantly higher than the control groups.
CONCLUSION COM is a multifactorial disease and variants of middle ear have always been important in terms of potential risk for complication during surgery but rarely associated with COM as an etiology or as a consequence of the disease. We didn't find a positive correlation between COM and Koerner’s septum and facial canal defect. We ended up with a significant conclusion with the variants of dural venous sinuses -high jugular bulb, dehiscence of jugular bulb, diverticulum of jugular bulb and anteriorly located sigmoid sinus- that have been studied less and frequently associated with inner ear illnesses.
Collapse
Affiliation(s)
- Fatma Dilek Gökharman
- Department of Radiology, Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Düzgün Can Şenbil
- Department of Radiology, Erzincan Binali Yıldırım University, Erzincan 24100, Turkey
| | - Sonay Aydin
- Department of Radiology, Erzincan Binali Yıldırım University, Erzincan 24100, Turkey
| | - Erdal Karavaş
- Department of Radiology, Bandırma 17 Eylül University, Balıkesir 10200, Turkey
| | - Özge Özdemir
- Department of Radiology, Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Arzu Gülşah Yalçın
- Department of Radiology, Ankara Training and Research Hospital, Ankara 06230, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara 06230, Turkey
| |
Collapse
|
2
|
Lafcı O, Celepli P, Seher Öztekin P, Koşar PN. DCE-MRI Radiomics Analysis in Differentiating Luminal A and Luminal B Breast Cancer Molecular Subtypes. Acad Radiol 2023; 30:22-29. [PMID: 35595629 DOI: 10.1016/j.acra.2022.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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: 03/07/2022] [Revised: 03/30/2022] [Accepted: 04/06/2022] [Indexed: 12/26/2022]
Abstract
RATIONALE AND OBJECTIVES The aim of the present study was to investigate the association between Luminal A and Luminal B molecular subtypes and radiomic features of dynamic contrast‑enhanced magnetic resonance imaging in patients with invasive breast cancer. MATERIALS AND METHODS Seventy-three patients with histopathologically proven invasive ductal cancer (IDC) were selected. Tumors were classified into molecular subtypes: Luminal A (estrogen receptor (ER)-positive and/or progesterone receptor (PR)-positive, human epidermal growth factor receptor type 2 (HER2) -negative, proliferation marker Ki-67<20) and Luminal B (ER-positive and/or PR-positive, HER2-positive or HER2-negative with high Ki-67 ≥20). A total of 81 tumoral lesions were evaluated on T1-weighted fat-suppressed sagittal post-contrast late-phase MRI images after the required "pre-process" steps and 3D segmentations were made. Forty-three radiomic features including: 1 conventional, 4 shape, 6 histogram, 7 Grey-Level Co-occurrence Matrix (GLCM), 11 Grey-Level Run-Length Matrix (GLRLM), 3 Neighborhood Grey-Level Difference Matrix (NGLDM), 11 Grey-Level Zone-Length Matrix (GLZLM) were extracted by using the software LIFEX. RESULTS A statistically significant difference was found in radiomic features including; a) Histogram: "skewness", b) Shape: "volume-ml, volume-voxel," c) GLCM: "entropy.log10, entropy.log2, energy", d) GLRLM: "GLNU, RLNU, HGRE," e) NGLDM: "busyness," f) GLZLM: "GLNU, HGZE, ZLNU, SZE" between two different molecular subtypes. The model combining Shape-volume (ml) and GLZLM-HGZE yielded 0.746 area under the curve (AUC), 0.744 sensitivity, 0.643 specificity and 0.694 accuracy. CONCLUSION Radiomic properties that may distinguish Luminal A and Luminal B molecular subtypes of IDC were identified. The radiomic features were thought to reflect the intratumoral heterogeneity in molecular subtypes. This study demonstrated that the characterization of Luminal A and Luminal B tumors could be made non-invasively by radiomics analysis.
Collapse
Affiliation(s)
- Oğuz Lafcı
- Department of Radiology, Ankara Training and Research Hospital, University of Health Sciences, Hacettepe Mh. Ulucanlar Cd. No:89 Altındağ, Ankara, Turkey.
| | - Pınar Celepli
- Department of Pathology, Ankara Training and Research Hospital, University of Health Sciences, Ankara, Turkey
| | - Pelin Seher Öztekin
- Department of Radiology, Ankara Training and Research Hospital, University of Health Sciences, Hacettepe Mh. Ulucanlar Cd. No:89 Altındağ, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, University of Health Sciences, Hacettepe Mh. Ulucanlar Cd. No:89 Altındağ, Ankara, Turkey
| |
Collapse
|
3
|
Lafcı O, Ergün E, Yiğit H, Koşar PN. Uterine abscess as an appendicitis complication: a case report. J Med Imaging Radiat Sci 2022; 53:314-316. [PMID: 35260352 DOI: 10.1016/j.jmir.2022.02.008] [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] [Received: 07/31/2021] [Accepted: 02/14/2022] [Indexed: 11/28/2022]
|
4
|
Koşar PN, Ergün E, Gökharman D. Can Medialization of Acetabular Rim Be a Prognostic Factor in Treatment of Developmental Dysplasia of Hip? J Ultrasound Med 2022; 41:645-652. [PMID: 34008885 DOI: 10.1002/jum.15745] [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: 02/02/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVES To investigate if acetabular rim medialization (ARM) can be used as a new parameter in determining the treatment choice and duration in Graf type III and IV hips. METHODS Among the 12,300 infants who underwent hip ultrasound (US) according to Graf's method between 2015 and 2019, 26 infants (9 had bilateral pathology hence 35 hips) with type III and IV hips, whose follow-up data could be obtained were included in the study. Age of the infants at the initial diagnosis, ARM measurement, the duration of harness treatment, and the treatment results were noted. To determine the extent of ARM, distance between a line that is drawn tangential to the iliac wing and acetabular rim was measured. RESULTS In cases with poor prognosis, ARM measurement was 6 to 8.5 mm on the right hip and 4 to 9 mm on the left hip. Bilaterality or unilaterality, left or right pathology, and gender did not have a significant effect on the prognosis (P >.05). Age at the initial diagnosis and ARM had significant effects on treatment success (P = .04, P = .00, respectively). In predicting the prognosis, ARM was found to be more successful than age (AUC = 0.95 versus AUC = 0.68). When these two variables were evaluated together, the success in predicting the prognosis significantly increased (AUC = 0.98). CONCLUSIONS ARM measurement may have an important role in determining the treatment method and duration in Graf type III and IV hips. It can be used as a prognostic factor alone or in combination with treatment initiation time. When the two factors are combined, prognostic value significantly increases.
Collapse
Affiliation(s)
- Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Elif Ergün
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Dilek Gökharman
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
5
|
Yılmaz Demirci N, Uğraş Dikmen A, Taşçı C, Doğan D, Arslan Y, Öcal N, Taşar M, Bozlar U, Artuk C, Yılmaz G, Karacaer Z, Avcı İY, Tuncer Ertem G, Erdinç FŞ, Kınıklı S, Altun Demircan Ş, Ergün E, Nercis Koşar P, Karakoç AE, Gökçek A, Aloğlu M, Gülgösteren S, Atikcan Ş, Akçay Ş, Erol Ç, Hekimoğlu K, Cerit MN, Erbaş G, Özger HS, Bozdayı G, Şenol E, Yurdakul AS, Yılmaz A. Relationship between chest computed tomography findings and clinical conditions of coronavirus disease (COVID-19): A multicentre experience. Int J Clin Pract 2021; 75:e14459. [PMID: 34105857 DOI: 10.1111/ijcp.14459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/06/2021] [Indexed: 12/12/2022] Open
Abstract
AIMS This study aimed to investigate the clinical and chest computed tomography (CT) features associated with clinical parameters for coronavirus disease (COVID-19) in the capital of Turkey, Ankara. MATERIALS AND METHODS Epidemiological, clinical features, laboratory findings and radiological characteristics of 1563 hospitalised patients with COVID-19 in Ankara were collected, reviewed and analysed in this study. The risk factors associated with disease severity were investigated. RESULTS Non-severe (1214; 77.7%) and severe cases (349; 22.3%) were enrolled in the study. Compared with the non-severe group, the severe group were significantly older and had more comorbidities (ie, hypertension, diabetes mellitus, cardiovascular disease and chronic kidney disease). Smoking was more common in the severe group. Severe patients had higher respiratory rates and higher incidences of cough and dyspnoea compared with non-severe patients. Compared with the non-severe patients, the severe patients had increased C-reactive protein (CRP), procalcitonin, neutrophil to lymphocyte ratio (NLR) and CRP/albumin ratio and decreased albumin. The occurrence rates of consolidation, subpleural sparing, crazy-paving pattern, cavity, halo sign, reversed halo sign, air bronchogram, pleural thickening, micronodule, subpleural curvilinear line and multilobar and bilateral involvement in the CT finding of the severe patients were significantly higher than those of the non-severe patients. CONCLUSIONS Many factors are related to the severity of COVID-19, which can help clinicians judge the severity of the patient and evaluate the prognosis. This cohort study revealed that male sex, age (≥55 years), patients with any comorbidities, especially those with cardiovascular disease, dyspnoea, increased CRP, D-dimer and NLR, and decreased lymphocyte count and CT findings of consolidation and multilobar involvement were predictors of severe COVID-19.
Collapse
Affiliation(s)
| | - Asiye Uğraş Dikmen
- Department of Public Health, Gazi University Medical Faculty, Ankara, Turkey
| | - Cantürk Taşçı
- Department of Chest Diseases, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Deniz Doğan
- Department of Chest Diseases, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Yakup Arslan
- Department of Chest Diseases, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Nesrin Öcal
- Department of Chest Diseases, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Mustafa Taşar
- Department of Radiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Uğur Bozlar
- Department of Radiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Cumhur Artuk
- Department of Infectious Diseases and Clinical Microbiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Gülden Yılmaz
- Department of Infectious Diseases and Clinical Microbiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Zehra Karacaer
- Department of Infectious Diseases and Clinical Microbiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - İsmail Yaşar Avcı
- Department of Infectious Diseases and Clinical Microbiology, Gulhane School of Medicine, University of Health Sciences, Ankara, Turkey
| | - Günay Tuncer Ertem
- Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Fatma Şebnem Erdinç
- Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Sami Kınıklı
- Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Şerife Altun Demircan
- Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Elif Ergün
- Department of Radiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Ayşe Esra Karakoç
- Department of Medical Microbiology, University of Health Sciences Ankara Training and Research Hospital, Ankara, Turkey
| | - Atila Gökçek
- Department of Radiology, University of Health Sciences Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Turkey
| | - Melike Aloğlu
- Department of Chest Diseases, University of Health Sciences Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Turkey
| | - Sevtap Gülgösteren
- Department of Chest Diseases, University of Health Sciences Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Turkey
| | - Şükran Atikcan
- Department of Chest Diseases, University of Health Sciences Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Turkey
| | - Şule Akçay
- Department of Chest Diseases, Baskent University Medical Faculty, Ankara, Turkey
| | - Çiğdem Erol
- Department of Infectious Diseases and Clinical Microbiology, Baskent University Medical Faculty, Ankara, Turkey
| | - Koray Hekimoğlu
- Department of Radiology, Baskent University Medical Faculty, Ankara, Turkey
| | - Mahi Nur Cerit
- Department of Radiology, Gazi University Medical Faculty, Ankara, Turkey
| | - Gonca Erbaş
- Department of Radiology, Gazi University Medical Faculty, Ankara, Turkey
| | - Hasan Selçuk Özger
- Department of Infectious Diseases and Clinical Microbiology, Gazi University Medical Faculty, Ankara, Turkey
| | - Gülendam Bozdayı
- Department of Medical Microbiology, Division of Medical Virology, Gazi University Medical Faculty, Ankara, Turkey
| | - Esin Şenol
- Department of Infectious Diseases and Clinical Microbiology, Gazi University Medical Faculty, Ankara, Turkey
| | | | - Aydın Yılmaz
- Department of Chest Diseases, University of Health Sciences Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
6
|
Tek C, Öztekin PS, Celepli P, Uçar F, Koşar PN. Using the Superb Microvascular Imaging Method in the Distinction of Intraductal Papilloma and Duct Ectasia With Secretion. J Ultrasound Med 2021; 40:269-277. [PMID: 32681668 DOI: 10.1002/jum.15396] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/26/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES To investigate the diagnostic value of a Superb Microvascular Imaging (SMI; Toshiba Medical Systems, Tokyo, Japan) Doppler examination for distinguishing intraductal papilloma (IDP) from duct ectasia with secretion in lesions smaller than 1 cm compared to color Doppler imaging (CDI) and power Doppler imaging (PDI). METHODS Fifty-nine lesions were evaluated by grayscale ultrasound, CDI, PDI, and SMI. Biopsied tissue samples were analyzed. Ultrasound evaluations and Doppler examinations were performed with a Toshiba Aplio 500 device. The lesions were divided into 2 groups, secretion and IDP, according to the pathologic results. Color Doppler imaging, PDI, and SMI data were compared statistically to investigate their diagnostic values. RESULTS Of the 59 lesions, 22 were secretion, and 37 were IDP. The mean diameters ± SDs were 4.7 ± 0.6 mm in the secretion group and 4.9 ± 0.8 mm in the IDP group (P = .315). There was no significant difference in grayscale ultrasound features such as shape or margin between the groups (P > .05). No significant difference was found between the groups in CDI or PDI characteristics (P > .999; P = .702, respectively). The color SMI evaluation results showed no vascularity in 18 (81.8%) lesions in the secretion group. Vascularity was detected in 32 patients (86.5%) in the IDP group. In the receiver operating characteristic analysis, the areas under the curve were calculated as 0.842 (95% confidence interval [CI], 0.728-0.925) for SMI, 0.522 (95% CI, 0.388-0.654) for PDI, and 0.518 (95% CI, 0.384-0.650) for CDI. CONCLUSIONS Superb Microvascular Imaging is more accurate and has more diagnostic ability than CDI or PDI in distinguishing small IDPs from duct ectasia with secretion because of its ability to visualize slow flow speeds of vascular structures.
Collapse
Affiliation(s)
- Cihat Tek
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pelin Seher Öztekin
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Celepli
- Department of Pathology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Funda Uçar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
7
|
Yiğit H, Ergün E, Koşar PN. Which morphological abnormalities better define the elongation of transverse aortic arch: a magnetic resonance angiography study. Folia Morphol (Warsz) 2020; 80:583-589. [PMID: 32844387 DOI: 10.5603/fm.a2020.0100] [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: 06/19/2020] [Revised: 07/28/2020] [Accepted: 08/13/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The aim of the study is to investigate the relation between morphological abnormalities that might indicate elongation of transverse aortic arch (ETA) and various aortic and thoracic measurements, and to determine which morphological criteria define the elongated transverse arch better. MATERIALS AND METHODS Patients under 40 years of age who underwent contrast enhanced thoracic magnetic resonance angiography were included in the study. Images were evaluated for the presence of morphological arch abnormalities such as late take off (LTO) of left subclavian artery (LSA), flattening of the arch, and kinking at the posterior or anterior contour of the lesser curvature. Various aortic and thoracic measurements, including the distance between the orifices of the left common carotid artery (LCCA) and LSA, were made. Statistical relation between morphological abnormalities and these measurements was analysed. The effect of morphological abnormalities and their combinations on the distance between LCCA and LSA orifices was evaluated by linear regression analysis. RESULTS Ninety three cases were included in the study. All morphological abnormalities and most of their combinations show statistically significant relation with longer LCCA to LSA distance. The parameters that most affected this distance were combination of flattening with LTO of LSA, anterior kinking and combination of anterior kinking with both flattening and LTO, respectively. CONCLUSIONS Our study showed that the finding which best defines ETA is the combination of LTO and arch flattening. Therefore, we recommend using this combination in the diagnosis of ETA instead of the classical diagnostic criteria including combination of LTO and posterior kinking.
Collapse
Affiliation(s)
- H Yiğit
- Department of Radiology, University of Health Sciences, Faculty of Medicine, Ankara Health Practice and Research Centre, Ankara, Turkey.
| | - E Ergün
- Department of Radiology, University of Health Sciences, Faculty of Medicine, Ankara Health Practice and Research Centre, Ankara, Turkey
| | - P N Koşar
- Department of Radiology, University of Health Sciences, Faculty of Medicine, Ankara Health Practice and Research Centre, Ankara, Turkey
| |
Collapse
|
8
|
Abstract
Abstract
Background
MRI is successful in showing the anatomy of probable pathologies of the central nervous system. Although it may not be sufficient to reveal physiological and metabolic changes, advanced MRI techniques, such as perfusion and permeability MRI, are the key to overcoming these limitations. The aim of this study was to detect the efficacy of permeability and perfusion MRI techniques.
Results
The study included 38 patients with a pathology result of primary brain glioma. The permeability MRI (Ktrans, Ve), perfusion MRI values (CBV, CBF), and pathology results were evaluated. The high-grade group included 22 patients, and the low-grade group, 16 patients. Mean CBV and CBF, median Ktrans, and Ve values were higher in the high-grade group. All parameters tended to elevate with grade and had a positive correlation. CBV > 2.25, with sensitivity and specificity of 100%, CBF > 2.02, with sensitivity and specificity of 100%, Ktrans > 0.043, with sensitivity of 81.82% and specificity of 100%, and Ve > 0.255, with sensitivity and specificity of 100%, can predict high grade.
Conclusion
Perfusion and permeability MRI can be used safely for the differentiation of high- and low-grade gliomas and for the prediction of glioma grades.
Collapse
|
9
|
Turgut A, Yılmaz BK, Ergun E, Koşar PN. Correlation of the Severity of Carotid Artery Stenosis Identified by 64 Detected CT using ‘‘CC’’ Method with Color Doppler Ultrasound Findings. Haseki 2019. [DOI: 10.4274/haseki.galenos.2019.4916] [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: 12/01/2022] Open
|
10
|
Lafcı O, Öztekin PS, Koşar PN. Cavernous hemangioma of the breast: Radiologic and pathologic findings. Breast J 2019; 26:531-533. [PMID: 31562669 DOI: 10.1111/tbj.13566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Oğuz Lafcı
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pelin Seher Öztekin
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
11
|
Savaş S, Topaloğlu N, Kazcı Ö, Koşar PN. Classification of Carotid Artery Intima Media Thickness Ultrasound Images with Deep Learning. J Med Syst 2019; 43:273. [PMID: 31278481 DOI: 10.1007/s10916-019-1406-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 04/16/2019] [Accepted: 06/25/2019] [Indexed: 02/01/2023]
Abstract
Cerebrovascular accident due to carotid artery disease is the most common cause of death in developed countries following heart disease and cancer. For a reliable early detection of atherosclerosis, Intima Media Thickness (IMT) measurement and classification are important. A new method for decision support purpose for the classification of IMT was proposed in this study. Ultrasound images are used for IMT measurements. Images are classified and evaluated by experts. This is a manual procedure, so it causes subjectivity and variability in the IMT classification. Instead, this article proposes a methodology based on artificial intelligence methods for IMT classification. For this purpose, a deep learning strategy with multiple hidden layers has been developed. In order to create the proposed model, convolutional neural network algorithm, which is frequently used in image classification problems, is used. 501 ultrasound images from 153 patients were used to test the model. The images are classified by two specialists, then the model is trained and tested on the images, and the results are explained. The deep learning model in the study achieved an accuracy of 89.1% in the IMT classification with 89% sensitivity and 88% specificity. Thus, the assessments in this paper have shown that this methodology performs reasonable results for IMT classification.
Collapse
Affiliation(s)
- Serkan Savaş
- Faculty of Technology, Computer Engineering Department Ph.D, Gazi University, Ankara, Turkey.
| | - Nurettin Topaloğlu
- Faculty of Technology, Computer Engineering Department, Gazi University, Ankara, Turkey
| | - Ömer Kazcı
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
12
|
Fatihoğlu E, Biri S, Aydın S, Ergün E, Koşar PN. MRI in Evaluation of Solitary Pulmonary Nodules. Turk Thorac J 2019; 20:90-96. [PMID: 30958979 DOI: 10.5152/turkthoracj.2018.18049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 08/12/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The aim of this study is to assess magnetic resonance imaging (MRI), diffusion-weighted imaging (DWI), T2-weighted image (T2WI), and apparent diffusion coefficient (ADC) maps' threshold values before computed tomography (CT)-guided transthorasic biopsy in solitary pulmonary nodules (SPN) by describing tumoral cell density. MATERIALS AND METHODS Patients who had SPN were prospectively evaluated with MRI (T1WI, T2WI) and DWI (b=0, b=500, b=1000).The ADC maps were created for each patient. Before the biopsy, lesion muscle ratios (LMR) at T2WI, ADC value, and lesion spinal cord ratio at each b values were noted. The measurements were correlated with the histopathological results. RESULTS A total of 53 patients were included in the study: 30.2% (n=16) were female, and 69.8% (n=37) were male. Among them, 17 lesions (32.1%) were benign, and 36 lesions (67.9%) were malignant. The age varied between 40 and 82 years, with a mean of 61.7±9.1 years. The SPN diameters were between 10 and 30 mm, and the median was 24 mm. The LSR0 and LMR values were not statistically significant in detecting malignancy. LSR500 >0.53 value can predict malignancy with 100% sensitivity and 70.6% specificity. LSR1000 >0.53 can predict malignancy with 88.9% sensitivity and 88.2% specificity. Setting the cut-off value at 0.9×10-3, the ADC values had a sensitivity of 72.2% and a specificity of 88.2% for predicting malignancy. CONCLUSION For SPN follow-up, a new following-up protocol can be safely established using DWI and ADC mapping. Using these MRI parameters might decrease unnecessary biopsy rates and complications of biopsies.
Collapse
Affiliation(s)
- Erdem Fatihoğlu
- Clinic of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Suzan Biri
- Clinic of Radiology, Koru Hospital, Ankara, Turkey
| | - Sonay Aydın
- Clinic of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Elif Ergün
- Clinic of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Pınar Nercis Koşar
- Clinic of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
13
|
Ece B, Yiğit H, Ergün E, Koşar PN. Elongated transverse aortic arch in subjects without turner syndrome: A preliminary computed tomography study. Clin Anat 2018; 31:887-890. [PMID: 29770485 DOI: 10.1002/ca.23209] [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: 03/11/2018] [Accepted: 05/02/2018] [Indexed: 11/05/2022]
Abstract
The purpose of the present study was to investigate the presence of an elongated transverse aortic arch (ETA), which has been reported to be specific for Turner syndrome, in a population without Turner syndrome. A set of 1,012 patients (713 men, 299 women) under 40 years old, who underwent thoracic CT examination in our radiology department between July 2016 and December 2016, were included in the study. CT scans were performed by 16-slice scanners. CT images were retrieved from the picture archiving and communication system and retrospectively re-assessed by two radiologists. Diagnostic criteria for ETA, which are late take-off of the left subclavian artery (LSA), convex kinking of the inferior aortic arch along the lesser curvature and flattening of the transverse aortic arch, were searched in each case. The mean age of the study population was 25.5 ± 10.0 years. Late take-off of the LSA was detected in 17 (1.7%) subjects (10 men, 7 women). In six of these, the other criteria for ETA were not met. However, in the other 11 (1.1% of the study population) cases, in addition to late take-off of the LSA, aortic morphology was compatible with ETA. The dimensions of the aortic root and the ascending and descending aorta were within normal limits in all 17 cases. Our results supported the presence of ETA in subjects without Turner syndrome with ∼1.1% frequency. This is the first preliminary report regarding the frequency of ETA in non-Turner subjects. Clin. Anat. 31:887-890, 2018. © 2018 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- B Ece
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - H Yiğit
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - E Ergün
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| | - P N Koşar
- Department of Radiology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
14
|
Gökharman FD, Aydın S, Fatihoğlu E, Koşar PN. Pediatric Emergency Care Applied Research Network head injuryprediction rules: on the basis of cost and effectiveness. Turk J Med Sci 2017; 47:1770-1777. [PMID: 29306237 DOI: 10.3906/sag-1703-206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background/aim: Head injuries are commonly seen in the pediatric population. Noncontrast enhanced cranial CT is the method of choice to detect possible traumatic brain injury (TBI). Concerns about ionizing radiation exposure make the evaluation more challenging. The aim of this study was to evaluate the effectiveness of the Pediatric Emergency Care Applied Research Network (PECARN) rules in predicting clinically important TBI and to determine the amount of medical resource waste and unnecessary radiation exposure.Materials and methods: This retrospective study included 1041 pediatric patients presented to the emergency department. The patients were divided into subgroups of "appropriate for cranial CT", "not appropriate for cranial CT" and "cranial CT/observation of patient; both are appropriate". To determine the effectiveness of the PECARN rules, data were analyzed according to the presence of pathological findings Results: "Appropriate for cranial CT" results can predict pathology presence 118,056-fold compared to the "not appropriate for cranial CT" results. With "cranial CT/observation of patient; both are appropriate" results, pathology presence was predicted 11,457-fold compared to "not appropriate for cranial CT" results.Conclusion: PECARN rules can predict pathology presence successfully in pediatric TBI. Using PECARN can decrease resource waste and exposure to ionizing radiation.
Collapse
|
15
|
Durhan G, Öztekin PS, Ünverdi H, Değirmenci T, Durhan A, Karakaya J, Nercis Koşar P, Necip Köseoğlu E, Hücümenoğlu S. Do Histopathological Features and Microcalcification Affect the Elasticity of Breast Cancer? J Ultrasound Med 2017; 36:1101-1108. [PMID: 28240797 DOI: 10.7863/ultra.16.06064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate any association between histological grade, molecular subtypes of breast cancer, and strain elastography, and to investigate whether microcalcification affects the stiffness of tumor in breast cancers with the same histological grade. METHODS Between April 2015 and March 2016, 94 lesions of 94 patients with the diagnosis of invasive ductal carcinoma were included in the study. Strain elastography was performed on all patients before biopsy. Histological grades (Grades 1, 2, and 3), molecular subtypes (luminal A, luminal B, Her-2, and basal-like), and strain ratio (SR) were compared. In the same histological grades, patients were divided into two groups according to the presence of microcalcifications, and the groups were compared with each other. RESULTS Compared with Grades 1 (20.5) and 2 (23.7), Grade 3 (11.7) showed lower SR values (Grade 3-2, P = .01; Grade 3-1, P = .2). The groups with microcalcification had slightly higher SR in all histological grades, but not of statistical significance. In molecular subtypes, luminal A and B demonstrated higher SR, whereas HER2 and basal-like had lower SR (P > .05 for all group comparisons). CONCLUSIONS Grade 3 invasive ductal carcinomas are different from other grades with lower SR values. The presence of microcalcifications and molecular subtypes do not affect elasticity like a high histological grade does.
Collapse
Affiliation(s)
- Gamze Durhan
- Department of Radiology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Pelin Seher Öztekin
- Department of Radiology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Hatice Ünverdi
- Department of Pathology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Tülin Değirmenci
- Department of Radiology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Abdullah Durhan
- Department of General Surgery, Surgical Oncology Unit, Ankara University Medical School, Ankara, Turkey
| | - Jale Karakaya
- Department of Biostatistics, Hacettepe University Medical School, Ankara, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Enver Necip Köseoğlu
- Department of Radiology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| | - Sema Hücümenoğlu
- Department of Pathology, Ministry of Health Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
16
|
Gülşen Z, Koşar PN, Gökharman FD. Comparison of multidetector computed tomography findings with clinical and laboratory data in pulmonary thromboembolism. Pol J Radiol 2015; 80:252-8. [PMID: 26029288 PMCID: PMC4434981 DOI: 10.12659/pjr.893793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 02/28/2015] [Indexed: 11/29/2022] Open
Abstract
Background Pulmonary thromboembolism (PTE) is a common disease with a high mortality rate that is difficult to diagnose and treat. Because of the variety of clinical symptoms and signs, it is difficult to diagnose. Therefore, the diagnosis of PTE is mainly confirmed by imaging techniques. The aim of this study was to evaluate whether there is any corelation of the Wells rule, D-dimer and LDH values with computerized tomography pulmonary angiography (CTPA) findings in PTE diagnosis. Material/Methods A consecutive series of 62 patients, which included 31 males and 31 females, with high/moderate/low risk of embolism according to Wells pulmonary embolism score, selected from the emergency service and/or outpatient clinic, enrolled in this prospective study. The patients with clinical or laboratory findings of elevated D-dimer level or elevated lactate dehydrogenase (LDH) level were suspected of embolism and underwent tomography. Results PTE was detected in 26 patients (42%). A significant difference was not detected between tomography finding positive and negative embolisms in the patient group in terms of age or gender distribution (P=0.221 and P=0.416, respectively). No significant difference was detected between tomography finding positive and negative embolisms in the patient group in terms of elevated LDH or/and D-dimer levels (P=0.263 and P=1.000, respectively). The distribution of low-risk-factor patients in the non-embolism group, and the distribution of high-risk-factor patients in the embolism-positive group was statistically significantly high (P<0.001). There was no statistically significant difference between the groups (P=0.053). Correlation test showed no correlation between LDH and D-dimer levels. (r=0.214, P=0.180). Conclusions In conclusion, when a patient presents with chest pain, our carrying out LDH and D-Dimer tests will not exclude PTE without CTPA. However, we suggest that LDH isoenzymes should be studied in further research.
Collapse
Affiliation(s)
- Zuhal Gülşen
- Department of Radiology, Kızıltepe State Hospital, Mardin, Turkey
| | - Pınar Nercis Koşar
- Department of Radiology, Ankara Education and Research Hospital, Ankara, Turkey
| | | |
Collapse
|
17
|
Ergun E, Şimşek B, Koşar PN, Yılmaz BK, Turgut AT. Anatomical variations in branching pattern of arcus aorta: 64-slice CTA appearance. Surg Radiol Anat 2012; 35:503-9. [DOI: 10.1007/s00276-012-1063-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 12/13/2012] [Indexed: 11/28/2022]
|
18
|
Acar HV, Yiğit H, Korkulu F, Ceyhan A, Koşar PN, Dikmen B. Does oxygen use during general anesthesia cause an artifact in magnetic resonance images? J Clin Exp Invest 2012. [DOI: 10.5799/ahinjs.01.2012.04.0206] [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: 11/23/2022] Open
|