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  1. Article ; Online: GPT-4's Performance on the European Board of Interventional Radiology Sample Questions.

    Beşler, Muhammed Said

    Cardiovascular and interventional radiology

    2024  

    Language English
    Publishing date 2024-03-26
    Publishing country United States
    Document type Letter
    ZDB-ID 603082-8
    ISSN 1432-086X ; 0342-7196 ; 0174-1551
    ISSN (online) 1432-086X
    ISSN 0342-7196 ; 0174-1551
    DOI 10.1007/s00270-024-03711-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 1378: Show issues Location:
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  2. Article ; Online: The accuracy of large language models in RANZCR's clinical radiology exam sample questions.

    Beşler, Muhammed Said

    Japanese journal of radiology

    2024  

    Language English
    Publishing date 2024-04-16
    Publishing country Japan
    Document type Letter
    ZDB-ID 2488907-6
    ISSN 1867-108X ; 1867-1071
    ISSN (online) 1867-108X
    ISSN 1867-1071
    DOI 10.1007/s11604-024-01574-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 2249: Show issues Location:
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  3. Article ; Online: The Accuracy of the Multimodal Large Language Model GPT-4 on Sample Questions From the Interventional Radiology Board Examination.

    Beşler, Muhammed Said

    Academic radiology

    2024  

    Language English
    Publishing date 2024-04-25
    Publishing country United States
    Document type Letter
    ZDB-ID 1355509-1
    ISSN 1878-4046 ; 1076-6332
    ISSN (online) 1878-4046
    ISSN 1076-6332
    DOI 10.1016/j.acra.2024.03.023
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    Zs.A 4594: Show issues Location:
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  4. Article ; Online: The performance of the multimodal large language model GPT-4 on the European board of radiology examination sample test.

    Beşler, Muhammed Said

    Japanese journal of radiology

    2024  

    Language English
    Publishing date 2024-04-03
    Publishing country Japan
    Document type Letter
    ZDB-ID 2488907-6
    ISSN 1867-108X ; 1867-1071
    ISSN (online) 1867-108X
    ISSN 1867-1071
    DOI 10.1007/s11604-024-01565-9
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    Zs.A 2249: Show issues Location:
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  5. Article ; Online: Effect of sarcopenia on mortality in acute stroke patients receiving endovascular treatment.

    Beşler, Muhammed Said / Çay, Nurdan / Sayın, Bige

    Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

    2024  , Page(s) 15910199241227465

    Abstract: Background: To investigate the effect of sarcopenia on mortality in patients with acute ischemic stroke caused by anterior circulation large artery occlusion who underwent endovascular treatment.: Methods: Acute ischemic stroke patients (n = 194) ... ...

    Abstract Background: To investigate the effect of sarcopenia on mortality in patients with acute ischemic stroke caused by anterior circulation large artery occlusion who underwent endovascular treatment.
    Methods: Acute ischemic stroke patients (n = 194) treated with mechanical thrombectomy who underwent chest computed tomography between 2019 and 2022 (median age, 69 [interquartile range: 61-77], 95 females, 99 males) were evaluated retrospectively. The cross-sectional area and density of the pectoralis muscle [pectoralis muscle area (PMA) and pectoralis muscle density (PMD)] at the level of the aortic arch and the erector spinae muscle at the T12 level [erector spinae muscle area (ESMA) and erector spinae muscle density (ESMD)] were measured. The association between skeletal muscle parameters and mortality outcomes was investigated using the receiver operating characteristic (ROC) curve and multivariable logistic regression analyses.
    Results: The 90-day mortality rate was 32% in the study population (n = 62). The ROC analysis revealed that ESMD [area under the curve (AUC): 0.765] and PMD (AUC: 0.759) performed best in the prediction of 90-day mortality. In the multivariable logistic regression analysis, PMD [odds ratio (OR): 0.896; 95% confidence interval (CI): 0.846-0.948;
    Conclusion: PMD, ESMA, and ESMD may be risk factors for 90-day mortality after mechanical thrombectomy for acute ischemic stroke.
    Language English
    Publishing date 2024-01-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1354913-3
    ISSN 2385-2011 ; 1591-0199 ; 1123-9344
    ISSN (online) 2385-2011
    ISSN 1591-0199 ; 1123-9344
    DOI 10.1177/15910199241227465
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 6325: Show issues Location:
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  6. Article ; Online: A New Approach to Predict the Histological Variants of Bladder Urothelial Carcinoma: Machine Learning-Based Radiomics Analysis.

    Beşler, Muhammed Said / Koç, Ural

    Academic radiology

    2022  Volume 29, Issue 11, Page(s) 1690–1691

    MeSH term(s) Humans ; Urinary Bladder Neoplasms/diagnostic imaging ; Urinary Bladder Neoplasms/pathology ; Carcinoma, Transitional Cell ; Urinary Bladder/diagnostic imaging ; Urinary Bladder/pathology ; Radiomics ; Machine Learning ; Retrospective Studies
    Language English
    Publishing date 2022-09-21
    Publishing country United States
    Document type Editorial
    ZDB-ID 1355509-1
    ISSN 1878-4046 ; 1076-6332
    ISSN (online) 1878-4046
    ISSN 1076-6332
    DOI 10.1016/j.acra.2022.07.023
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    Zs.A 4594: Show issues Location:
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  7. Article ; Online: Unveiling the potential of strain elastography in perihilar cholangiocarcinoma biopsies.

    Özdemir, Mustafa / Koç, Ural / Gökhan, Muhammet Batuhan / Beşler, Muhammed Said

    Abdominal radiology (New York)

    2024  

    Abstract: Purpose: This study was conducted to investigate the effectiveness of strain elastography in guiding precise and sufficient tissue sampling for perihilar cholangiocarcinoma (CCA) biopsies.: Methods: Our retrospective analysis included 23 liver ... ...

    Abstract Purpose: This study was conducted to investigate the effectiveness of strain elastography in guiding precise and sufficient tissue sampling for perihilar cholangiocarcinoma (CCA) biopsies.
    Methods: Our retrospective analysis included 23 liver biopsies conducted between March 2019 and July 2022 for suspected perihilar CCA. An experienced radiologist performed the biopsies via an ultrasound machine with elastography configuration. Tissue stiffness color maps were used for guiding when the biopsies were performed. Strain index value calculations were made by radiologists on recorded images.
    Results: Patient demographics revealed a mean age of 65.17 ± 9.25 years, with a gender distribution of six females and 17 males. Gray-scale examinations unveiled diverse echogenic characteristics in liver lesions. Elastography-guided biopsies demonstrated no need for repeats, while gray-scale biopsies necessitated re-biopsy in four patients, resulting in cholangiocarcinoma diagnosis (P = 0.037). Strain index values showcased strong inter- and intra-observer agreements (P < 0.001). Notably, no post-biopsy complications emerged in either study group.
    Conclusion: The diagnostic advantage of elastography, particularly in enhancing accuracy in challenging isoechoic lesions, was demonstrated, although the substantial overlap between strain index values of benign and malignant liver masses limits clinical usefulness of this technique.
    Language English
    Publishing date 2024-04-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2839786-1
    ISSN 2366-0058 ; 2366-004X
    ISSN (online) 2366-0058
    ISSN 2366-004X
    DOI 10.1007/s00261-024-04255-2
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    Zs.A 1262: Show issues Location:
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  8. Article ; Online: Ground level falls: computed tomography findings and clinical outcomes by age groups.

    Parlak, Selcuk / Çıvgın, Esra / Beşler, Muhammed Said / Gündoğdu, Seçil

    Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES

    2023  Volume 29, Issue 6, Page(s) 710–716

    Abstract: Background: This study aimed to determine injury patterns in ground level falls (GLFs) and investigate the effect of age on the severity of injury.: Methods: We retrospectively identified 4,712 patients who presented to a Level 1 trauma center due to ...

    Title translation Zemin seviyesinden düşmeler: Yaş gruplarına göre bilgisayarlı tomografi bulguları ve klinik sonuçlar.
    Abstract Background: This study aimed to determine injury patterns in ground level falls (GLFs) and investigate the effect of age on the severity of injury.
    Methods: We retrospectively identified 4,712 patients who presented to a Level 1 trauma center due to GLFs and analyzed the data of 1,214 patients who underwent computed tomography (CT). Demographics, torso examination findings, and injuries detected on CT were recorded. To investigate the effect of age on injury severity, the patients were grouped as those aged <65 and ≥65 years.
    Results: The mean age was 57 years, and 55.20% of the patients were female. The mortality rate was 0.50%. Injury was detected in 489 (40.30%) patients on CT. Fractures were the most common injury type. Traumatic intracranial hemorrhage was detected in 32 (2.60%) patients. Only three (0.20%) of the 63 patients with rib fractures had concomitant lung injury. The negative predictive value of the physical examination (PE) was 95.80% for chest injury. Intra-abdominal injury was not detected in any of the 116 patients who underwent abdominal CT. Hospitalization was also higher in the ≥65-year group (p<0.001). All mortalities (n=6) were seen in patients aged ≥65 years.
    Conclusion: Our results indicate that GLFs cause more injuries in the elderly, resulting in more hospitalizations and mortality. Normal PE findings may reduce the need for whole-body CT in GLF patients who are conscious, cooperative, and oriented.
    MeSH term(s) Aged ; Humans ; Female ; Middle Aged ; Male ; Retrospective Studies ; Rib Fractures ; Thoracic Injuries/complications ; Tomography, X-Ray Computed ; Injury Severity Score
    Language English
    Publishing date 2023-06-05
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 2253739-9
    ISSN 1307-7945 ; 1306-696X
    ISSN (online) 1307-7945
    ISSN 1306-696X
    DOI 10.14744/tjtes.2023.28741
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    Zs.A 6718: Show issues Location:
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  9. Article ; Online: Association of diaphragm thickness and density measured on chest CT with disease severity in COVID-19 patients.

    Parlak, Selçuk / Beşler, Muhammed Said / Gökhan, Muhammet Batuhan

    The American journal of emergency medicine

    2022  Volume 61, Page(s) 29–33

    Abstract: Introduction: A decrease in muscle mass of the diaphragm could be a significant risk factor for pneumonia. The aim of our study was to evaluate whether diaphragm thickness (DT) and density measured on chest computed tomography (CT) were associated with ... ...

    Abstract Introduction: A decrease in muscle mass of the diaphragm could be a significant risk factor for pneumonia. The aim of our study was to evaluate whether diaphragm thickness (DT) and density measured on chest computed tomography (CT) were associated with clinical course and mortality in adult patients with coronavirus disease 2019 (COVID-19) in emergency department admission.
    Methods: We retrospectively analyzed 404 patients with a positive polymerase chain reaction test for COVID-19 and pneumonia findings on chest CT between September 1 and November 1, 2020. Bilateral DT measurements were performed at the level of the celiac artery origin, and the total mean diaphragm thickness (TMDT) was estimated. Hemidiaphragm density was measured at the level of the celiac artery origin. The relationship between demographic characteristics, comorbidities, TMDT, mean hemidiaphragm density (MHD) and clinical outcomes was investigated using the logistic regression analyses. The reliability of the measurement of the two observers was evaluated by intraclass correlation analyses.
    Results: Intraclass correlation analyses demonstrated almost perfect inter-observer agreement for TMDT and substantial agreement for MHD. There was a statistically significant relationship between the presence of a thinner diaphragm and mortality (p < 0.001). Bilateral diaphragm densities were lower in the patients with severe disease and mortality (p < 0.001). The threshold values of TMDT were 3.67 mm and 3.47 mm for the prediction of ICU admission and mortality, respectively. TMDT (odds ratio [OR]: 0.634, 95% confidence interval [CI]: 0.447-0.901), age (OR: 1.053, 95% CI: 1.027-1.081) and MHD (OR: 0.920, 95% CI: 0.883-0.959) were found to be independent predictors for severe disease in the multivariable model. In addition, MHD (OR: 0.883, 95% CI: 0.827-0.942) and age (OR: 1.040, 95% CI: 1.003-1.078) were independent risk factors for mortality.
    Conclusion: Our study demonstrated that a low diaphragm thickness and density measured on chest CT were associated with severe disease in patients with COVID-19 and could be evaluated as poor prognostic markers.
    MeSH term(s) Humans ; Adult ; COVID-19/diagnostic imaging ; SARS-CoV-2 ; Retrospective Studies ; Diaphragm/diagnostic imaging ; Reproducibility of Results ; Prognosis ; Tomography, X-Ray Computed/methods ; Severity of Illness Index
    Language English
    Publishing date 2022-08-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 605890-5
    ISSN 1532-8171 ; 0735-6757
    ISSN (online) 1532-8171
    ISSN 0735-6757
    DOI 10.1016/j.ajem.2022.08.029
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Acute myocarditis associated with COVID-19 infection.

    Beşler, Muhammed Said / Arslan, Halil

    The American journal of emergency medicine

    2020  Volume 38, Issue 11, Page(s) 2489.e1–2489.e2

    Abstract: We present the case of a 20-year-old male patient without previous history of cardiovascular disease who was admitted to our hospital with a new onset febrile sensation and chest pain. Chest computed tomography revealed a subpleural consolidation with a ... ...

    Abstract We present the case of a 20-year-old male patient without previous history of cardiovascular disease who was admitted to our hospital with a new onset febrile sensation and chest pain. Chest computed tomography revealed a subpleural consolidation with a halo of ground-glass opacification. Blood tests revealed elevated levels of markers of myocyte necrosis (troponin I and creatine kinase-MB). Nasopharyngeal swab was positive for COVID-19. Cardiac MRI showed myocardial edema and late gadolinium enhancement compatible with myocarditis associated with COVID-19 infection. This case showed that acute myocarditis can be the initial presentation of patients with COVID-19 infection.
    MeSH term(s) COVID-19/complications ; COVID-19/diagnostic imaging ; Chest Pain/virology ; Fever/virology ; Humans ; Magnetic Resonance Imaging ; Male ; Myocarditis/diagnostic imaging ; Myocarditis/virology ; Young Adult
    Keywords covid19
    Language English
    Publishing date 2020-06-02
    Publishing country United States
    Document type Case Reports ; Video-Audio Media
    ZDB-ID 605890-5
    ISSN 1532-8171 ; 0735-6757
    ISSN (online) 1532-8171
    ISSN 0735-6757
    DOI 10.1016/j.ajem.2020.05.100
    Database MEDical Literature Analysis and Retrieval System OnLINE

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