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Your search keyword '"Hülya Kurtul Yıldız"' showing total 3 results
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3 results on '"Hülya Kurtul Yıldız"'

1. Age and sex-based distribution of lumbar multifidus muscle atrophy and coexistence of disc hernia: an MRI study of 2028 patients

Author

Elif Evrim Ekin, Hülya Kurtul Yıldız, and Harun Mutlu

Subjects
Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

PURPOSEWe aimed to investigate the prevalence of lumbar multifidus muscle (LMM) atrophy in patients having mechanical low back pain with and without disc hernia.METHODSIn total, 2028 lumbar magnetic resonance imaging scans of low back pain patients (age range, 18–88 years) were re-evaluated retrospectively. LMM atrophy was visually assessed in axial sections of L4-L5 and L5-S1 levels.RESULTSLMM atrophy prevalence at both levels was significantly higher in subjects ≥40 years compared with younger adults (P < 0.001). LMM atrophy was significantly more frequent in women than in men (P < 0.001). Among patients with low back pain without hernia, LMM atrophy was significantly more frequent than normal muscle (n=559 vs. n=392; P < 0.001). Frequency of LMM atrophy in low back pain patients without disc hernia was 13%. Hernia was more frequent in patients with LMM atrophy compared with patients without atrophy (P < 0.001).CONCLUSIONLMM atrophy is more common in women; its prevalence and severity are observed to increase with advancing age, and disc hernia is found more frequently in individuals with LMM atrophy.

Published
2016
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3. Diagnostic Performance of COVID-19 Reporting and Data System Classification Across Residents and Radiologists: A Retrospective Study

Author

Hakan Önder, Melis Koşar Tunç, Hülya Kurtul Yıldız, Okan İnce, and Naciye Kıs

Subjects
Male, medicine.medical_specialty, Coronavirus disease 2019 (COVID-19), Diagnostic accuracy, Computed tomography, Sensitivity and Specificity, Radiologists, medicine, Humans, Radiology, Nuclear Medicine and imaging, In patient, Lung, Reference standards, Aged, Retrospective Studies, Receiver operating characteristic, medicine.diagnostic_test, SARS-CoV-2, business.industry, COVID-19, Internship and Residency, Reproducibility of Results, Retrospective cohort study, Middle Aged, medicine.disease, Pneumonia, Radiology Information Systems, Female, Radiology, Tomography, X-Ray Computed, business
Abstract

OBJECTIVE: The aim of the study was to evaluate the interobserver agreement and diagnostic accuracy of COVID-19 Reporting and Data System (CO-RADS), in patients suspected COVID-19 pneumonia. METHODS: Two hundred nine nonenhanced chest computed tomography images of patients with clinically suspected COVID-19 pneumonia were included. The images were evaluated by 2 groups of observers, consisting of 2 residents-radiologists, using CO-RADS. Reverse transcriptase-polymerase chain reaction (PCR) was used as a reference standard for diagnosis in this study. Sensitivity, specificity, area under receiver operating characteristic curve (AUC), and intraobserver/interobserver agreement were calculated. RESULTS: COVID-19 Reporting and Data System was able to distinguish patients with positive PCR results from those with negative PCR results with AUC of 0.796 in the group of residents and AUC of 0.810 in the group of radiologists. There was moderate interobserver agreement between residents and radiologist with κ values of 0.54 and 0.57. CONCLUSIONS: The diagnostic performance of CO-RADS for predicting COVID-19 pneumonia showed moderate interobserver agreement between residents and radiologists.

Published
2021
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