Fakülteler / Faculties

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    The Diagnostic Value of Magnetic Resonance Urography Using A Balanced Turbo Field Echo Sequence
    (2016) Cifci, Egemen; Coban, Gokcen; Cicek, Tufan; Gonulalan, Umut; 26984432
    The aim of the study was to compare the inter-observer variability and the accuracy of magnetic resonance urography (MRU) using a thin sectional balanced-turbo field echo (B-TFE) sequence for detecting ureteral calculi and to determine the effect of additional factors (size, density and location of the calculus) on the sensitivity and specificity of the MRU. MRU and CT images were evaluated independently by two radiologists according to presence, density and localization of calculi. The degrees of inter-rater agreement for categorical items were evaluated by the Kappa coefficient. According to the 1st and 2nd observers, the sensitivity of MRU was 65.9 %, 71.8 % and the specificity of MRU was 95.9 %, 100 %, respectively. Inter-observer agreement was 84.6 % for stone detection. The larger size had a better effect on detectability (p < 0.05). Also, the higher density had a better impact on detectability (p < 0.05). Our study has shown that B-TFE MRU was useful to detect ureteral calculi. However, B-TFE MRU has low sensitivity and high specificity in comparison with CT images. MRU is a reasonable alternative imaging technique for follow-up periods of selective groups like patients with large urinary stones, children or pregnant patients when ionizing radiation is undesirable. aEuro cent According to 1st and 2nd observers, sensitivity of MRU was 65.9 %, 71.8 %, respectively. aEuro cent According to 1st and 2nd observers, MRU specificity was 95.9 %, 100 %, respectively. aEuro cent Interobserver agreement was found to be over 84 % for stone detection. aEuro cent B-TFE sequence provides calculus follow-up without radiation. aEuro cent Larger calculi and more dense calculi individually have the better effect on detectability.
  • Item
    Clinical Profile and Renal Ultrasound Characteristics of Children With Nutcracker Syndrome in Turkey
    (2022) Basaran, Edibe Gozde; Yilmaz, Aysun Caltik; Gungor, Ozlem; Tayfur, Asli Celebi; Buyukkaragoz, Bahar; https://orcid.org/0000-0003-0774-4419; 35060485; AAD-1877-2021
    Objective We aimed to evaluate the clinical profile and radiological findings of children with nutcracker syndrome (NCS) and to assess the association between the parameters. Methods A retrospective analysis of the clinical, laboratory and radiological parameters of children diagnosed with NCS between January, 2011 and October, 2017 was done. Results Of a total of 29 patients [19 girls, 65.5%] with NCS, having a mean (SD) age of 10.8 years, 72.4% had BMI <-2SD. Approximately half of the patients (51.7%) were asymptomatic. Left flank pain was commonest (9/29; 31%) symptom, followed by macroscopic hematuria (4/29; 13.8%). Isolated proteinuria was seen in 9 children. There was no significant difference between the symptomatic and asymptomatic patients in terms of Doppler ultrasonography findings. All patients were followed up conservatively, 5 received enalapril therapy for moderate proteinuria. Conclusion NCS should be considered in children, especially with low BMI, presenting with orthostatic proteinuria and hematuria, with or without left flank pain after ruling out the common causes.