Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/11727/4809
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Item The role of shear wave elastography in the diagnosis of chronic autoimmune thyroiditis(2015) Hekimoglu, Koray; Donmez, Fuldem Yildirim; Arslan, Serdar; Ozdemir, Adnan; Demir, Canan; Yazici, Canan; 26343080Aims: The aim of this study is to assess the applicability of shear wave elastography (SWE) in the diagnosis of chronic autoimmun thyroiditis (CAT) patients. Material and methods: The study group consisted of 50 patients with first-diagnosed CAT and 40 control subjects (CS). In all patients with CAT and CS, sonoelastographic measurements were made in both thyroid lobes. Optimal cut-off values were chosen to maximize the sum of sensitivity and specificity. Positive predictive value (PPV), negative predictive value (NPV), and accuracy values were also calculated. Results: Quantitative elastographic analysis evaluated by SWE in CAT patients (2.56 +/- 0.30 m/s) was significantly higher compared with CS (1.63 +/- 0.12 m/s) (p<0.001). The optimal cut-off value was 2.42 m/s. SWE had 77% sensitivity, 71% specificity, 92% PPV, 81% NPV, and 87% accuracy for the presence of CAT. Conclusions: Our data indicate that SWE correctly defines the elasticty of thyroid parenchyma, and this technique may assist in the diagnosis and treatment monitoring of CAT.Item Value of diffusion-weighted imaging in hypoglycemic encephalopathy(2015) Donmez, Fuldem Y.; Arslan, Serdar; Agildere, Ahmed M.; Ecevit, Ayse; 26166602Item The Efficacy of Flow Diverter Stents in the Treatment of Wide-Necked Intracranial Aneurysms(2017) Duman, Enes; Yildirim, Erkan; Ozdemir, Adnan; Arslan, Serdar; Aytekin, Cuneyt; Bovyat, Fatih; 0000-0002-9057-722X; F-4230-2011; ABI-3856-2020Background: To present our findings obtained from the treatment of wide-necked intracranial neurysms with flow diverter stents. Patients and Methods: Intracranial aneurysms were determined in 19 patients (14 females, 5 males; mean age, 56.6 years) between May 2011 and June 2014, and the patients were treated using flow diverter stents. A total of 28 flow diverter stents, including 9 Silk and 19 Pipeline stents were used. Occlusion rates evaluated with computed tomography at the end of month 6 and digital subtraction angiography after one year, intraoperative success, morbidity and mortality rates were determined. Results: A total of 20 endovascular interventions, including two interventions in two different aneurysms in one patient were performed in 19 patients. Flow diverter stents were successfully implemented for wide-necked aneurysms at a success rate of 100%. Coil treatment had previously been performed in four patients. Aneurysm occlusion rates were 77.2% at month 6 and 90.9% at the end of month 12. Conclusion: The use of flow diverter stents is a reliable and effective method in the treatment of wide-necked intracranial aneurysms with high aneurysm occlusion, and low morbidity and mortality rates.