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TOPRAK, HÜSEYİN

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HÜSEYİN
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TOPRAK
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2012 - 2019212020 - 202411
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Now showing 1 - 10 of 32
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    PublicationOpen Access
    Diagnostic value of dynamic contrast-enhanced magnetic resonance imaging in the evaluation of the biliary obstruction
    (2012-01-01) BALCI, CEM NUMAN; Bilgin, MEHMET; Toprak, HÜSEYİN; BURGAZLI, MEHMET; BILGIN, SABRİYE ŞENNUR; CHASAN, RITVAN; ERDOĞAN, ALİ; BİLGİN, MEHMET; TOPRAK, HÜSEYİN
    Purpose: In this study, our purpose was to investigate the diagnostic efficacy of the dynamic contrast-enhanced magnetic resonance imaging (MRI) method in the patients with bile duct obstruction. Materials and methods: 108 consecutive patients (53 men, 55 women, mean age; 55.77 ± 14.62, range 18-86 years) were included in this study. All the patients underwent conventional upper abdomen MRI using intravenous contrast material (Gd-DTPA) and MRCP in 1.5 Tesla MRI scanner. MRCP images were evaluated together with the T1 and T2w images, and both biliary ducts and surrounding tissues were examined for possible pathologies that may cause obstruction. Results: MRI/MRCP findings compared with final diagnoses, MRI/MRCP in the demonstration of bile duct obstruction sensitivity 96%, the specificity 100%, and accuracy 96.3%, in the detection of presence and level of obstruction, the sensitivity 96.7%, specificity 100%, and accuracy 97.2%, in the diagnosis of choledocholithiasis, the sensitivity 82.3%, specificity 96%, and accuracy 91.7%, and in the determination of the character of the stenosis, sensitivity 95.6%, specificity 91.3%, and accuracy 94.5% were found. Conclusion: The combination of dynamic contrast-enhanced MRI and MRCP techniques in patients with suspected biliary obstruction gives the detailed information about the presence of obstruction, location, and causes and is a highly specific and sensitive method.
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    Systematic versus cognitive targeted biopsy: evaluation of parameters related to clinically significant prostate cancer and comparison of detection rates
    (2022-10-01) Ersöz C.; İlktaç A.; Kalkan S.; Kayalı Y.; Akbulut H.; Toprak H.; Doğan B.; ERSÖZ, CEVPER; İLKTAÇ, ABDULLAH; KALKAN, SENAD; AKBULUT, HABİB; TOPRAK, HÜSEYİN; DOĞAN, BAYRAM
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    PublicationOpen Access
    Diagnostic performance of apparent diffusion coefficient values for the differentiation of intrahepatic cholangiocarcinoma from gastrointestinal adenocarcinoma liver metastases
    (2021-12-22T00:00:00Z) Yilmaz, TEMEL FATİH; Gultekin, Mehmet Ali; Turk, Hacı Mehmet; Cesme, Dilek Hacer; Besiroglu, Mehmet; Simsek, Melih; Toprak, Huseyin; Alkan, ALPAY; YILMAZ, TEMEL FATİH; TÜRK, HACI MEHMET; ÇEŞME, DİLEK HACER; ŞİMŞEK, MELİH; ALKAN, ALPAY; TOPRAK, HÜSEYİN
    Background: We aimed to investigate whether there is a difference between intrahepatic cholangiocarcinoma (IHCC) and liver metastases of gastrointestinal system (GIS) adenocarcinoma in terms of apparent diffusion coefficient (ADC) values. Patients and methods: From January 2018 to January 2020, we retrospectively examined 64 consecutive patients with liver metastases due to gastrointestinal system adenocarcinomas and 13 consecutive IHCC in our hospital's medical records. After exclusions, fifty-three patients with 53 liver metastases and 10 IHCC were included in our study. We divided the patients into two groups as IHCC and liver metastases of GIS adenocarcinoma. For mean apparent diffusion coefficient (ADCmean) values, the region of interests (ROI) was placed in solid portions of the lesions. ADCmean values of groups were compared. Results: The mean age of IHCC group was 62.50 ± 13.49 and mean age of metastases group was 61.15 ± 9.18. ADCmean values were significantly higher in the IHCC group compared to the metastatic group (p < 0.001). ROC curves method showed high diagnostic accuracy (AUC = 0.879) with cut-off value of < 1178 x 10-6 mm2/s for ADCmean (Sensitivity = 90.57, Specificity = 70.0, positive predictive value [PPV] = 94.1, negative predictive value [NPV] = 58.3) in differentiating adenocarcinoma metastases from IHCC. Conclusions: The present study results suggest that ADC values have a potential role for differentiation between IHCC and GIS adenocarcinoma liver metastases which may be valuable for patient management.
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    PublicationOpen Access
    Stab injury of the thoracic aorta: computed tomography findings.
    (2013-01-01) Yildiz, S; Toprak, HÜSEYİN; SERTER, ASLI; KOCAKOÇ, ERCAN; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİN
    Stab injury of the thoracic aorta is a rare condition with high mortality rate. Patients must be evaluated carefully, and the diagnosis usually should be confirmed by radiological modalities. In this case, we report a 37-year-old man presented with a penetrating stab injury to the upper back and the thoracic aorta, and the diagnostic role of computed tomography is discussed.
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    PublicationOpen Access
    Ultrasound and Doppler US in Evaluation of Superficial Soft-tissue Lesions.
    (2014-02-27) Toprak, HÜSEYİN; KILIÇ, ERKAN; SERTER, ASLI; KOCAKOÇ, E; OZGOCMEN, SALİH; TOPRAK, HÜSEYİN
    Improved developments in digital ultrasound technology and the use of high‑frequency broadband transducers make ultrasound (US) imaging the first screening tool in investigating superficial tissue lesions. US is a safe (no ionizing radiation), portable, easily repeatable, and cheap form of imaging compared to other imaging modalities. US is an excellent imaging modality to determine the nature of a mass lesion (cystic or solid) and its anatomic relation to adjoining structures. Masses can be characterized in terms of their size, number, component, and vascularity with US and Doppler US especially with power Doppler US. US, however, is operator dependent and has a number of artifacts that can result in misinterpretation. In this review, we emphasize the role of ultrasound, particularly power Doppler, in superficial soft‑tissue lesions.
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    Comparing Perfusion Data of CE-MRI, SWI and CTA with MR Perfusion in Stroke.
    (2022-02-11) Çetinkaya E.; Aralaşmak A.; Goksungur G.; Kaya M. O.; Toprak H.; Kolukısa M.; Asıl T.; Kurtcan S.; Özdemir H.; TOPRAK, HÜSEYİN
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    The clinical feature and outcome of groove pancreatitis in a cohort: A single center experience with review of the literature
    (2022-08-01T00:00:00Z) DEĞER, KAMURAN CUMHUR; KÖKER, İBRAHİM HAKKI; Destek, Sabahattin; TOPRAK, HÜSEYİN; Yapalak, Yunus; GÖNÜLTAŞ, CEREN; ŞENTÜRK, HAKAN; DEĞER, KAMURAN CUMHUR; KÖKER, İBRAHİM HAKKI; TOPRAK, HÜSEYİN; GÖNÜLTAŞ, CEREN; ŞENTÜRK, HAKAN
    BACKGROUND: Groove pancreatitis (GP) is a rare form of chronic pancreatitis that is less common and is now gaining awareness with multimodal imaging modalities. Our aim is to analyze the mid-long term outcomes of patients diagnosed with GP with different treatment approaches.
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    Comparison of TOF MRA, Contrast-Enhanced MRA and Subtracted CTA from CTP in Residue Evaluation of Treated Intracranial Aneurysms
    (2018-01-01) Dundar, TOLGA TURAN; Kits, Serkan; Ozdemir, HÜSEYİN; Seyithanoglu, MEHMET HAKAN; Uysal, Omer; Toprak, HÜSEYİN; Ozek, ERDİNÇ; Alkan, ALPAY; DÜNDAR, TOLGA TURAN; ARALAŞMAK, AYŞE; ÖZDEMİR, HÜSEYIN; SEYİTHANOĞLU, MEHMET HAKAN; UYSAL, ÖMER; TOPRAK, HÜSEYİN; KİTİŞ, SERKAN; ÖZEK, ERDİNÇ; ALKAN, ALPAY
    AIM: To compare effectiveness of contrast-enhanced magnetic resonance angiography (CE-MRA), 3D-Time-of-flight magnetic resonance angiography (3D-TOF-MRA) and subtracted computed tomography angiography from computed tomography perfusion (sub-CTA) in residue evaluation of intracranial aneurysms treated either with coiling or clipping.
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    PSA change after antibiotic treatment should not affect decision-making on performing a prostate biopsy
    (2023-02-01) Kayalı Y.; Balbay M. D.; İlktaç A.; Ersöz C.; Toprak H.; Tarım K.; Baygül A.; Akçay M.; Doğan B.; İLKTAÇ, ABDULLAH; ERSÖZ, CEVPER; TOPRAK, HÜSEYİN; AKÇAY, MUZAFFER; DOĞAN, BAYRAM
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    PublicationOpen Access
    CT and MRI Findings of Hepatic Involvement in Rendu-Osler-Weber Disease.
    (2012-01-01) Bilgin, MEHMET; Yildiz, S; Toprak, HÜSEYİN; AHMAD, ISSAM CHEIKH; KOCAKOÇ, ERCAN; BİLGİN, MEHMET; YILDIZ, ŞEYMA; TOPRAK, HÜSEYİN
    Rendu-Osler-Weber disease is a rare autosomal dominant disorder. Hepatic involvement manifests itself as vascular, parenchymal, and biliary lesions with characteristic telangiectasias and vascular shunts. In a 37-year-old female patient, dynamic contrastenhanced upper abdominal CT and MRI were performed. CT and MRI revealed dilated celiac trunk and hepatic artery. On early arterial phase, dilated hepatic veins showed significant enhancement. On arterial and portal venous phases, liver showed significantly heterogeneous contrast enhancement and showed homogenous enhancement in the hepatic parenchymal phase. On the magnetic resonance cholangiopancreatography, irregular biliary ducts with strictures and dilatation were seen.