Farid Dahi

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PURPOSE To retrospectively determine the incremental value of diffusion-weighted MR-imaging (DW-MRI) to T2-weighted (T2w) images in diagnosis of internal fistulas (IFs) and sinus tracts (STs). MATERIALS AND METHODS Fourteen patients with 25 IFs and STs arising from the small bowel (20), colon (4) and biliary tract (1) were included. Two independent(More)
PURPOSE To analyze the diffusion and perfusion parameters of central gland (CG) prostate cancer, stromal hyperplasia (SH), and glandular hyperplasia (GH) and to determine the role of these parameters in the differentiation of CG cancer from benign CG hyperplasia. MATERIALS AND METHODS In this institutional review board-approved (with waiver of informed(More)
BACKGROUND Different perfusion characteristics and histopathologic features of liver metastasis may potentially lead to different diffusion-weighted magnetic resonance imaging (DW-MRI) characteristics which can affect the performance of DW-MRI in their diagnosis. PURPOSE To compare ADC values of hypervascular and hypovascular metastases and the added(More)
Crohn's disease (CD) is a chronic autoimmune disorder that affects mainly young people. The clinical management is based on the Crohn's Disease Activity Index and especially on biologic parameters with or without additional endoscopic and imaging procedures, such as barium and computed tomography examinations. Recently, magnetic resonance (MR) imaging has(More)
RATIONALE AND OBJECTIVES To determine possible differences between the left and right hepatic lobes in apparent diffusion coefficient (ADC) values of benign and malignant focal liver lesions (FLLs) and normal liver parenchyma. MATERIALS AND METHODS Thirty-six patients (16 males, 20 females; mean age 56.8 years) with FLLs of the same etiology in both the(More)
Diffusion Tensor Imaging (DTI) may soon become the non-invasive tool of choice for diagnosing Traumatic Brain Injury (TBI) due to its ability to examine white matter changes in the living brain. While research has shown the value of DTI in differentiating affected and control populations, further work is required to develop algorithms and tools that enable(More)
AIM To evaluate whether focal liver lesions (FLLs) exhibit a homogeneous appearance on apparent diffusion coefficient (ADC) maps and whether there is inter-section variation in the calculated ADC values of FLLs (inter-section range). MATERIALS AND METHODS Eighty-eight patients with 128 FLLs (70 benign, 58 malignant) who underwent abdominal magnetic(More)
Occlusal amalgam restorations placed in extracted deciduous molars were studied using an electron microscope. The fillings were carved only or both carved and burnished, and all were subsequently polished. Observations were made before and after polishing, and the results emphasized the effects of carving, burnishing, and polishing on the surface texture(More)
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