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PURPOSE To retrospectively evaluate the diagnostic accuracy of ultrasonographic (US) criteria for the depiction of benign and malignant thyroid nodules by using tissue diagnosis as the reference standard. MATERIALS AND METHODS This study had institutional review board approval, and informed consent was waived. From January 2003 through June 2003, 8024(More)
BACKGROUND/AIMS The purpose of this study was to evaluate the incidences of various multi-detector CT (MDCT) findings in acute viral hepatitis A (AHA) and to determine if there are associations between these CT findings and the clinical phases of AHA. METHODOLOGY Eighty-five patients with AHA were enrolled in this study. The patients were divided into(More)
PURPOSE The purpose of this study was to assess the safety and early outcomes of the Pipeline device for large/giant or fusiform aneurysms. MATERIALS AND METHODS The Pipeline was implanted in a total of 45 patients (mean age, 58 years; M:F=10:35) with 47 large/giant or fusiform aneurysms. We retrospectively evaluated the characteristics of the treated(More)
BACKGROUND Our aim was to investigate the distribution pattern of cerebral artery calcification and its association with white matter hyperintensities (WMH). METHODS We identified 159 consecutive patients with acute ischemic stroke. Calcifications of cerebral arteries and WMH were graded. RESULTS Cerebral artery calcification was found in 137 patients(More)
OBJECTIVE To compare the use of 3D driven equilibrium (DRIVE) imaging with 3D balanced fast field echo (bFFE) imaging in the assessment of the anatomic structures of the internal auditory canal (IAC) and inner ear at 3 Tesla (T). MATERIALS AND METHODS Thirty ears of 15 subjects (7 men and 8 women; age range, 22-71 years; average age, 50 years) without(More)
PURPOSE Axium™ coils were developed to improve the durability of coil-embolized cerebral aneurysms by increasing packing density. The purpose of this prospective multicenter registry was to evaluate the safety and durability of Axium™ coils. MATERIALS AND METHODS One hundred twenty-six patients with 135 aneurysms of ≤ 15 mm in size underwent coil(More)
OBJECTIVES To evaluate the surgical effects of orbital fat decompression and bony decompression in each orbital wall using computed tomography (CT) in thyroid-associated orbitopathy (TAO). METHODS In 27 TAO patients (48 orbits) with exophthalmos who underwent orbital wall decompression combined with fatty decompression, we recorded the resected orbital(More)
OBJECTIVE This study aimed to evaluate the hypotheses that administration routes [intra-arterial (IA) vs. intravenous (IV)] affect the early stage migration of transplanted human bone marrow-derived mesenchymal stem cells (hBM-MSCs) in acute brain infarction. METHODS Male Sprague-Dawley rats (n=40) were subjected to photothrombotic infarction. Three days(More)
The authors describe the use of a self-expandable stent in a temporary deployment for treatment of a very wide-neck A1 segment of anterior cerebral artery (ACA) aneurysm following incomplete clipping. A 39-year-old hypertensive man presenting with seizure-like movement underwent computed tomography, which showed acute subarachnoid hemorrhage and an A1(More)
BACKGROUND Sinonasal organized hematoma is a rare benign disease that may be mistaken for malignancy. PURPOSE To define the imaging characteristics of sinonasal organized hematoma. MATERIAL AND METHODS We retrospectively reviewed computed tomography (CT) images of eight patients (4 male patients, 4 female patients; mean age, 40 years; range, 9-83 years)(More)