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BACKGROUND Percutaneous nephrolithotomy (PCNL) is performed on a routine basis for the rapid and efficient removal of large caliceal stones. After percutaneous puncture, rigid dilators or an inflatable balloon are used to dilate the nephrostomy tract to allow access to the collecting system for stone removal. Little is known of the acute impact of tract(More)
White matter (WM) lesions are the classic pathological hallmarks of multiple sclerosis (MS). However, MRI-based WM lesion load shows relatively poor correlation with functional outcome, resulting in the "clinico-radiological paradox" of MS. Unlike lesion based measures, volumetric MRI assessment of brain atrophy shows a strong correlation with functional(More)
OBJECTIVES To report a retrospective series of 130 Chinese patients with penoscrotal extramammary Paget's diseases (EMPD), with a long-term follow-up, and thus improve the diagnosis and therapy of this disease. PATIENTS AND METHODS The history, clinical presentation, pathology, treatment, and prognosis of 130 patients were analysed. All cases were(More)
We retrospectively identified all children with acute hip pain who underwent pelvic magnetic resonance (MR). Children with septic hip or history of trauma were excluded; the remaining children with signs of infection (fever, >38 degrees C; leukocytosis, >12 x 10(9)/L; or elevated erythrocyte sedimentation rate [ESR], >30 mm/h) comprised the study group.(More)
OBJECTIVE The purpose of this article is to evaluate the relationship between apparent diffusion coefficient (ADC) values, tumor volume, and total Gleason grade in patients with prostate cancer before radical prostatectomy. MATERIALS AND METHODS A total of 110 patients with prostate cancer who had undergone endorectal prostate MRI at 1.5 T before radical(More)
PURPOSE To determine diagnostic accuracy of four-channel multi-detector row computed tomography (CT) in emergency room and inpatient populations suspected of having acute pulmonary embolism (PE) who prospectively underwent both CT and pulmonary arteriography (PA). MATERIALS AND METHODS Patients referred for PA to assess suspected PE were eligible.(More)
BACKGROUND Juvenile idiopathic arthritis (JIA) is the most common cause of chronic arthritis in children, with frequent involvement of the metacarpophalangeal joints (MCPJ). OBJECTIVE To compare US findings with those of radiography and clinical examination. MATERIALS AND METHODS All MCPJs in 20 children with JIA (17 females, median age 9.7 years, range(More)
Advanced MRI studies demonstrated several diffuse non-lesional features in multiple sclerosis, including changes detectable in gray matter areas. Standard T2 weighted MRI scans of deep gray matter structures, including the thalamus, caudate, putamen, dentate nuclei often demonstrate hypointensity. T2 hypointensity has been shown to correlate with cognitive,(More)
PURPOSE Our long-term goal is to improve the quality of reports in radiology imaging interpretation. The rationale for this project focused on identifying the characteristics of a high-quality report from the perspective of referring physicians and radiologists. METHODS We undertook a survey of physician faculty at a large Midwestern academic medical(More)