Discriminating cancer from noncancer tissue in the prostate by 3-dimensional proton magnetic resonance spectroscopic imaging: a prospective multicenter validation study.

Objectives: A prospective multicenter validation of the ability of 1H magnetic resonance spectroscopic imaging (MRSI) to distinguish cancer from noncancer tissues throughout the prostate with histopathology of the resected organ as the standard of reference.

Materials And Methods: Institutional review board approval was obtained for all centers and all participating patients and volunteers provided written informed consent. Ninety-nine patients and 10 age-matched volunteers from 8 participating centers underwent magnetic resonance imaging and 3-dimensional MRSI with an endorectal coil at 1.

Effect of reduced radiation CT protocols on the detection of renal calculi.

Purpose: To determine the effect of reduced radiation (tube charge, measured as milliamperes per second) protocols on the sensitivity and specificity of multidetector computed tomography (CT) in the detection of renal calculi.

Materials And Methods: This Health Insurance Portability and Accountability Act-compliant human cadaveric study was approved by the Department of Anatomic Pathology with strict adherence to the university policy for handling donor specimens. Three to five renal stones (range, 2.

Renal stone detection using unenhanced multidetector row computerized tomography--does section width matter?

Purpose: We determined the effect of reconstructed section width on sensitivity and specificity for detecting renal calculi using multidetector row computerized tomography.

Materials And Methods: Three to 5 renal stones 2 to 4 mm in size were randomly placed into 14 human cadaveric kidneys and scanned by 16-row detector computerized tomography at 1.25 mm collimation and identical scanning parameters.

Nephrogenic systemic fibrosis associated with gadolinium based contrast agents: a summary of the medical literature reporting.

Nephrogenic systemic fibrosis (NSF) is a systemic fibrosing disorder that principally affects the skin, but can involve virtually any tissue in the human body and result in significant disability and even death. Since 2006 numerous retrospective case reports and case series have reported a very strong association of this disease with exposure to gadolinium-based contrast agents (Gd-CA) for MR imaging in the setting of severe or end-stage renal disease. The purpose of this report is to summarize the medical literature reporting of biopsy-proven NSF cases in which the authors specifically investigated patient exposure to Gd-CA.

Nephrogenic systemic fibrosis: chronic imaging findings and review of the medical literature.

Nephrogenic systemic fibrosis (NSF) is a systemic fibrosing disorder which has been strongly associated with exposure to gadolinium-based contrast media (GBCM) in the setting of renal insufficiency. Although this disorder primarily affects the skin, it can result in severe joint contractures, disabilities and even death. However, to date, there have been no published studies reporting chronic imaging findings of NSF.

Improved detection of renal vascular anatomy using multidetector CT angiography: Is 100% detection possible?

Background And Purpose: Multidetector CT angiography (MDCTA) is being used increasingly to evaluate vascular anatomy prior to donor nephrectomy. To improve the ability of MDCTA to predict donor renal anatomy, a novel protocol including four-phase imaging with three-dimensional reconstruction and maximum intensity projections (MIPs) was incorporated into the standard donor evaluation. The purpose of this study was to determine the results of this protocol.

Gadodiamide-associated nephrogenic systemic fibrosis: why radiologists should be concerned.

Objective: Nephrogenic systemic fibrosis (NSF) is a rare multisystemic fibrosing disorder that principally affects the skin but may affect other organs of patients with renal insufficiency. The purpose of our study was to identify any common risk factors and determine whether i.v.

Multidetector computerized tomography angiography to predict lumbar venous anatomy before donor nephrectomy.

Purpose: Multidetector computerized tomography angiography has been used to predict renal anatomy before donor nephrectomy. Unrecognized lumbar veins represent a significant risk during laparoscopic surgery but to our knowledge no previous group has attempted to predict lumbar veins with multidetector computerized tomography angiography before laparoscopic donor nephrectomy. We evaluated the ability of multidetector computerized tomography angiography to preoperatively predict the size and location of anomalous left lumbar veins.

Pancreatic herniation through the gastroesophageal hiatus: magnetic resonance imaging, magnetic resonance cholangiopancreatography, and computed tomography evaluation.

A rare case of pancreatic herniation through the gastroesophageal hiatus is presented, including magnetic resonance evaluation with magnetic resonance cholangiopancreatography and magnetic resonance angiography images unique to the published literature.