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BACKGROUND AND PURPOSE Arterial hypertension is an important risk factor for cerebrovascular diseases, such as transient ischemic attacks or stroke, and represents a major global health issue. The effects of hypertension on cerebral blood flow, particularly at the microvascular level, remain unknown. METHODS Using the spontaneously hypertensive rat (SHR)(More)
Renal transplant remains the mainstay of the treatment of end-stage renal disease. With improvement in management strategies and the diverse imaging options, the yearly survival of recipients with functional kidneys has improved significantly. This improved survival is attributed to factors such as immunosuppressive therapy planning in recipients, human(More)
Advances in multidetector CT (MDCT) scanners have increased the pace of development of advanced postprocessing applications, such as virtual endoscopy (VE), segmentation and volumetry, and computer-aided postprocessing methods. Availability of thin-section MDCT data sets of isotropic voxel resolution ensures accuracy in structure segmentation, which is an(More)
PURPOSE The purpose of this study was to compare enhancement quality, performance efficiency, technologists' satisfaction, and operation costs between 2 different power injectors (PIs) in an outpatient setting. METHODS In this prospective study, 275 consecutive outpatients (135 men, 140 women) scheduled for contrast-enhanced CT (CECT) were randomized and(More)
RATIONALE AND OBJECTIVES The purpose of this retrospective study was to compare the maximum intensity projection (MIP) images generated at a multidetector computed tomography (MDCT) scanner console using advanced tools at a three-dimensional (3D) workstation for assessment of pancreatic tumor resectability. MATERIALS AND METHODS Institutional review board(More)
OBJECTIVE The objective of this study was to compare image quality for abdominal computed tomographic (CT) images acquired at 200 and 50 mA s and reconstructed with image-based iterative reconstruction. MATERIALS AND METHODS In this institutional review board-approved prospective study, 22 patients (mean [SD] age, 64.3 [14.4] years; male-female ratio,(More)
RATIONALE AND OBJECTIVES The purpose of this evaluation was to compare the tagging quality of a barium-based regimen with that of iodine-based regimens for computed tomographic (CT) colonography. MATERIALS AND METHODS Tagging quality was assessed retrospectively in three different types of fecal-tagging CT colonographic cases: 24 barium-based cases, 22(More)
In order to manage risks to the IT environments and to satisfy government and industry regulations, most enterprises are required to conduct risk assessments. These risk assessments are used to drive organizational decisions on information security. However, despite this need, current approaches lack granular guidance on some key steps and have focused on(More)
Institutional Review Board approval was obtained and informed consent was waived for this HIPAA-compliant study. The aim of this study was to retrospectively compare the accuracy of semiautomated maximum intensity projection (MIP) images created at a 16-section multidetector CT console with three-dimensional (3D)-workstation-generated images for the(More)