Background fluctuation of kidney function versus contrast-induced nephrotoxicity.

Objective: The reported incidence of contrast-induced acute kidney injury varies widely. Almost no studies have been conducted to quantify the background fluctuation of kidney function of patients receiving iodinated contrast medium. The purpose of this study was a retrospective comparison of the incidence of acute kidney injury among patients undergoing CT with low-osmolar (iohexol) or isoosmolar (iodixanol) contrast medium with the incidence among patients undergoing CT without contrast administration.

Primary 2D versus primary 3D polyp detection at screening CT colonography.

Objective: Disparate results from the existing large CT colonography (CTC) trials suggest that 2D polyp detection is less sensitive than 3D detection, but no direct evidence exists to support this claim. Our goal was to assess the sensitivity of primary 2D polyp detection with cases from the Department of Defense CTC screening trial and compare results with the primary 3D evaluation and previous 2D CTC trials.

Materials And Methods: Ten radiologists, blinded to polyp findings, retrospectively interpreted 730 consecutive colonoscopy-proven CTC cases in asymptomatic adults using a primary 2D approach, with 3D reserved for problem solving.

Effect of colonic distention on superiority of supine versus prone views in screening computed tomographic colonography.

Purpose: The purpose of this study was to evaluate the effect of colonic distention in computed tomographic colonography (CTC).

Methods: There were 3941 adults who underwent CTC with distention by either carbon dioxide (CO(2); n=2099) or room air (RA; n= 1733). Supine distention and prone distention were prospectively assessed and compared.

Abdominal manifestations of cystic fibrosis in older children and adults.

Objective: Cystic fibrosis (CF) is a disorder of exocrine gland function of which the gene mutation has been existing for thousands of years. With recent medical advances, neonates presently affected have a life expectancy of 40 years. The common gastrointestinal presentations of CF patients, including pancreatic, hepatobiliary, and bowel manifestations, are thus important to recognize.

Percutaneous sacroplasty for the treatment of sacral insufficiency fractures.

Objective: The purpose of this article is to illustrate the effectiveness and utility of percutaneous sacroplasty in the treatment of sacral insufficiency fractures. We also outline the technical considerations in performing the procedure.

Conclusion: Percutaneous sacroplasty is an effective treatment for sacral insufficiency fractures.

Comparison of iodixanol with iohexol for delayed pelvic venous opacification: a preliminary study of potential use for CT venography.

Objective: The goal of this prospective randomized study was to determine whether isosmolar contrast material offers an advantage over low-osmolar contrast material for delayed venous opacification in CT venography. SUBJECTS AND METHODS. We prospectively enrolled 200 adult outpatients.

Imaging of the brain, including diffusion-weighted imaging in methylmalonic acidemia.

Methylmalonic acidemia (MMA) is a multifactorial autosomal recessive inborn error of organic acid metabolism, often presenting with neurologic findings. We report the imaging findings in a case of a child with classic neurological and laboratory findings for MMA. Imaging studies demonstrated abnormalities within the basal ganglia, particularly the globi pallidi (GP).