The Potential Impact of Risk-Based Screening Mammography in Women 40-49 Years Old.

Objective: The purpose of this study was to determine the prevalence of very strong family history and extremely dense tissue in women 40-49 years old with breast cancer detected on screening mammography.

Materials And Methods: All cancers detected by screening mammography at our institution between January 1997 and November 2012 in 40- to 49-year-old women were retrospectively identified. Those with a personal history of breast cancer were excluded.

Determinants of second-order bile duct visualization at CT cholangiography in potential living liver donors.

Objective: The purpose of this article is to investigate the determinants of second-order bile duct visualization at CT cholangiography in living potential liver donors.

Materials And Methods: We retrospectively identified 143 potential living liver donors (83 men and 60 women; mean age, 37 years) evaluated with CT cholangiography, which included a slow infusion of iodipamide meglumine with CT acquisition 15 minutes after biliary contrast agent administration. Two readers independently scored the visualization of the second-order bile duct branches on a previously established 4-point scale (0 = not seen, 1 = faintly seen, 2 = well seen, and 3 = excellent visualization).

Contrast delay on perfusion CT as a predictor of new, incident infarct: a retrospective cohort study.

Background And Purpose: The purpose of this study was to determine if the assessment of intracranial collateral circulation by CT angiography and/or perfusion CT (PCT) can predict the risk of future ischemic stroke in a large, retrospective cohort study.

Methods: We identified 135 consecutive patients who underwent CT angiography of the head and neck and PCT of the brain at baseline and with subsequent follow-up brain imaging. Clinical and demographic information and carotid wall features were collected.

Reduced cathartic bowel preparation for CT colonography: prospective comparison of 2-L polyethylene glycol and magnesium citrate.

Purpose: To prospectively compare adequacy of colonic cleansing, adequacy of solid stool and fluid tagging, and patient acceptance by using reduced-volume, 2-L polyethylene glycol (PEG) versus magnesium citrate bowel preparations for CT colonography.

Materials And Methods: This study was approved by the institutional Committee on Human Research and was compliant with HIPAA; all patients provided written consent. In this randomized, investigator-blinded study, 50 patients underwent oral preparation with either a 2-L PEG or a magnesium citrate solution, tagging with oral contrast agents, and subsequent CT colonography and segmentally unblinded colonoscopy.

Evaluation of potential outcome predictors in type II Endoleak: a retrospective study with CT angiography feature analysis.

Objective: The purpose of this study is to investigate which CT features of type II endoleaks following abdominal aortic aneurysm (AAA) endoluminal stent-graft repair can be used to predict clinical outcome.

Materials And Methods: We retrospectively identified 59 patients with type II endoleak after endovascular repair of an AAA with CT of the abdomen and pelvis. Patients were stratified into two groups: those who did (n = 23) and those who did not (n = 35) require reintervention.

Comparison of traditional methods with 3D computer models in the instruction of hepatobiliary anatomy.

This study was designed to determine whether an interactive three-dimensional presentation depicting liver and biliary anatomy is more effective for teaching medical students than a traditional textbook format presentation of the same material. Forty-six medical students volunteered for participation in this study. Baseline demographic information, spatial ability, and knowledge of relevant anatomy were measured.