Carrie L Robertson

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During 1989 and 1990, 25,788 screening and 1,077 diagnostic breast imaging examinations were performed. Audit was performed in 6-month intervals to allow comparison of performance over time. Sensitivity, positive predictive value, and stage of disease were determined for each radiologist, for patients over and those under 50 years of age, and for patients(More)
The technical and diagnostic performance of simultaneously acquired low-dose (44% of standard dose) storage-phosphor digital radiographs (system resolution = 0.2 mm, 10 bits) were compared with those of standard-dose conventional bedside radiographs of the chest in 32 patients. The mean optical density (OD) of the lungs (800 measurements) was closer to the(More)
BACKGROUND The potential for transmission of Mycobacterium tuberculosis during air travel has garnered considerable attention in the media and among public health authorities due to high-profile cases of international travelers with infectious tuberculosis (TB). METHODS During 2007 and 2008, state and local health officials were asked to locate and(More)
Fine linear structures represent a severe test of the minimum spatial resolution that is needed for digital chest imaging. We studied the comparative observer performance of storage phosphor digital imaging (1760 X 2140 pixel matrix, 10 bits deep), and conventional radiography (Lanex medium screen, Ortho C film) in the detection of simulated fine pulmonary(More)
Reviewed was a series of 47 obstetric, gynecologic, and general surgical patients with apparent postoperative ileus who had received an oral administration of water-soluble radiocontrast material. Forty of these patients were found to have an ileus, and seven to have a mechanical small bowel obstruction. In the 40 patients with ileus, prompt resolution of(More)
We measured ankle systolic blood pressure (ABP) and limb transcutaneous oxygen tension (TcPO2) before and after 53 vascular procedures performed to relieve limb-threatening ischemia. We compared changes in ABP and TcPO2 and also compared these measurements of limb hemodynamics with the clinical outcome of the vascular procedures. For the procedures(More)
The authors prospectively assessed the effectiveness of requests for immediate additional evaluation or biopsy made on the basis of the interpretation of abnormal findings on screening mammograms. In 1,125 screening mammograms obtained in asymptomatic women referred by physicians, the findings in 63 (6%) were interpreted as requiring additional imaging or(More)