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Biomedical subjects

O M Gatewood

Publications and source records attributed to O M Gatewood.

5 recordsLinked to original sources
PubMed1992

Template-guided breast US.

The authors modified a standard breast compression plate to allow ultrasound (US) scanning to be performed in the longitudinal and transverse directions with the breast positioned craniocaudally or laterally in a mammographic unit. The technique allows quick mammographic-US correlation of lesions, characterization of lesions as cystic, solid, or indeterminate, and the ability (with coordinates marked on the plate) to proceed directly with aspiration of sonographically indeterminate lesions.

Breast Neoplasms↗
PubMed1990

Hormonal replacement therapy: mammographic manifestations.

Anecdotal observation of mammographic changes in patients receiving hormonal replacement therapy prompted a retrospective review of a screening population of 1,500 consecutive patients. Thirty patients were identified who underwent mammography both before or after therapy and during therapy. The duration of hormonal replacement therapy ranged from 1 to 72 months (mean, 22.2 months). An increase in fibroglandular tissue was seen on the mammograms of five of the 30 patients (17%) receiving therapy. The mammograms from the remaining 25 patients (83%) showed no change. A proportion of women receiving hormonal replacement therapy will show increased tissue density at mammography. Awareness of this response should temper concern and, in the absence of suggestive anatomic changes, allow for serial, vigilant monitoring of these patients.

Breast↗
PubMed1989

Equivocal mammographic findings: evaluation with spot compression.

Seventy-five spot compression views of equivocally suspicious lesions detected at routine mammographic examination of 72 women were reviewed in this retrospective study. Sixty-five of the 75 lesions appeared less suspicious on spot compression views, two did not change, and eight appeared more suspicious. Biopsy findings confirmed that the eight more suspicious lesions were cancer. The adjunctive use of spot compression helped characterize equivocal findings seen on routine mammographic views and improved the accuracy of mammographic interpretation.

Adult↗
PubMed1989

Bacterial renal infection: role of CT.

The imaging studies done on 62 patients hospitalized for acute renal infections were retrospectively reviewed. Thirty-six (58%) had one or more abscesses, 17 (27%) had focal or diffuse acute bacterial nephritis, five (8%) had pyonephrosis, and four (6%) had pyelonephritis. All had prolonged fever (greater than or equal to 72 hours) and leukocytosis. Among 25 patients examined with both ultrasound (US) and computed tomography (CT), US failed to depict three of five (60%) cases of acute bacterial nephritis and seven of 15 (47%) intrarenal and extrarenal abscesses. One renal abscess was misdiagnosed as a tumor at CT. US is not an adequate screening test for detecting lesions that may require invasive therapy. CT is more sensitive for the detection of acute renal inflammatory disease and for defining the extent of disease for planning of radiologic or surgical intervention.

Abscess↗