Biomedical subjects
Publications and source records attributed to S Watt-Boolsen.
A 29-year-old female suffering from acute terminal ileitis was subjected to laparotomy undertaken on the tentative diagnosis of acute appendicitis. The appendix was found to be normal and was removed. The course was complicated with segmental gastro-intestinal gangrene with fatal outcome. The involvement of histotoxic clostridial infection as a causative factor is discussed.
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Radiologists with very limited practical experience in mammography initially achieved a low PVpos (0.50) and a high PVneg (0.95) in blind mammography of 80 patients with 85 excised and histologically examined breast tumours. After having read films from approximately 2500 patients the initial films were blindly reevaluated. PVneg was unchanged, whereas PVpos was elevated significantly (0.80). The intraobserver variation was 11.5 per cent. The actual interobserver variation was 3.2 per cent. These findings indicate that the reliability of blind mammography in patients with palpable tumours of the breast is considerable, also in case of only limited mammographic experience.