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Biomedical subjects

R S Breiman

Publications and source records attributed to R S Breiman.

7 recordsLinked to original sources

CT-pathologic correlations in Hodgkin's disease and non-Hodgkin's lymphoma.

In order to assess its potential uses in the staging and treatment planning of lymphoma, CT was performed in 27 newly diagnosed, previously untreated patients with Hodgkin's disease or non-Hodgkin's lymphoma; 18 staging laparotomies provided pathologic correlations. CT detected and defined disease in areas not well evaluated by conventional techniques (high para-aortic, mesenteric, splenic hilar nodes). CT interpretation of splenic size and weight correlated well with splenic weight confirmed at pathology. Nodules were identified in several spleens containing foci of lymphoma.

Adolescent

Early experience with the Varian Six Second body scanner in the diagnosis of hepatobiliary tract disease.

Thirty-four patients with liver disease were studied with a research model of the Varian Six Second body scanner. Useful information was gained in patients with a variety of hepatic disorders. This scanner permits resolution of normal hepatic parenchymal detail which has not been reported previously and has reduced the streak artifacts originating from high- and low-CT objects which have been a major source of image degradation with other units.

Adult

Stop-action cardiac computed tomography.

Computed tomographic (CT) cardiac imaging in vivo has been hampered by motion of the heart during its cardiac cycle. A technique of post data-acquisition correlation of the angular projection data using the electrocardiogram as a reference signal is described. This method produced seven "stop action" images of the heart and resulted in delineating morphological detail not recognizable on the conventional CT scan.

Electrocardiography

Computed tomography of abdominal paraaortic lymph node disease: preliminary observations with a 6 second scanner.

Eleven patients suspected of having tumor involving para-aortic lymph nodes were studied with the Varian 6 second whole body CT scanner. All patients had a pedal lymphangiogram; six were abnormal. In three of these six, CT provided clinically important information on the extent of disease which was not detectable by other radiographic studies. CT scanning improved on lymphangiographic interpretation when large bulky nodes were only partially filled and when whole chains of nodes failed to fill. In both situations, the enlarged paraaortic nodes were well delineated on CT. The internal architecture and morphological abnormalities of small well filled nodes were better portrayed by lymphangiography. In the four cases in which lymphangiograms were normal and the one case in which the lymphangiogram showed reactive hyperplasia, the CT scans were normal.

Adult