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Biomedical subjects

H C Press

Publications and source records attributed to H C Press.

At least 19 recordsLinked to original sources
PubMed1992

Fused pelvic kidneys: case report.

A case of fused pelvic kidneys is presented. We believe this to be the first report using ultrasound, computed tomography, and magnetic resonance imaging for presentation of a rare anatomic renal anomaly.

Female↗
PubMed1992

Patterns of coal workers' pneumoconiosis in Appalachian former coal miners.

To aid in diagnostic chest film interpretation of coal workers' pneumoconiosis, a composite profile of common radiologic patterns was developed in 98 Appalachian former coal miners who were diagnosed as having coal miner's pneumoconiosis and who applied for black lung benefits. The mean age was 61 years, with a lifetime coal mine dust exposure of 18.7 years. Results showed that chest radiographs of coal workers' simple pneumoconiosis contained small irregular linear opacities more frequently (47%) than small rounded opacities. Sparse profusion of all small opacities was the rule. Small opacities involved two out of six lung zones simultaneously 39% of the time while other combinations occurred less frequently. Lower zones were involved more frequently than upper ones. Thickened pleura occurred in 18% of radiographs. Other frequent radiographic abnormalities were parenchymal calcifications (19%), marked emphysema (12%), and inactive tuberculosis (12%). Calcification of the aortic knob, a degenerative process reflecting age, occurred in 9%. Only one instance of complicated coal workers' pneumoconiosis (progressive massive fibrosis) was encountered (0.7%). Many of the descriptive features of coal workers' pneumoconiosis noted in the literature were not observed in this study. Only one instance of complicated pneumoconiosis was encountered.

Appalachian Region↗
PubMed1989

Sonography in acute appendicitis.

In two patients with an equivocal clinical diagnosis of acute appendicitis, high-resolution sonography demonstrated an inflamed appendix. The appendix of each appeared grossly abnormal and was removed at laparotomy. Pathologic examination confirmed the diagnosis of acute appendicitis. Coupled with a review of the literature, the authors suggest high-resolution sonography as the examination of choice in patients with equivocal clinical findings of acute appendicitis.

Acute Disease↗
PubMed1988

Filling defects of the kidney pelvis.

Filling defects in the renal pelvis should alert radiologists to the possibility of underlying tuberculosis. A case is presented with the major criteria used in differentiating tuberculosis from a neoplasm.

Adult↗
PubMed1987

Heartburn ulcers.

Since esophagitis is increasing in frequency, the authors reviewed case histories of patients with this disorder. The importance of radiographic examination of the stomach and duodenum in patients with esophagitis (heartburn) is stressed.

Adult↗
PubMed1979

Computerized tomography in selected intracranial vascular abnormalities.

Computerized axial tomography (CAT) is a reliable technic for examining patients with a variety of intracranial abnormalities. In acute lesions where there is extravasated blood, the CAT scan shows areas of increased density on the precontrast study which measures 70 to 90 Hounsfield units. In lesions with increased flow or blood volume, the postcontrast study reveals areas of increased density due to greater pooling of contrast medium. In areas of nonhemorrhagic ischemia the CAT scan shows persisting low density.

Cerebral Hemorrhage↗
PubMed1979

Congenital pulmonary lymphangiectasis.

We have described an unusual case of congenital pulmonary lymphangiectasis which does not conform to Felman's classification. We suggest establishing a third category in the group with non-cardiac-associated CPL, entitled "noncardiac, intermediate onset."

Female↗
PubMed1979

Clinical comparison of locetamic acid (cholebrine) and ipodate sodium (Orgrafin).

Locetamic acid (Cholebrine) and ipodate sodium (Oragrafin) were compared in a double blind study of 503 patients. The radiographs were evaluated for contrast density, visualization of common duct, gallstones, residual in the intestinal tract, and side effects. Cholebrine demonstrated better opacification, fewer repeat examinations, slightly greater common duct opacification, and more frequent visualization of gallstones. Oragrafin had less residue. Side effects were minimal with both contrast agents.

Administration, Oral↗
PubMed1979

Breast mass.

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Adenocarcinoma, Scirrhous↗
PubMed1979

Cystic lung.

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Adult↗
PubMed1978

Bedside radiographic examinations: indications and contraindications.

Indications for requesting and performing bedside radiographic examinations in an institutional setting are proposed. A prospective study of such examinations was made in a 500-bed hospital. All nursing units were evaluated for criteria used in requesting bedside examinations. It was found that general medical and surgical wards generate the greatest percentage of bedside studies, and yet their criteria for requesting such studies yielded the lowest percentage of validity. General criteria for utilization of mobile radiographic equipment could lead to better radiographs and improved allocation of equipment and personnel.

Hospital Bed Capacity, 500 and over↗
PubMed1978

Ultrasonic effects on mammalian intestinal muscle membrane.

The effects of ultrasound on the bioelectric activities of rat intestinal muscle were studied. It was found that low level ultrasound of 1.5 W/cm2 inhibited action potentials of the intestinal smooth muscle. This biophysical action of ultrasound had accumulative effects. The presence of high Ca++ in the medium (3.4 mM or 2 x normal [Ca++]) prevented this action of ultrasound. These data suggested that ultrasound probably acted on the calcium influx mechanism of the cell membrane.

Action Potentials↗