A prospective study of chest roentgenographic examinations was conducted to determine if the elimination some or films often routinely obtained might be medically and economically justifiable. Analysis data from over 10,000 suggests that routine screening radiographs, solely because hospital admission scheduled surgery, are not warranted in patients under 20; lateral projection, which can eliminated 20 39 years age, should part examination whenever disease a reasonable possibility is...

A new computed tomographic body scanner, capable of completing a scan in 18 sec., produces dramatically clearer and more precise pictures the abdomen thorax than heretofore possible. Other technical improvements result increased clarity areas not affected by motion, including brain. Potential clinical uses are illustrated.

1. Gastro-intestinal absorption of calcium was studied in man by the measurement forearm radioactivity a large-volume liquid scintillation counter following separate oral and intravenous doses 47CaCl2. From ratio percentages total appearing these determinations fractional estimated. 2. Changes with time administration this isotope were studied; evidence is presented that at 4 h after gives valid assessment absorption. 3. Fractional determined technique correlated well net as from stool...

LOCALIZATION of parathyroid adenomas by arteriography was originally described Seldinger (8) in 1954. Recent reports (2, 5, 7, 8) have stressed displacement the cranial and caudal loops inferior thyroid artery as principal arteriographic sign. With this sign, successful preoperative localization has been achieved 66 per cent (7, down to 0 (4) cases studied. These "localizations" based on are really "lateralizations" without specific identification abnormal parathyroid. Our preliminary...

113 cases of pancreatic and renal disease studied by both ultrasound computed tomography (CT) were analyzed retrospectively. CT provided a diagnosis when was unsuccessful due to overlying bowel gas or obesity obesity, reverberations from ribs, small lesions, multiple lesions. Conversely, lack fat planes respiratory motion. usualy distinguished carcinoma pancreatitis showed focal echogenic mass. resolved cyst neoplasm mixed echo pattern

Doppman, John L. MD; Melson, Leland G. Evens, Ronald Hammond, William MD Author Information

Radiology performed by nonradiologists in the United States: who does what?J H Sunshine, S Bansal and R G EvensAudio Available | Share

Analysis of economics and use MR imaging units in the United States 1990.R G Evens R Evens, JrAudio Available | Share

In 1982, the Graduate Medical Education National Advisory Committee (GMENAC), a prominent national panel, predicted there would be 25,650 full-time equivalent (FTE) diagnostic radiologists, 34% oversupply, by 1990. The radiologists involved in GMENAC, however, using models developed American College of Radiology, projected 19,800 FTE 1990, which was similar to GMENAC estimate need. disagreement arose principally from different assumptions about residents entering specialty. Recent data show...

Improved technical methodology has increased the radiologist's diagnostic capability immeasurably in recent years. Nowhere is this more true than study of renal disease. Nephrotomography and aortography have permitted subtle vivo anatomic analysis, and, recently, selective opacification arteries allowed visualization even very small vessels. The case month illustrates a disease which angiographic findings are diagnostic, pathologic manifested radiographs should alert radiologist to potential...

Seven members in one family have been afflicted with Paget's disease of bone and an additional two a clinical history involvement without definite medical documentation. There is review the literature discussion possible inheritance patterns.

Recent studies present widely varying views on the radiologist staffing situation, ranging from a projected surplus of over 6,000 radiologists to an estimated shortage 5,000. To help clarify American College Radiology undertook stratified random sample survey radiology groups' recruitment efforts and hiring results in 1991. This 192 groups achieved 78% response rate. It found that half all recruited, seeking fill nationwide total 1,900 positions. Larger were more likely recruit than smaller...