M J Besozzi | PubMed Health

PubMed1981

Grid selection for oral cholecystography.

A radiographic and fluoroscopic unit was modified to image without a grid, with one 6:1 grid, and with two crossed 6:1 grids, placed with the strips at right angles (equivalent to a 12:1 grid). Fifty patients were studied in all three modes in both horizontal and upright positions. The crossed 6:1 grids were superior in 80% of cases. In those cases where no grid or one grid was superior, there was a shorter exposure time or no movement by the patient. High-ratio grids should be used for routine cholecystography combined with shorter exposure times for the initial procedure.

Cholecystography↗

PubMed1981

Efficacy study of the small-bowel examination.

Retrospective analysis of 1,020 conventional antegrade small-bowel examinations revealed that the variable which correlated most highly with abnormal radiographic findings was the clinical complex of history, physical examination, and laboratory data which prompted suspicion of small-bowel disease. Thirty indications of possible small-bowel disease were divided into groups carrying (a) a high suspicion and (b) a low suspicion of disease. Pertinent abnormalities were revealed by 14.2% of examinations in the high-suspicion group, compared with 4.9% in the low-suspicion group. The individual indications covered a spectrum of 0-34% abnormality. Overall, 9.7% of examinations (99/1,020) revealed abnormalities, but only 6.6% (67/1,020) were pertinent to the clinical problems. The authors conclude that the efficacy of the small-bowel series is directly dependent upon the reason(s) for which it is performed.

Adolescent↗