[Echographic evaluation of gallbladder contractility].
The advantages of echography (EG) in the follow-up of morphologic and structural changes of cholecyst are wellknown. In this paper we tried to prove the possibilities of echography in the evaluation of cholecyst contractility as the reflection of its function. In 70 patients peroral cholegraphy (POH) and EG were performed simultaneously. In POH the congruence of contraction intensity evaluation, made visually and measured, was present in 74.3% of the cases, and EG in 71.4%. In relation to visual evaluation, the measurements in cm proved to be reliable. The evaluation of cholecyst contractility by measurements in cm was statistically congruent in POH and EG. According to the results of investigation, the measurements of cholecyst length and width in the left oblique position were more reliable. The total length was a more constant measure of cholecyst size. The contractility was satisfactory if 1/3 of total width (a) and length (b) was approximately equal to the total of width and length before (A) and after (B) stimulation. This can be expressed by the following formula: K 1/3 (a+b) A (a+b) - B (a+b). The echographic evaluation of contractility can be used as an additional procedure to cholecyst investigation and that it can replace POH completely.