[Ultrasound diagnosis of acute cancer-related colorectal obstruction].

Partial or complete obstruction was diagnosed by means of sonography with water filling (hydrosonography) in 48 patients with rectal or colonic cancer. The procedure appeared highly effective in detecting pathological lesions larger than 1.0 cm.

[Ultrasound study in the diagnosis of small and large intestinal obstruction].

The results of ultrasound study were analyzed in 148 and 26 patients with acute small and intestinal obstruction, respectively, the causes of the latter included different diseases of the intestine and abdominal organs. The commonest ultrasound symptoms based on the diameter of the bowel, on the thickness and structure of the intestinal wall, on the status of mucosal motility folds of intestinal loops and on the pattern of motility were defined. They enable one to differentiate large and small intestinal obstruction and to define its degree with a high degree of validity.

[Ultrasound and hydroultrasound diagnosis of colonic and rectal tumors].

A method of US hydrocolonoscopy with the use of multicomponent contrast medium has been applied to examine 76 patients with tumors of the straight intestine and segmented one. Cancer has been diagnosed in 56 patients, benign tumors in 19 patients, lymphosarcoma of the blind gut has been revealed in one case. It is stated that a complex US examination of the straight and segmented intestines has a number of additional diagnostic potential in a visualization of the wall thickness, structure, tumor size and in a determination of the lesion length as compared with other radiation methods of observation.