[Significance of ultrasound examination and computed tomography in the diagnosis of pancreatic cancer].

The diagnostic sensitivity of USI for localization of a tumor of the pancreatic head was 89.3%, specificity--69.7%, exactness--84.

[Ultrasound scanning and invasive methods of examination of the celiac trunk and superior mesenteric artery in the diagnosis and evaluation of results of the surgical treatment of their stenotic lesions].

The ultrasound duplex scanning with colored pictures of blood flow in the celiac trunk and superior mesenteric artery with occlusive lesion of them by atherosclerosis or compression by the diaphragm is a highly sensitive and sufficiently accurate research method. It allows to detect disturbances in patency of these vessels, the state of blood flow in them and to assess the results of operative treatment. A comparison of the data of preoperative ultrasound duplex scanning and aortic-arteriography has shown coincidence of the localization and, in most cases, the degree of stenosis of the celiac trunk and superior mesenteric artery.

[Topical diagnostic methods in primary hyperparathyroidism].

The efficiency of USI of the neck, scintigraphy of the parathyroid glands (PTG) with selen-methionine and selective catheterization of veins (SCV) of the neck and mediastinum for preoperative determination of the localization of the source of hyperproduction of the parathyroid hormone was analyzed on the basis of results of examination of 149 patients including 51 patients with primary hyperparathyroidism confirmed during the operation. It was noted that none of the methods of topical diagnostics used in the work is thought to be universal for different clinical situations. A method of their complex use is proposed which foresee USI of the neck as the first step.

[Diastolic function of the right ventricle in patients with lung diseases as evidenced by Doppler echocardiography].

The study was undertaken to examine the most informative Doppler echocardiographic parameters to determine right ventricular diastolic function in 46 pulmonological patients with pulmonary hypertension and right ventricular failure and 11 healthy individuals. The patients exhibited the highest blood velocity in the rapid filling phase, as compared to the healthy persons. They also demonstrated increased maximum blood velocities in the rapid filling phase on atrial systole and prolonged late blood flow in the rapid filling phase.