The ultrasonic diagnosis of acute thrombophlebitis of the vena saphena magna

A total of 321 patients with suspected acute thrombophlebitis were examined. There were 92 men (30%) and 229 women (70%). For control 15 patients without lower limb vein abnormalities and 19 ones with uncomplicated varicose disease were examined. Ultrasonic examinations using Ultramark-8 (Medata, Sweden) device were carried out in all the patients. Of the 313 cases (in 8 patients the diagnosis of acute thrombophlebitis was not confirmed by ultrasonic examination) ultrasonography results were erroneous in only 6 cases when assessing the proximal borderline of the great subcutaneous femoral vein thrombosis. Hence, the accuracy of duplex scanning in assessment of the proximal border of thrombosis in acute thrombophlebitis was 98.6% in our study. Ultrasonic angio-scanning in patients with superficial thrombophlebitis give reliable and valuable information about the presence, type, and extension of the pathologic process. This helps to optimally solve the therapeutic policy problems and adequately plan surgical intervention.     

Relaxational filtration

The relaxational phenomena arising in the filtration of real liquids due to silt deposition and suffosion by pores by particles suspended in filtrate are considered.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 55, No. 3, pp. 442–447, September, 1988.     

Procedures for estimating the strength of hard alloys with dynamic loading

Experimental procedures are described for determining the dynamic strength properties of high-strength hard alloys. Results are provided for dynamic tests in compression, bending, and spailing. Failure of cylindrical strikers is studied in the case of collision with a target.Translated from Problemy Prochnosti, No. 11, pp. 78–88, November, 1992.