ULTRASONIC INTRA-OPERATION METHOD FOR DIAGNOSING LARGE INTESTINE CARCINOMA AND ITS PROPAGATION Russian patent published in 1999 - IPC

FIELD: medicine. SUBSTANCE: method involves setting ultrasonic sterile transducer for scanning operation field after carrying out surgical revision. Liver metastases are diagnosed by scanning with T-shaped transducer and their position and size are determined. Regional and distant lymphatic nodes metastases are diagnosed with their shape, size and structure being determined. Ultrasonic revision of large intestine tumor is carried out by producing a series of longitudinal, inclined and transverse cross-section images to determine tumor spread, its structure and intestine wall infiltration depth. Tumor development process invasion into surrounding tissues and neighbouring organs is also determined. Required amount of operation intervention being accomplished, ultrasonic revision of removed tumor zone with injured lymphatic nodes is carried out in operation field. Removed macropreparation control examination is carried out. Ultrasonic diagnostic examination is performed at 5.5-10 MHz scanning frequency. EFFECT: complete amount of information received; detailed operation intervention area description. 3 cl