Ultrasound in Surgery

摘要: Since its introduction into medicine some 25 years ago ultrasonics has made great strides in both the diagnostic and therapeutic fields is being used to an ever increasing extent clinical medicine. The reasons for this are two-fold; first, it often provides information regarding tissue structure that not obtainable during life of patient by any other technique, second, conventional radiological techniques have proven be more hazardous than was believed previously. Thus, instance, using rather simple pulse-echo techniques, ophthalmology possible measure dimensions various components eye accurately light detect conditions such as detachment retina even when obscured a hemorrhage structures lying front it; cardiology diagnose accumulation fluid pericardial sac or structural functional state several valves heart; obstetrics pregnancy presence fibroid tumors uterus. fact, virtually no organ inaccessible ultrasonic examination. In addition Doppler methods also extensively detection movement pulsations blood vessels. This enables soon fetal heart accessible examination; diagnosis thrombosis (blockage) veins deep leg.