Ultrasonic diagnostic imaging system with automatically controlled contrast and brightness

The ultrasonic imaging system comprising the TGC for automatically selecting or when the diagnostic program. When the automatic TGC circuit clinician starting is analyzed the current image data, calculating to the first TGC the adjusting. The ultrasonic wave system with display TGC curve; the represents a predetermined the TGC and a any artificial fine using automatic control methods and apparatus for modifying the clinician is. The preferred embodiment, automatic TGC methods and apparatus for modifying with the integral automatic gain and dynamirange adjusting, the movable optimizing of the image quality automatic.