What Defines The Best Axial Resolution That Can Be Obtained With A Given Transducer?

What Defines The Best Axial Resolution That Can Be Obtained With A Given Transducer? As more focal zones are added, the frame rate is decreases. Temporal resolution is related to frame rate. What defines the best axial resolution that can be obtained with a given transducer? A: Spatial pulse length x 2. What transducer has