"reduced depth of field (as it shortens pulse travel distance)"
"reduced depth of field (as it shortens pulse travel distance)"
Expected headings
"Explanation"
"Factors which improve temporal resolution"
"Ultrasound images are generated by sending high-frequency sound pulses along a set number of beam trajectories (lines) into the tissue beneath the transducer. For each beamline, the transducer sends a pulse and then waits for any reflected echoes from the tissue below, down to the maximum depth of field setting. Each individual beam is addressed in sequence; the transducer will not move to the next beamline until echoes from the maximum depth of field in the previously fired beam have been received 1,3."