Patent ID: 9107564
Filing Date: 2015-08-18
Classification: A61B,G01S

Abstract:
1. An ultrasonic diagnostic imaging system for imaging an image field comprising: a probe including an array of transducer elements; a transmit beamformer, coupled to the array of transducer elements, and operable to transmit a plurality of laterally spaced transmit beams, each encompassing a plurality of laterally spaced line positions; a multiline receive beamformer, coupled to the array of transducer elements, which is operable to produce a plurality of receive lines of the image field at the line positions in response to one transmit beam; a multiline combining circuit, responsive to a plurality of r.f. receive line signals which relate to a common line position produced by the multiline receive beamformer in response to a plurality of transmit beams, which is operable to delay r.f. receive line signals of a receive line with a phase characteristic which varies as a function of depth and to combine the plurality of r.f. receive line signals to produce transmit refocused image data; a motion detector which is operable to detect the presence of motion in the image field; and a display which produces an image utilizing the transmit refocused image data, wherein a number of the plurality of r.f. receive line signals combined by the multiline combining circuit is a function of the presence of motion.