Patent ID: 9146313
Filing Date: 2015-09-29
Classification: A61B,G01S

Abstract:
1. A method of constructing an ultrasound image, comprising: transmitting an omni-directional unfocused ultrasound waveform from a transmit aperture comprising at least one transducer element and approximating a first point source within the transmit aperture on a first array through a target region; receiving ultrasound echoes from the target region with first and second receiving elements disposed on a first receive aperture on a second array, the first array being physically separated from the second array; retrieving position data describing a mechanical and acoustic position of each of the first receiving element, the second receiving element, and the at least one transducer element of the transmit aperture relative to a common reference point; determining, using the position data, a first time for the waveform to propagate from the first point source to a first pixel location in the target region to the first receiving element, and determining a second time for the waveform to propagate from the first point source to the first pixel location in the target region to the second receiving element; and forming a first ultrasound image of the first pixel location by combining a first echo received by the first receiving element at the first time with a second echo received by the second receiving element at the second time.