A wide field-of-view microvascular imaging using diverging transmit beams in a curved-array transducer

摘要

Ultrafast compound Doppler imaging enables high-sensitivity microvascular imaging using the large amount of spatial and temporal samples within a short acquisition time. In addition, the longer ensemble length from the ultrafast transmit strategy facilitates efficient clutter rejection filtering. However, the ultrafast microvascular imaging using plane-wave excitation, which is widely used in linear array transducer, may not be suitable for abdominal applications such as hepatic or kidney vessels due to limited field-of-view (FOV) and imaging depth. In this paper, we presents a wide FOV microvascular imaging method using diverging transmit beams in a curved array transducer.