High-frame-rate color flow imaging with enhanced spatial resolution in virtual real-time

被引：0
|
作者：
Guidi, Francesco [1 ]
Giangrossi, Claudio [1 ]
Dallai, Alessandro [1 ]
Ramalli, Alessandro [1 ]
Tortoli, Piero [1 ]
机构：
[1] Univ Florence, Dept Informat Engn, I-50139 Florence, Italy
来源：
INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS 2021) | 2021年
基金：
欧盟地平线“2020”;
关键词：
colour flow imaging; high-frame rate; plane wave; continuous-time filtering; real-time; virtual real-time; ULA-OP; 256; DOPPLER;
D O I：
10.1109/IUS52206.2021.9593479
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The transmission of plane waves and parallel beamforming have been successfully used to improve the performance of Colour Flow Mapping (CFM) systems, as they allow the exploitation of effective wall filters in continuous time and autocorrelations with very long ensemble lengths. However, although hundreds of colour maps could be produced in real-time, the computing power requirements still compromise either the frame-rate, the region of interest (ROI) size or the spatial resolution. In this paper, the combination of real-time PW CFM @ 250 frames/sec with the virtual real-time modality of ULA-OP 256, is shown ideal for the investigation of rapidly changing flow at improved spatial resolution and extended ROI size.
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