Integrated physiological flow simulator and pulse sequence monitoring system for MRI

被引：0
作者：
Pauline Wong
Martin J. Graves
David J. Lomas
机构：
[1] University of Cambridge,Department of Radiology
[2] Addenbrooke’s Hospital,undefined
来源：
Medical & Biological Engineering & Computing | 2008年 / 46卷
关键词：
MRI; Data acquisition; Pulse sequence monitoring; Pulsatile flow simulation; Frequency response;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A compact flow simulator for generating accurate pulsatile flow in a clinical magnetic resonance imaging (MRI) environment has been developed and integrated with a data acquisition (DAQ) system for recording scanner system activity and physiological waveforms. The flow simulator is relatively inexpensive, easy to construct and is controlled from a standard PC. The flow simulator is robust to repeated disassembly and reassembly (normalised cross-correlation 0.97) and generates accurate pulsatile flow (normalised cross-correlation 0.94). The DAQ system was used to monitor a standard MRI pulse sequence used in MR angiography and latent delays in the scanner gating subsystem.
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页码：399 / 406
页数：7
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