Title :
A cardiac gating device for MRI system
Author :
Anlian Qu ; Lin Li ; Huaguang Kang
Author_Institution :
Huazhong Univ. of Sci. & Tech., Hubei, China
Abstract :
An electrocardiograph (ECG) sensing device which is compatible with a magnetic resonance (MR) imager is described. It is used to synchronize the imaging sequences with a specific phase of the cardiac cycle. It is designed to detect the ECG signal and to generate a MR-sequence triggering pulse. Noise and artifacts induced by the radio-frequency pulses and magnetic field gradients inherent in MR imaging are electrically suppressed by using an isolated acquisition module and a fiber-optic cable to amplify and transmit the ECG signal.<>
Keywords :
biomedical NMR; biomedical electronics; electrocardiography; ECG sensing device; ECG signal amplification; ECG signal transmission; MRI system; NMR sequence triggering pulse; RF pulses; artifacts; cardiac cycle phase; cardiac gating device; electrical suppression; fiber-optic cable; magnetic field gradients; magnetic resonance imaging; medical diagnostic imaging; noise; Electrocardiography; Magnetic noise; Magnetic resonance; Magnetic resonance imaging; Pulse amplifiers; Pulse generation; Radio frequency; Signal design; Signal detection; Signal generators;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA, USA
DOI :
10.1109/IEMBS.1989.95892
