A cardiac gating device for MRI system

Author

Anlian Qu ; Lin Li ; Huaguang Kang

Author_Institution

Huazhong Univ. of Sci. & Tech., Hubei, China

fYear

1989

Firstpage

601

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IEMBS.1989.95892

Filename

95892