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Abstract #4604

Improvements of Respiratory Motion Recording: Optical Belt vs. Pneumatic Belt

Laure Rousselet1,2, Julien De Jonckheere3, Franois Narbonneau4, Slavisa Jovanovic1,2, Cdric Pasquier5,6, Jacques Felblinger1,2

1IADI, Nancy-Universit, Nancy, France; 2U947, INSERM, Nancy, France; 3CIC-IT 807, INSERM, Lille, France; 4Multitel, Mons, Belgium; 5CIT 801, INSERM, Nancy, France; 6CHU de Nancy, Nancy, France

MR acquisitions have to be synchronized with respiration to avoid motion artifacts. Pneumatic belts are the most current tool for this purpose. However, these belts suffer from signal drifts and leaks in pneumatic system. To correct these shortcomings an optical sensor in form of belt has been developed using optical fiber Bragg grating sensor (FBG).