A control system approach to subject specific prospective respiratory motion correction in cardiac MRI

Respiratory motion of the heart is a problem for high-resolution cardiac MRI. Diaphragmatic navigator gating with a 5mm acceptance window is most commonly used to address this but has an inherently low respiratory efficiency that is further compromised by respiratory drift. A novel method is presented that uses data from multiple navigators prior to the imaging segment as input for a control system to predict the diaphragm position throughout the imaging segment and correct the slice position in real time.

Grantor dc:publisher.institution

Department of Human Biology

Year dc:date.issued

2012

Author dc:creator

• Burger, Ian H

Advisor dc:contributor.advisor

• Meintjes, Ernesta

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/10220

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/10220