The University of Utah
Department of Physics & Astronomy at the University of Utah

Jason Mendes Thesis Defense 12/6/10

Thesis Defense

Jason Mendes

Monday, December 6, 2010
1:00pm (334 JFB)

Title: Motion Compensation in Turbo Spin Echo Angiography


Each year in the United States, a quarter million cases of stroke are caused directly by atherosclerotic disease of the cervical carotid artery. This represents a significant portion of health care costs which could be avoided if high-risk carotid artery lesions could be detected early on in disease progression. There is mounting evidence that Magnetic Resonance Imaging of the carotid artery can better classify subjects who would benefit from interventions. Turbo Spin Echo (TSE) sequences are a class of MRI sequences which provide a variety of tissue contrasts. While high resolution TSE images have demonstrated important details of carotid artery morphology, it is evident that pulsatile blood and wall motion related to the cardiac cycle are still significant sources of image degradation. In addition, patient motion artifacts due to the relatively long scan times of TSE sequences result in an unacceptable fraction of non-interpretable studies. Work done to detect and correct for types of voluntary and physiological patient motion will be presented.

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