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Abstract #0334

Pulmonary vein MRA with reduced sensitivity to off-resonance using optimized contrast preparation

Mohamed Nagiub1, Madhusudan Ganigara1, Bharti Sharma1, René Botnar2, Tarique Hussain1, and Joshua S Greer1
1Pediatrics, UT Southwestern Medical Center, Dallas, TX, United States, 2Biomedical Engineering, King's College London, London, United Kingdom

Synopsis

3D bSSFP is the standard for anatomical evaluation of congenital heart disease, but provides suboptimal visualization of the pulmonary veins due to off resonance and flow. Solutions have been proposed to reduce the sensitivity of the bSSFP acquisition to these factors with limited success. However, the T2prep pulse that is routinely applied for bSSFP imaging also likely contributes to pulmonary vein signal loss. In this study, we compare multiple contrast preparation schemes for 3D bSSFP imaging which minimize sensitivity of off-resonance to improve pulmonary vein visualization.

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Keywords