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Abstract #3764

Imaging of Pulmonary Artery and Vein Using ASL Based Non-Contrast MRA Technique

Tomoyuki Okuaki1,2, Takeshi Ishimoto3, Momoe Kawakami3, Masaru Ishihara4, Tetsuro Ogino1, Ivan Zimine1, Marc Van Cauteren5, Toshiaki Miyati6

1Clinical Science, Philips Electronics Japan, Minato-ku, Tokyo, Japan; 2Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan; 3Hyogo Brain and Heart Center, Japan; 4Kakogawa Medical Center, Japan; 5Philips Healthcare, Netherlands; 6Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan

For lung imaging, depiction of pulmonary artery (PA) and vein (PV) can be done using ASL based technique. However, visualization of PV using conventional ASL approach is challenging because tagged blood in the pulmonary artery requires several seconds to reach the vein. In this work we evaluated the possibility of simultaneous visualization of PA and PV using ASL based technique at multiple inversion times (TI). For PA, high scores were observed at TI=800ms and 1100ms respectively; For PV, highest score was observed at TI=300ms. Expected clinical application is imaging of patients with pulmonary infarction.