4 Flow MRI in a 6-year-old boy with isolated unilateral pulmonary vein atresia was performed to evaluate the flow volume and flow pattern in both pulmonary arteries. This is a case report in which a comprehensive evaluation including blood flow analysis was useful for therapeutic strategy.

Marie-Luise Kromrey, Hiroaki Kise, Junji Hirose, Masashi Yoshizawa, Takako Toda, Yosuke Kono, Yuto Sunaga, Hisashi Johno, Satoshi Funayama, Hiroshi Onishi, Kevin Johnson, Oliver Wieben, and Utaroh Motosugi, "Right Pulmonary Vein Atresia in a Mildly Symptomatic Boy: Comprehensive Analysis of Flow Dynamics Using Non-contrast-enhanced 4D Flow MR Imaging", Magnetic Resonance in Medical Sciences, Published Online (2020) doi.org/10.2463/mrms.ici.2019-0109.