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Abstract #2526

Dynamic MR Perfusion Imaging Vs. Time-Resolved MR Angiography Vs. MDCT: Disease Extent Assessment and Outcome Prediction for Patients with Acute Pulmonary Thromboembolism

Keiko Matsumoto1, Yoshiharu Ohno1, Hisanobu Koyama1, Yumiko Onishi1, Daisuke Takenaka1, Munenobu Nogami1, Nobukazu Aoyama2, Hideaki Kawamitsu2, Tsutomu Araki3, Kazuro Sugimura1

1Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan; 2Division of Radiology, Kobe University Hospital, Kobe, Japan; 3Department of Radiology, University of Yamanashi, Japan

MDCT has become the first imaging examination in suspected APTE patients. As well as technical advances of CT, technical advances of magnetic resonance (MR) imaging make it possible to obtain time-resolved MR angiography or perfusion MR imaging (perfusion MRI) in APTE patients. We hypothesized that quantitatively assessed pulmonary perfusion parameters from contrast-enhanced perfusion MRI have potential for disease extent assessment and have predictive capability of patient outcome in APTE patients. The aim of our study was therefore to directly compare the capability for disease severity assessment and patient outcome prediction of MDCT and MR techniques in APTE patients.