Abstract #3839
Phase-Contrast Cine MR Imaging of Pulmonary Artery to Assess Outcome of Balloon Pulmonary Angioplasty in Patients with Chronic Thromboembolic Pulmonary Hypertension
Yoshiaki Morita 1 , Naoaki Yamada 1 , Emi Tateishi 1 , Kumi Ozaki 1 , Yoshihiro Sanda 1 , Suzu Kanzaki 1 , Akihiro Tsuji 2 , Shigefumi Fukui 2 , Takeshi Ogo 2 , Tetsuya Fukuda 1 , Masahiro Higashi 1 , Norifumi Nakanishi 2 , and Hiroaki Naito 1
1
Department of Radiology, National Cerebral
and Cardiovascular Center, Suita, Osaka, Japan,
2
Division
of Cardiology, National Cerebral and Cardiovascular
Center, Suita, Osaka, Japan
Recently, balloon pulmonary angioplasty (BPA) has been
performed as a treatment option for chronic
thromboembolic pulmonary hypertension (CTEPH) with
improvement of clinical status and hemodynamics. In this
study, we demonstrated that phase-contrast MR imaging
(PC-MRI) enables to quantify the pulmonary hemodynamic
improvement after BPA. Especially, the change between
before and after BPA of AT/ET (acceleration time to
ejection time ratio) measured by PC-MRI has a good
correlation with that of mean pulmonary artery pressure,
suggesting that AT/ET might offer a modality for the
noninvasive and repeatable monitoring after BPA.
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