Abstract #2700
Evaluate Radial and Longitudinal Myocardial Motion Velocity in Left and Right Ventricles for Repaired Tetralogy of Fallot Patients by Phase-Contrast MRI
Meng-Chu Chang 1 , Ming-Ting Wu 2 , Marius Menza 3 , Mao-Yuan Su 4 , Hung-Chieh Huang 2 , and Hsu-Hsia Peng 5
1
Interdisciplinary Program of Nuclear
Science, National Tsing Hua University, Hsinchu, Taiwan,
2
Department
of Radiology, Kaohsiung Veterans General Hospital,
Kaohsiung, Taiwan,
3
Medical
Physics, Department of Radiology, University Hospital
Freiburg, Freiburg, Germany,
4
Department
of Medical Imaging, National Taiwan University Hospital,
Taipei, Taiwan,
5
Department
of Biomedical Engineering and Environmental Sciences,
National Tsing Hua University, Hsinchu, Taiwan
Tetralogy of Fallot (TOF) patients frequently encounter
residual pulmonary regurgitation (PR) after repaired
surgery. To prevent irreversible heart failure, repaired
TOF (rTOF) patients have to undergo pulmonary valve
replacement (PVR) to relieve PR and its pathological
response to myocardium. This study aims to evaluate
radial and longitudinal myocardial velocities and septal
curvature for rTOF by phase-contrast MRI. Prior to
significant impaired left ventricular ejection fraction,
the quantified indices can provide satisfied information
to assess regional abnormal myocardial function and flat
curvature of septum in rTOF. Those indices might be
helpful for patient managements regarding the timing of
undergoing PVR surgery.
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