Abstract #4462
Wideband Arrhythmia-Insensitive-Rapid (AIR) Cardiac T 1 mapping Pulse Sequence for suppressing Image Artifacts induced by ICD
Kyungpyo Hong 1,2 , Eun-Kee Jeong 1 , and Daniel Kim 1
1
UCAIR, Department of Radiology, University
of Utah, Salt Lake City, Utah, United States,
2
Department
of Bioengineering, University of Utah, Salt Lake City,
Utah, United States
Standard cardiac T
1
mapping
generates image artifacts in patients with implantable
cardioverter-defibrillator (ICD). We propose to perform
successful cardiac T
1
mapping
in patients with ICD by incorporating a saturation
radio-frequency pulse with wide frequency bandwidth (8.9
kHz). In 11 subjects with ICD, compared with T
1
measurements
produced by standard T
1
mapping
without ICD as the control, T
1
measurements
by standard T
1
mapping
with ICD were significantly different (p < 0.05),
whereas T
1
measurements
by wideband T
1
mapping
with ICD were not significantly different. This study
demonstrates the feasibility of wideband cardiac AIR T
1
mapping
for suppressing artifacts induced by ICD.
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