Abstract #4454
T1ρ-mapping of the heart in a single breath-hold
Joep van Oorschot 1 , Hamza El Aidi 1 , Fredy Visser 2 , Peter Luijten 1 , Tim Leiner 1 , and Jaco Zwanenburg 1
1
University Medical Center Utrecht, Utrecht,
Utrecht, Netherlands,
2
Philips
Healthcare, Best, Noord-Brabant, Netherlands
T1ρ-mapping shows promising results for the endogenous
detection of myocardial fibrosis. A T1ρ-map can be
obtained by multiple T1ρ-weighted images with different
spin-lock (SL) preparation times. We propose a cardiac
T1ρ-mapping method in a single breath-hold. Five healthy
volunteers and 2 patients with chronic myocardial
infarction were scanned. T1ρ-mapping was performed by
acquiring 5 images with different SL preparation times
(SL = 0, 10, 20, 30, 40 ms). High resolution T1ρ-maps
were successfully acquired in all subjects. The mean
T1ρ-relaxation time was 52.73 ms. Coefficient of
repeatability in the healthy subjects was 3.74 ms, and
in infarct patients 4.59 ms.
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