ACUT2E TSE-SSFP produced similar signal-to-noise ratio for acute myocardial infarction compared to TSE (155.9 vs 160.9; P=NS) and twice the SNR of T2-prepared SSFP (73.1; P<0.001).
Does ACUT2E TSE-SSFP improve SNR and CNR compared to T2-prepared SSFP and TSE in imaging acute myocardial infarction?
ACUT2E TSE-SSFP provides bright-blood T2-weighted imaging with SNR and CNR comparable to dark-blood TSE, while eliminating imperfect blood suppression artifacts.
Absolute Event Rate: 155.9% vs 160.9%
p-value: p=NS
ACUT(2)E TSE-SSFP is a hybrid between steady state free precession (SSFP) and turbo spin echo (TSE) for bright-blood T2-weighted imaging with signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) similar to dark-blood TSE. TSE-SSFP uses a segmented SSFP readout during diastole with 180 degrees pulses following a 90 degrees preparation. The 180 degrees refocusing pulses make TSE-SSFP similar to TSE but TSE-SSFP uses gradient moment nulling, whereas TSE uses gradient crushing. TSE-SSFP produced T2-weighted images with minimal T1 weighting. TSE-SSFP and TSE had similar SNR (155.9 +/- 6.0 vs 160.9 +/- 7.0; P = NS) for acute myocardial infarction (MI) and twice the SNR of T2-prepared SSFP (73.1 +/- 3.4, P < 0.001). TSE-SSFP and TSE had approximately double the CNR of T2-prepared SSFP for differentiating acute MI from normal myocardium. Imperfect blood suppression, present in all animals on some TSE images, was a problem eliminated by TSE-SSFP and T2-prepared SSFP.
Aletras et al. (Mon,) conducted a other in Acute myocardial infarction. ACUT2E TSE-SSFP vs. TSE and T2-prepared SSFP was evaluated on Signal-to-noise ratio (SNR) for acute myocardial infarction (p=NS). ACUT2E TSE-SSFP produced similar signal-to-noise ratio for acute myocardial infarction compared to TSE (155.9 vs 160.9; P=NS) and twice the SNR of T2-prepared SSFP (73.1; P<0.001).