T2-prepared SSFP Improves Diagnostic Confidence in Edema Imaging in Acute Myocardial Infarction Compared to Turbo Spin Echo
Overview
Affiliations
T2-weighted MRI of edema in acute myocardial infarction (MI) provides a means of differentiating acute and chronic MI, and assessing the area at risk of infarction. Conventional T2-weighted imaging of edema uses a turbo spin-echo (TSE) readout with dark-blood preparation. Clinical applications of dark-blood TSE methods can be limited by artifacts such as posterior wall signal loss due to through-plane motion, and bright subendocardial artifacts due to stagnant blood. Single-shot imaging with a T2-prepared SSFP readout provides an alternative to dark-blood TSE and may be conducted during free breathing. We hypothesized that T2-prepared SSFP would be a more reliable method than dark-blood TSE for imaging of edema in patients with MI. In patients with MI (22 acute and nine chronic MI cases), T2-weighted imaging with both methods was performed prior to contrast administration and delayed-enhancement imaging. The T2-weighted images using TSE were nondiagnostic in three of 31 cases, while six additional cases rated as being of diagnostic quality yielded incorrect diagnoses. In all 31 cases the T2-prepared SSFP images were rated as diagnostic quality, correctly differentiated acute or chronic MI, and correctly determined the coronary territory. Free-breathing T2 prepared SSFP provides T2-weighted images of acute MI with fewer artifacts and better diagnostic accuracy than conventional dark-blood TSE.
Simultaneous multislice cardiac multimapping based on locally low-rank and sparsity constraints.
Emu Y, Chen Y, Chen Z, Gao J, Yuan J, Lu H J Cardiovasc Magn Reson. 2024; 26(2):101125.
PMID: 39547314 PMC: 11663759. DOI: 10.1016/j.jocmr.2024.101125.
Dehghani S, Shirani S, Jazayeri Gharebagh E Int J Biomed Imaging. 2024; 2024:8456669.
PMID: 38590625 PMC: 11001468. DOI: 10.1155/2024/8456669.
Kobayashi N NMR Biomed. 2024; 37(6):e5112.
PMID: 38299770 PMC: 11078623. DOI: 10.1002/nbm.5112.
Yan X, Ran L, Zou L, Luo Y, Yang Z, Zhang S Quant Imaging Med Surg. 2023; 13(3):1699-1710.
PMID: 36915316 PMC: 10006119. DOI: 10.21037/qims-22-607.
Papalini E, Polte C, Bobbio E, Lagerstrand K Diagnostics (Basel). 2022; 12(12).
PMID: 36553194 PMC: 9777125. DOI: 10.3390/diagnostics12123187.