Abstract
Methods Total 57 patients with either acute myocardial infarction (n = 38) or chronic myocardial infarction (n = 19) were included in the study. Delayed enhancement (DE) CMR was done using 1.5-T scanner (Sonata or Avanto, Siemens). Standard infarct images were acquired using single-shot, inversion recovery, steady state free-precession sequence. Parallel images were additionally acquired using Generalized Autocalibrating Partially Parallel Acquisition (GRAPPA) and modified Sensitivity Encoding (mSENSE) algorithms. An acceleration factor or PAT factor of 2 used to acquire parallel images. Images were blinded, randomized and scored for hyperenhancement visually on 17-segement model by consensus of 2 observers. Image quality (graded excellent, good or poor) and the presence of artifacts were also assessed (Figure 1).
Highlights
Imaging speed is of critical importance in Cardiac Magnetic Resonance (CMR) imaging especially in patients with severe cardiac disease
Abstracts of the 11th Annual SCMR Scientific Sessions - 2008 Meeting abstracts – A single PDF containing all abstracts in this Supplement is available here. http://www.biomedcentral.com/content/pdf/1532-429X-10-S1-info.pdf
There was no difference between the standard images and Generalized Autocalibrating Partially Parallel Acquisition (GRAPPA) images in terms of extent of infarct (4.84 vs. 4.77, P = 0.43), microvascular obstruction (0.30 vs. 0.34, P = 0.42), transmural infarct score (1.18 vs. 1.13, P = 0.43), and total infarct score (10.78 vs. 10.45, P = 0.41)
Summary
115 Parallel acquisition to improve temporal resolution in the rapid detection of myocardial infarction: comparison of image quality and artifacts. Abstracts of the 11th Annual SCMR Scientific Sessions - 2008 Meeting abstracts – A single PDF containing all abstracts in this Supplement is available here. http://www.biomedcentral.com/content/pdf/1532-429X-10-S1-info.pdf
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