To assess myocardial edema in patients affected by AMI and in patients with suspicious AM in terms of signal intensity (SI),
signal to noise ratio (SNR) and contrast-to-noise ratio (CNR) using T2w-short-tau inversion recovery (STIR) sequences acquired with body coils and with both body coils and surface coils.
yocardial edema in patients affected by AMI and in patients with suspicious AM in terms of signal intensity (SI),
signal to noise ratio (SNR) and contrast-to-noise ratio (sequences acquired with body coils and with both body coils...
Methods and Materials
37 patients with diagnosis of AMI or with clinical suspicious of AM (average age 51±14,1) underwent a cardiac magnetic resonance (CMR) using a 1.5 T scanner (Magnetom Avanto; Siemens) equipped with high gradient system (32 channels body coil and surface coils).
T2-STIR sequences were acquired in short axis planes using body coil and both body and surface coils.
Quality and quantity analysis were done comparing T2-STIR values,
CNR and SNR obtained using body coils and both body and surface coils.
All values were compared with...
21(57%) patients with AMI (group A) and 16(43%) patients with suspicious of AM (group B) were evaluated.
T2-STIR values of SI obtained using body coil and using both body and surface coils resulted in group A of 244,28±28,74 vs 191,65±17,12,
in group B of 201,4±65,13 vs 176,14±59,31 (p<0,0001).
SNR and CNR were in group A of 107 vs 8,7 and 48,7vs 3; in group B of 66,7 vs 7,8 and 26,7 vs 1,5 (p<0,0001).
Surface coils coupled with body coils enable a better detection and quantification of myocardial edema in patients affected by AMI and in cases with suspicious myocarditis.
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Friedrich MG (2007) T2-weighted cardiovascular magnetic resonance imaging.
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3. Abdel-Aty H,
Meek C et al (2009) Edema as a very early marker for acute myocardial ischemia: a cardiovascular magnetic resonance study.
J Am Coll Cardiol 53:1194–1201...