CMR Mapping Techniques for Myocardium at Risk
نویسندگان
چکیده
منابع مشابه
Quantification of the area-at-risk by T1 and T2 mapping CMR at 3T
Methods CMR imaging at 3T (Bio-graph mMR, Siemens Healthcare, Erlangen, Germany) was performed in 18 STEMI patients within 10 days of PPCI using T2-mapping and T1-mapping by MOLLI (WIP #699; Siemens Healthcare; UK). Matched short-axis T1 and T2 maps covering the entire left ventricle were analyzed by 2 experienced investigators using 3 analytical methods (in-house macro, ImageJ): manual segment...
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BACKGROUND Accurate assessment of myocardium at risk (MaR) after acute myocardial infarction (AMI) is necessary when assessing myocardial salvage. Contrast-enhanced steady-state free precession (CE-SSFP) is a recently developed cardiovascular magnetic resonance (CMR) method for assessment of MaR up to 1 week after AMI. Our aim was to validate CE-SSFP for determination of MaR in an experimental ...
متن کاملProbability mapping of scarred myocardium using texture and intensity features in CMR images
BACKGROUND The myocardium exhibits heterogeneous nature due to scarring after Myocardial Infarction (MI). In Cardiac Magnetic Resonance (CMR) imaging, Late Gadolinium (LG) contrast agent enhances the intensity of scarred area in the myocardium. METHODS In this paper, we propose a probability mapping technique using Texture and Intensity features to describe heterogeneous nature of the scarred...
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Automatic segmentation of myocardium at risk from contrast enhanced SSFP CMR: validation against expert readers and SPECT
BACKGROUND Efficacy of reperfusion therapy can be assessed as myocardial salvage index (MSI) by determining the size of myocardium at risk (MaR) and myocardial infarction (MI), (MSI = 1-MI/MaR). Cardiovascular magnetic resonance (CMR) can be used to assess MI by late gadolinium enhancement (LGE) and MaR by either T2-weighted imaging or contrast enhanced SSFP (CE-SSFP). Automatic segmentation al...
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ژورنال
عنوان ژورنال: JACC: Cardiovascular Imaging
سال: 2012
ISSN: 1936-878X
DOI: 10.1016/j.jcmg.2012.02.011