Mapping Myocardial Salvage Index by Extracellular Volume Fraction
نویسندگان
چکیده
منابع مشابه
Myocardial T1 and extracellular volume fraction mapping at 3 tesla
BACKGROUND To compare 11 heartbeat (HB) and 17 HB modified lock locker inversion recovery (MOLLI) pulse sequence at 3T and to establish preliminary reference values for myocardial T1 and the extracellular volume fraction (ECV). METHODS Both phantoms and normal volunteers were scanned at 3T using 11 HB and 17 HB MOLLI sequence with the following parameters: spatial resolution = 1.75 × 1.75 × 1...
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Background Extracellular volume fraction cardiac magnetic resonance (ECV-CMR) enables quantitative myocardial tissue characterization. Increased myocardial ECV is correlated to myocardial fibrosis, inversely related to the left ventricle ejection fraction (LVEF), and an independent predictor of mortality. Dilated cardiomyopathy (DCM) is characterized by decreased LVEF and increased LV end-diast...
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Background Severe aortic stenosis (AS) induces diffuse interstitial myocardial fibrosis (MF). CMR late gadolinium enhancement (LGE) technique is useful to detect focal MF. The amount of MF is associated with worse long-term prognosis after aortic valve replacement surgery (AVR). Measurements of T1 relaxation times before and after gadolinium administration allow determination of myocardial extr...
متن کاملMyocardial fibrosis quantified by the extracellular extravascular volume fraction is associated with the left ventricular sphericity index and the left atrial volume index
Methods We measured myocardial Ve in 267 individuals referred for CMR without confounders such as myocardial infarction, where Ve= [l r (1-Hct) Vp]; the specific density of myocardial tissue, r=1.05; the myocardial plasma volume fraction, Vp=0.045, and l=ΔR1myocardium/ ΔR1blood. T1 was measured with an ECG-gated MOLLI sequence acquired before and 20 minutes after a gadolinium contrast bolus (0....
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ژورنال
عنوان ژورنال: Circulation: Cardiovascular Imaging
سال: 2017
ISSN: 1941-9651,1942-0080
DOI: 10.1161/circimaging.117.006680