3D myocardial T 1 mapping using saturation recovery
نویسندگان
چکیده
منابع مشابه
3D myocardial T 1 mapping using saturation recovery
PURPOSE To propose a 3D quantitative high-resolution T1 mapping technique, called 3D SASHA (saturation-recovery single-shot acquisition), which combines a saturation recovery pulse with 1D-navigator-based-respiratory motion compensation to acquire the whole volume of the heart in free breathing. The sequence was tested and validated both in a T1 phantom and in healthy subjects. MATERIALS AND ...
متن کامل3D saturation recovery imaging for free breathing myocardial T1 mapping
Background Longitudinal magnetization relaxation time (T1) mapping can overcome limitations of late gadolinium enhancement for the detection of diffuse fibrosis in the myocardium. Several T1 mapping methods have been proposed in recent years; however most of them are limited to 2D breath-hold acquisitions with associated limitations in signal-to-noise ratio (SNR) and spatial resolution. A MOdif...
متن کاملSaturation recovery single-shot acquisition (SASHA) for myocardial T(1) mapping.
PURPOSE To validate a new saturation recovery single-shot acquisition (SASHA) pulse sequence for T1 mapping and to compare SASHA T1 values in heart failure patients and healthy controls. THEORY The SASHA sequence consists of 10 electrocardiogram-triggered single-shot balanced steady-state free precession images in a breath-hold. The first image is acquired without magnetization preparation an...
متن کاملJoint myocardial T1 and T2 mapping using a combination of saturation recovery and T2 -preparation.
PURPOSE To develop a heart-rate independent breath-held joint T1 -T2 mapping sequence for accurate simultaneous estimation of coregistered myocardial T1 and T2 maps. METHODS A novel preparation scheme combining both a saturation pulse and T2 -preparation in a single R-R interval is introduced. The time between these two pulses, as well as the duration of the T2 -preparation is varied in each ...
متن کاملMyocardial T1-mapping at 3T using saturation-recovery: reference values, precision and comparison with MOLLI
BACKGROUND Myocardial T1-mapping recently emerged as a promising quantitative method for non-invasive tissue characterization in numerous cardiomyopathies. Commonly performed with an inversion-recovery (IR) magnetization preparation at 1.5T, the application at 3T has gained due to increased quantification precision. Alternatively, saturation-recovery (SR) T1-mapping has recently been introduced...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2017
ISSN: 1053-1807
DOI: 10.1002/jmri.25575