T1 mapping of myocardium using inversion recovery cine at 3.0T

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T1 mapping of myocardium using inversion recovery cine at 3.0T

Methods The sequence, IR-rttfl, performs realtime turboflash acquisition after an inversion pulse to capture the recovery of inverted magnetization. It is immune to T1 unrelated issues (e.g., field inhomogeneity). Diastolic images (about 12) are selected for T1 calculation using [4]. A trigger delay (about 300-400 ms) is applied before the inversion pulse so that initial magnetization recovery ...

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PURPOSE To evaluate the reproducibility and sensitivity of the modified CINE inversion recovery (mCINE-IR) acquisition on rats for measuring the myocardial T1 at 7 Tesla. MATERIALS AND METHODS The recently published mCINE-IR acquisition on humans was applied on rats for the first time, enabling the possibility of translational studies with an identical sequence. Simulations were used to study...

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Myocardial T1 mapping at 3.0T using inversion recovery FLASH readout

Background Myocardial T1 mapping methods such as modified Look-Locker inversion-recovery (MOLLI) typically use balanced steady state free precession (bSSFP) readout, which is known to be particularly sensitive to off resonance and thus limits its utility at higher field strengths. Fast low angle shot (FLASH) imaging is known to be more robust against susceptibility artifacts than bSSFP. However...

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Fast T1 Mapping using modified Double-Inversion Recovery pre-pulse

INTRODUCTION The rapid measurement of the longitudinal relaxation time (T1) would allow for dynamic quantification of tissue perfusion or therapy response after administration of an extracellular or target specific T1 lowering contrast agent. Currently used T1 mapping methods are based on Inversion Recovery (IR) approaches and the subsequent sampling of the recovery of the Mz magnetization [1]....

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ژورنال

عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance

سال: 2014

ISSN: 1532-429X

DOI: 10.1186/1532-429x-16-s1-p379