T1 quantification with inversion recovery TrueFISP
نویسندگان
چکیده
منابع مشابه
Rapid T1 quantification based on 3D phase sensitive inversion recovery
BACKGROUND In Contrast Enhanced Magnetic Resonance Imaging fibrotic myocardium can be distinguished from healthy tissue using the difference in the longitudinal T1 relaxation after administration of Gadolinium, the so-called Late Gd Enhancement. The purpose of this work was to measure the myocardial absolute T1 post-Gd from a single breath-hold 3D Phase Sensitivity Inversion Recovery sequence (...
متن کاملInversion recovery TrueFISP: quantification of T(1), T(2), and spin density.
A novel procedure is proposed to extract T(1), T(2), and relative spin density from the signal time course sampled with a series of TrueFISP images after spin inversion. Generally, the recovery of the magnetization during continuous TrueFISP imaging can be described in good approximation by a three parameter monoexponential function S(t) = S(stst)(1-INV exp(-t/T(*) (1)). This apparent relaxatio...
متن کامل3D Time-of-Flight MRA Using Inversion Recovery TrueFISP
A major drawback of 3D time-of-flight (TOF) sequences is progressive saturation of inflowing spins along the slab direction, and a sufficient long TR or shaped excitation pulses are required to compensate for this. Here we present a new TOF technique based on a combination of selective inversion and 3D acquisition with TrueFISP. The stationary tissue is partially suppressed by the inversion pul...
متن کاملRapid T1 Determination with Optimized Inversion Recovery Sequence
Introduction: There is continuing interest in rapid quantitative measurements of spin-lattice relaxation time (T1). Conventionally, an inversionrecovery (IR) sequence is used to determine T1, with logarithmic spacing of inversion recovery times (ti), a long pre-delays (td), and with data fitted to a single-exponential equation. Spin-echo (SE) or fast-spin-echo (FSE) techniques may be applied fo...
متن کاملMyocardial iron quantification using modified Look-Locker inversion recovery (MOLLI) T1 mapping at 3 Tesla
Background Quantification of myocardial iron overload is critical for the management of patients with hemochromatosis. The effects of excess iron on T1 and T2* relaxation times correlate directly with tissue iron concentration. T2* became the clinical standard at 1.5T as it can be easily obtained in a fast one breath-hold ECG gated multi-echo GRE sequence. At 3T, however, T2* quantification can...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2001
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.1097