402 IR-SSFP (Inversion Recovery Steady-State Free Precession)
نویسندگان
چکیده
منابع مشابه
SNR using balanced steady-state free precession (b-SSFP)
A brief overview of the signal-to-noise ratio in MR imaging; including the sources of signal and noise and their respective parameters for optimization. In particular, the balanced SSFP sequence is presented as an example of a special type of gradient-echo (GE) sequence where the dephasing due to readout gradient is exactly zero. Thus b-SSFP yields a very high SNR, in some applications, by cont...
متن کاملFMRI using balanced steady-state free precession (SSFP)
Steady-state free precession (SSFP) is a highly-efficient MRI pulse sequence that has been a fairly recent arrival in the functional MRI realm. Several methods for using balanced SSFP to detect the BOLD signal have been proposed to date and will be discussed in this review. After a brief introduction to the general properties of SSFP, this review describes the quite different approaches of tran...
متن کاملBalanced Phase Contrast Steady State Free Precession (PC-SSFP): Velocity Encoding by Gradient Inversion
chnique for velocity measurements (PC-SSFP) is presented that combines CINE Phase Contrast (PC) MRI and balanced Steady State Free Precession. Sensitivity to through plane velocities was established by inverting (i.e. negating) the slice select gradient for consecutively executed balanced SSFP pulse sequences. Velocity sensitivity (venc) could be adjusted by increasing the first moments of the ...
متن کاملFree-breathing renal MR angiography with steady-state free-precession (SSFP) and slab-selective spin inversion: initial results.
BACKGROUND The aim of our study was the investigation of a novel navigator-gated three-dimensional (3D) steady-state free-precession (SSFP) sequence for free-breathing renal magnetic resonance angiography (MRA) without contrast medium, and to examine the advantage of an additional inversion prepulse for improved contrast. METHODS Eight healthy volunteers (mean age 29 years) and eight patients...
متن کاملPulmonary relaxometry with inversion recovery ultra-fast steady-state free precession at 1.5T.
PURPOSE To present a technique for simultaneous mapping of T1 , T2 , and relative spin density (M0 ) in human lung using inversion recovery ultra-fast steady-state free precession (IR-ufSSFP) imaging. METHODS Pulmonary relaxometry with IR-ufSSFP is based on an interleaved time series acquisition of 2D images acquired at 1.5T. The technique was tested in a phantom and in four healthy volunteer...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2008
ISSN: 1532-429X
DOI: 10.1186/1532-429x-10-s1-a116