Effects of steady state free precession parameters on cardiac mass, function, and volumes
نویسندگان
چکیده
منابع مشابه
Spiral balanced steady-state free precession cardiac imaging.
Balanced steady-state free precession (SSFP) sequences are useful in cardiac imaging because they achieve high signal efficiency and excellent blood-myocardium contrast. Spiral imaging enables the efficient acquisition of cardiac images with reduced flow and motion artifacts. Balanced SSFP has been combined with spiral imaging for real-time interactive cardiac MRI. New features of this method t...
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An analysis of the effect of flow on 2D fully balanced steady state free precession (SSFP) imaging is presented. Transient and steady-state SSFP signal intensities in the presence of steady and pulsatile flow were simulated using a matrix formalism based on the Bloch equations. Various through-plane flow waveforms and rates were modeled numerically considering factors such as the excitation sli...
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Introduction: T1ρ MRI is typically performed by magnetization preparation followed by a readout sequence during which the T1ρ-weighted signal is frequency and phase encoded (1). This paradigm is inherently time inefficient and, instead, it might be desirable to continuously acquire the T1ρ-weighted signal in the steady-state. Unfortunately, it isn’t clear how to establish a steady-state T1ρ con...
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A new, fast, spectrally selective steady-state free precession (SSFP) imaging method is presented. Combining k-space data from SSFP sequences with certain phase schedules of radiofrequency excitation pulses permits manipulation of the spectral selectivity of the image. For example, lipid and water can be resolved. The contrast of each image depends on both T1 and T2, and the relative contributi...
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Contrast-enhanced MR angiography (CE-MRA) using steady-state free precession (SSFP) pulse sequences is described. Using SSFP, vascular structures can be visualized with high signal-to-noise ratio (SNR) at a substantial (delay) time after the initial arterial pass of contrast media. The peak blood SSFP signal was diminished by <20% 30 min after the initial administration of 0.2 mmol/kg of Gd-che...
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ژورنال
عنوان ژورنال: The International Journal of Cardiovascular Imaging
سال: 2006
ISSN: 1569-5794,1573-0743
DOI: 10.1007/s10554-006-9191-7