Interleaved balanced SSFP imaging: Artifact reduction using gradient waveform grouping
نویسندگان
چکیده
منابع مشابه
Eddy current-induced artifact reduction in spiral trajectory balanced-SSFP for transition-band SSFP fMRI
J. Lee, J. M. Pauly Electrical Engineering, Stanford University, Stanford, CA, United States Introduction Balanced SSFP is known to be very sensitive to any magnetization disturbance since all gradients are fully refocused in every TR and the phase accrual between RF pulses solely comes from offresonance precession. One of the major sources for this magnetization disturbance is eddy currents th...
متن کاملQuantitative magnetization transfer imaging using balanced SSFP.
It is generally accepted that signal formation in balanced steady-state free precession (bSSFP) is a simple function of relaxation times and flip angle only. This can be confirmed for fluids, but for more complex substances, magnetization transfer (MT) can lead to a considerable loss of steady-state signal. Thus, especially in tissues, the analytical description of bSSFP requires a revision to ...
متن کاملFast Gradient Echo Sequences Including Balanced SSFP
Many common magnetic resonance imaging sequences are classified either as spin echo or gradient echo techniques. Generally, a gradient echo occurs when spins are coherent regardless of their position within the sample. This occurs whenever the net gradient area since a previous echo is zero. In a spin echo, spins are coherent regardless of their resonance frequency [1]. Here we will focus on gr...
متن کاملBanding Artifact Reduction in 2D CINE Balanced SSFP at 3.0 T Using Phase-Cycling and k-t BLAST
Introduction Balanced steady-state free precession (bSSFP) offers excellent signal-to-noise ratio (SNR) and consistent blood/myocardium contrast which renders 2D CINE bSSFP an ideal clinical choice for LV function assessment [1] at 1.5 T. bSSFP imaging remains challenging at 3.0 T due to its sensitivity to adverse off-resonance effects induced by strong field inhomogeneities at the heart-lung i...
متن کاملInterleaved Spiral In/Out b-SSFP Acquisition for Functional Imaging
INTRODUCTION Balanced-steady-state free precession (b-SSFP) sequences provide an advantageous approach for functional imaging. Passband bSSFP (pbSSFP) fMRI utilizes rapid RF excitations that reduce susceptibility artifacts such as image distortion and signal dropout frequently encountered in conventional gradient echo images [1]. To reduce the sensitivity of pbSSFP fMRI to physiological noise c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2009
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.21628