Steady state free precession magnetization transfer imaging
نویسندگان
چکیده
منابع مشابه
Impact of Magnetization Transfer on Relaxometry using Transient Steady-State Free Precession Imaging
Introduction. Several methods proposed the use of the transient response of balanced steady-state free precession (bSSFP) for quantification of relaxation times and spin densities [1-3]. After inversion, the transition to steady state closely follows a mono-exponential signal behavior with an apparent relaxation rate T1* [1,4], which depends on the flip angle, T1 and T2. However, it has been sh...
متن کاملSpin Locked Steady-State Free Precession Imaging
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...
متن کاملMultiple Acquisition Fat-Saturated Balanced Steady State Free Precession Imaging
INTRODUCTION While balanced-SSFP (bSSFP) imaging is advantageous in its ability to produce high SNR in short imaging times, its clinical application has been limited due to several well-known shortcomings. The bright signal from fat is typically unwanted, and the short repetition times (TRs) required to avoid banding artifacts lead to limitations in the achievable resolution. This is especially...
متن کاملImaging periodic currents using alternating balanced steady-state free precession.
Existing functional brain MR imaging methods detect neuronal activity only indirectly via a surrogate signal such as deoxyhemoglobin concentration in the vascular bed of cerebral parenchyma. It has been recently proposed that neuronal currents may be measurable directly using MRI (ncMRI). However, limited success has been reported in neuronal current detection studies that used standard gradien...
متن کاملFlow-Insensitive, Motion-Compensated Balanced Steady-State Free Precession Imaging
O. Bieri, J. Leupold, G. Laub, K. Scheffler Department of Medical Radiology, MR-Physics, University of Basel, Basel, Switzerland, Department of Radiology, Section of Medical Physics, Freiburg, Germany, Siemens Medical Solution, Los Angeles, CA, United States Introduction. For conventional balanced steady state free precession b-SSFP pulse sequences employing gradient reversal echoes and short r...
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: Magnetic Resonance in Medicine
سال: 2008
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.21781