During the past 5 years balanced steady-state free precession (SSFP) has become increasingly important for diagnostic and functional imaging. Balanced SSFP is characterized by two unique features: it offers a very high signal-to noise ratio and a T2/T1-weighted image contrast. This article focuses on the physical principles, on the signal formation, and on the resulting properties of balanced SSFP. Mechanisms for contrast modification, recent clinical application, and potential extensions of this technique are discussed.
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http://dx.doi.org/10.1007/s00330-003-1957-x | DOI Listing |
Magn Reson Med
November 2024
Ming Hsieh Department of Electrical and Computer Engineering, Viterbi School of Engineering, University of Southern Calillrnia, Los Angeles, California, USA.
Purpose: To develop a robust single breath-hold approach for volumetric lung imaging at 0.55T.
Method: A balanced-SSFP (bSSFP) pulse sequence with 3D stack-of-spiral (SoS) out-in trajectory for volumetric lung imaging at 0.
J Cardiovasc Magn Reson
December 2024
National Engineering Research Center of Advanced Magnetic Resonance Technologies for Diagnosis and Therapy, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China. Electronic address:
Background: Cardiac balanced steady state free precession (bSSFP) cine imaging suffers from banding and flow artifacts induced by off-resonance. The work aimed to develop a twofold phase cycling sequence with a neural network-based reconstruction (2P-SSFP+Network) for a joint suppression of banding and flow artifacts in cardiac cine imaging.
Methods: A dual-encoder neural network was trained on 1620 pairs of phase-cycled left ventricular (LV) cine images collected from 18 healthy subjects.
Magn Reson Med
November 2024
Ming Hsieh Department of Electrical and Computer Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California, USA.
Purpose: To determine the feasibility of simultaneous multi-slice (SMS) real-time MRI (RT-MRI) at 0.55T for the evaluation of cardiac function.
Methods: Cardiac CINE MRI is routinely used to evaluate left-ventricular (LV) function.
MAGMA
October 2024
Dept. of Radiology, Case Western Reserve University, 11100 Euclid Ave / Bolwell B115, Cleveland, OH, 44106, USA.
Standard quantitative abdominal MRI techniques are time consuming, require breath-holds, and are susceptible to patient motion artifacts. Magnetic resonance fingerprinting (MRF) is naturally multi-parametric and quantifies multiple tissue properties, including T and T. This work includes T* and off-resonance mapping into a free-breathing MRF framework utilizing a pilot tone navigator.
View Article and Find Full Text PDFPediatr Radiol
November 2024
Department of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390, USA.
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