Fuchs Friedrich, Laub Gerhard, Othomo Kuni
Siemens Medical Solutions, Magnetic Resonance Division, PO Box 32 60, 91052 Erlangen, Germany.
Eur J Radiol. 2003 Apr;46(1):28-32. doi: 10.1016/s0720-048x(02)00330-3.
Magnetic resonance imaging (MRI) using steady-state free precession (SSFP) sequences was described in the early years of MR imaging. However, due to hardware imperfections, these techniques were not robust enough at the time to play any significant role in clinical MRI. More recently, significant hardware improvements became widely available, and the SSFP sequences such as TrueFISP (true fast imaging with steady-state precession) became very popular for a variety of clinical applications due to the distinct improvements in signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR). The purpose of this article is to give an overview on the basics of TrueFISP imaging and to demonstrate its potential for current clinical applications with a focus on cardiovascular MRI.
磁共振成像（MRI）中使用稳态自由进动（SSFP）序列的技术在MRI发展早期就已被描述。然而，由于硬件存在缺陷，这些技术在当时还不够成熟，无法在临床MRI中发挥重要作用。近年来，随着硬件的显著改进，诸如TrueFISP（稳态进动真快速成像）等SSFP序列因信噪比（SNR）和对比噪声比（CNR）有明显提高，在各种临床应用中变得非常流行。本文旨在概述TrueFISP成像的基本原理，并以心血管MRI为重点，展示其在当前临床应用中的潜力。
