Hickey D S, Checkley D, Aspden R M, Naughton A, Jenkins J P, Isherwood I
Br J Radiol. 1986 Jun;59(702):565-76. doi: 10.1259/0007-1285-59-702-565.
A method for the determination of relaxation times in clinical magnetic resonance images is described. Three components are measured: the spin-lattice (T1) and spin-spin (T2) relaxation times and the proton density (M infinity). These components are separated in the algorithm to give increased tissue discrimination. Multiple data points are used to minimise error and increase reproducibility. Errors that arise in imaging data because of the short sequence repetition periods are considered and a technique for their reduction described. Clinical results obtained using the method are reviewed. These results demonstrate the clinical utility of the technique.
描述了一种用于确定临床磁共振图像中弛豫时间的方法。测量了三个分量:自旋晶格(T1)和自旋-自旋(T2)弛豫时间以及质子密度(M∞)。在算法中分离这些分量以增强组织辨别力。使用多个数据点来最小化误差并提高可重复性。考虑了由于短序列重复周期在成像数据中出现的误差,并描述了一种减少这些误差的技术。回顾了使用该方法获得的临床结果。这些结果证明了该技术的临床实用性。