Alfano B, Brunetti A, Ciarmiello A, Salvatore M
Istituto Nazionale Tumori Fondazione Pascale, Università degli Studi Federico II, Napoli, Italy.
J Comput Assist Tomogr. 1992 Jul-Aug;16(4):634-40. doi: 10.1097/00004728-199207000-00025.
A new technique for simultaneous display of multiple MR parameters with a single color-coded image is described. The method is based on the multiparametric nature of MR signals and benefits from the physiologic ability to discriminate color levels better than gray levels. The T1 and T2 relaxation rate maps are first obtained from multi-echo SE and partial saturation sequences. Each parameter is subsequently represented with one or with a combination of two fundamental colors (red, green, blue) into a composite quantitative magnetic color image. Each mixture of chromatic components in the magnetic color image represents a unique combination of the two relaxation parameters, easily interpretable by the human eye, without loss of anatomic information. The potential advantages of the technique are discussed and some practical applications are presented.
描述了一种用单一颜色编码图像同时显示多个磁共振参数的新技术。该方法基于磁共振信号的多参数特性,并受益于比灰度更能分辨颜色水平的生理能力。首先从多回波SE和部分饱和序列中获得T1和T2弛豫率图。随后,每个参数用一种或两种基本颜色(红色、绿色、蓝色)的组合表示为一幅复合定量磁彩色图像。磁彩色图像中每种色度成分的混合代表了两个弛豫参数的独特组合,肉眼易于解读,且不丢失解剖信息。讨论了该技术的潜在优势,并给出了一些实际应用。