Irion K M, Faust U, Trier H G, Lepper R D
Ultraschall Med. 1984 Jun;5(3):126-30. doi: 10.1055/s-2007-1012082.
A computer-assisted interactive method for M-scan analysis is presented. The digital M-scan, which is taken from the posterior wall of the human eye - in vivo - , is a sequence of digitised, broadband r.f.-time amplitude echograms (center frequency: 15 MHz). The effect of pulsation in the normal posterior wall of the eye and the dynamic changes and tissue movements after stress conditions can be pointed out and estimated quantitatively. A detected set of dynamic features can be used for an exact determination of the layers of the posterior ocular wall. For the indication of the dependence between changes of the thickness of the layers and the heart rate, the finger pulse is digitised and stored synchronously to the echograms. Good correlation will be expected for the movements in the choroid of the eye and the heart rate. The registration of the dynamics is performed in the color-coded M-scan by an adapted image processing software. Results of the M-scan analysis are presented as examples of the normal posterior wall.
本文介绍了一种用于M扫描分析的计算机辅助交互式方法。数字M扫描是从人眼活体后壁获取的，是一系列数字化的宽带射频时间幅度回波图（中心频率：15MHz）。可以指出并定量估计正常眼后壁脉动的影响以及应激条件后的动态变化和组织运动。检测到的一组动态特征可用于精确确定眼后壁的各层。为了表明各层厚度变化与心率之间的相关性，将手指脉搏数字化并与回波图同步存储。预计眼脉络膜运动与心率之间会有良好的相关性。通过适配的图像处理软件在彩色编码的M扫描中进行动态记录。作为正常后壁的示例，给出了M扫描分析的结果。
