Dowdey J E, Murry R C, Bonte F J
Radiology. 1975 Feb;114(2):411-4. doi: 10.1148/114.2.411.
To investigate the quality of gamma camera images obtained with moving collimators, a group of collimators was constructed which could be rotated or sinusoidally oscillated in two dimensions. The date indicate a broadening effect on images in the direction of collimator motion. Moving the collimator during imaging will reduce septal aberrations but will not increase resolution.
为研究使用移动准直器获得的γ相机图像质量,构建了一组可在二维平面内旋转或正弦振荡的准直器。数据表明在准直器运动方向上图像有展宽效应。成像过程中移动准直器将减少间隔偏差,但不会提高分辨率。