Good W F, Gur D, Herron J M, Kennedy W H
Department of Radiology, University of Pittsburgh, Pennsylvania 15261.
Med Phys. 1987 Sep-Oct;14(5):867-9. doi: 10.1118/1.596014.
A simple, easy to use, quality assurance and performance test phantom was developed for the xenon/computed tomography (CT) cerebral blood flow method. The phantom combines an inhalation system which allows for the simulation of xenon buildup or washout in the arterial blood as well as a multisection translatable cylinder in which several sections can be scanned during a preselected protocol to simulate the CT enhancement in brain tissue during a study. The phantom and scanning protocol are described and their use is demonstrated. The results compare favorably to the theoretically expected fast, intermediate, and slow "flow" values designed into the phantom.
我们为氙气/计算机断层扫描（CT）脑血流测定法开发了一种简单易用的质量保证和性能测试体模。该体模结合了一个吸入系统，可模拟动脉血中氙气的积聚或清除，以及一个多层面可平移圆柱体，在预先选定的方案中，可以对几个层面进行扫描，以模拟研究过程中脑组织的CT增强情况。本文描述了该体模和扫描方案，并展示了其用途。结果与体模中设计的理论预期快速、中等和慢速“血流”值相比效果良好。
