Moström U, Bergström K, Pech P, Ytterbergh C
J Comput Assist Tomogr. 1986 Nov-Dec;10(6):1016-24. doi: 10.1097/00004728-198611000-00023.
A test method with use of a biologic phantom--a deep-frozen specimen of a human cadaver--was developed in an attempt to simulate the clinical setting in CT of the spine. The quality of both soft tissue and bone images in the absence of motion artifacts was evaluated for seven scanner models. Special attention was paid to identification of the pattern and extent of artifacts. The phantom consisted of a spine with surrounding muscles. The images were evaluated subjectively and comparisons were made between the different scanners. Examples of these results are presented. A biologic phantom is a valuable supplement to artificial phantoms and increases the ability to evaluate and compare the performance of CT scanners.
为了模拟脊柱CT的临床环境，开发了一种使用生物模型——人体尸体的深度冷冻标本的测试方法。对七种扫描仪模型在无运动伪影情况下的软组织和骨骼图像质量进行了评估。特别关注伪影的模式和范围的识别。该模型由带有周围肌肉的脊柱组成。对图像进行主观评估，并在不同扫描仪之间进行比较。给出了这些结果的示例。生物模型是对人工模型的有价值补充，增强了评估和比较CT扫描仪性能的能力。
