Goodenough D J, Weaver K E
Comput Radiol. 1984 Sep-Oct;8(5):297-308. doi: 10.1016/0730-4862(84)90042-8.
The concept of "low contrast resolution" in CT scanners is examined. Several questions are raised, not only about limitations to interpretation of figures of merit of low contrast resolution, such as contrast-detail diagrams; but also, interpretation of related CT physical performance parameters, such as: noise, dose, spatial resolution and slice width (or sensitivity profile). Caveats are raised concerning interpretation of contrast-detail studies and the degree to which first-order observer studies are reflective of the actual clinical situation. Particular care is suggested in interpretating contrast-detail diagrams in which sensitivity, specificity and the number of target signals may be varying.
对CT扫描仪中“低对比度分辨率”的概念进行了研究。提出了几个问题，不仅涉及低对比度分辨率品质因数（如对比度-细节图）的解释局限性；还涉及相关CT物理性能参数的解释，如：噪声、剂量、空间分辨率和切片宽度（或灵敏度分布）。针对对比度-细节研究的解释以及一级观察者研究反映实际临床情况的程度提出了注意事项。在解释灵敏度、特异性和目标信号数量可能变化的对比度-细节图时，建议格外小心。
