Straiton J A, Macpherson P, Teasdale E M
Department of Neuroradiology, Institute of Neurological Sciences, Glasgow, UK.
Neuroradiology. 1991;33(1):19-21. doi: 10.1007/BF00593327.
The value of angled temporal lobe cuts as a supplement to conventional head computed tomography (CT) has been assessed by comparing the diagnostic yield of standard axial and specific temporal lobe images (TLCT) in 62 patients with temporal lobe epilepsy and 87 with Alzheimer-type senile dementia. Fewer than one patient in six had structural abnormality in the temporal lobe most readily demonstrated by axial CT. Five patients with epilepsy and ten with dementia had changes demonstrated only by TLCT, reported on by one or other of a pair of observers. However such changes were of dubious clinical relevance, or arose as a result of artefact. In one patient with epilepsy and underlying neoplasm, axial CT was positive and TLCT false-negative. The routine addition of temporal lobe cuts to a conventional axial examination confers no added benefit to justify the prolonged examination time and increased radiation dose to the lens of the eye.
通过比较标准轴位图像和特定颞叶图像（TLCT）对62例颞叶癫痫患者和87例阿尔茨海默型老年痴呆患者的诊断效果，评估了倾斜颞叶层面扫描作为传统头部计算机断层扫描（CT）补充手段的价值。每六名患者中不到一名患者的颞叶结构异常能通过轴位CT最清晰地显示出来。五名癫痫患者和十名痴呆患者有仅通过TLCT显示出的变化，由一组观察者中的一人或另一人报告。然而，这些变化的临床相关性存疑，或者是由伪影导致的。在一名患有癫痫且有潜在肿瘤的患者中，轴位CT呈阳性而TLCT呈假阴性。在传统轴位检查中常规添加颞叶层面扫描并不能带来额外益处，以证明延长检查时间和增加眼部晶状体的辐射剂量是合理的。
