非可视等密度硬膜下积液的统计学检测

Statistical detection of nonvisible isodense subdural fluid collections.

作者信息

Reid M H, Dublin A B

出版信息

J Comput Assist Tomogr. 1979 Aug;3(4):491-6. doi: 10.1097/00004728-197908000-00010.

DOI:10.1097/00004728-197908000-00010

Abstract

An analytic method for detecting isodense subdural fluid collections from computed tomography (CT) scan pixel attenuation data is presented. Analysis of 44 CT scan levels from 8 patients with isodense subdural hematomas (ISDH) and 50 CT scan levels from 15 patients without ISDH indicates 6% false positive and 3% false negative errors if the analysis is restricted to noncontrast CT scans that demonstrate subcalvarial bilateral cortical attenuation symmetry in the pictorial display.

摘要

本文提出了一种从计算机断层扫描（CT）扫描像素衰减数据中检测等密度硬膜下积液的分析方法。对8例等密度硬膜下血肿（ISDH）患者的44个CT扫描层面和15例无ISDH患者的50个CT扫描层面进行分析，结果表明，如果分析仅限于在图像显示中表现出颅骨下双侧皮质衰减对称的非增强CT扫描，则假阳性误差为6%，假阴性误差为3%。