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目的 :加深对外伤性急性硬膜下积液 (ATSH )的认识和提高其早期确诊率。方法 :回顾性分析 12 2例ATSH的CT表现、演变过程及其转归情况。CT扫描均用轴位平扫。结果 :本组ATSH 12 2例 186处 ,少量积液 89例 ;迟发性积液 145处 ;积液位于额颞部或 (和 )大脑镰旁前上部 114例 ;复合性积液 10 1例 (合并蛛网膜下腔出血 72例、脑挫裂伤 6 1例 ) ;10 3例经保守治疗痊愈 ,3例演变为慢性硬膜下血肿 ,5例经手术治愈 ;早期漏诊 2 5例。结论 :大脑镰旁前上部是ATSH的好发部位之一 ;少量的ATSH早期可漏诊 ,积液不在损伤相关的部位及扫描未包全额顶部层面是早期漏诊的主要原因
Objective: To deepen the understanding of acute traumatic subdural effusion (ATSH) and to improve its early diagnosis rate. Methods: A retrospective analysis of 122 cases of ATSH CT performance, evolution and outcome of the situation. CT scan with axial plain scan. Results: ATSH12 in this group of 186 cases, a small amount of effusion in 89 cases; 145 cases of delayed effusion; effusion in frontotemporal or (and) falx next to the upper anterior 114 cases; composite effusion 101 cases (72 cases with subarachnoid hemorrhage and 6 cases cerebral contusion and laceration); 103 cases were cured by conservative treatment, 3 cases developed chronic subdural hematoma, 5 cases were cured by operation; 25 cases were missed early diagnosis. Conclusions: The anterior superior part of the falx is one of the predilection sites for ATSH. A small number of early ATSH can be missed, and the effusion is not related to the site of injury and the full top of the scan is not the main reason for early missed diagnosis