成人脑梗死及脑血肿近期低剂量CT复查的应用  

Follow up Low Dose CT Scanning of Cerebral Infarction or Hematoma in Adult

作　　者：徐延峰 康立清[1] 冯俊杰[1] 马国军[1] 宋兆伟[1] 孙连营[1] 车延旭[1] 

机构地区：[1]河北省沧州市中心医院医学影像科,061001

出　　处：《临床放射学杂志》2012年第11期1633-1636,共4页Journal of Clinical Radiology

摘　　要：目的探讨成人脑梗死及脑血肿患者近期低剂量CT复查的可行性。方法比较137例脑梗死及130例脑血肿成人患者常规(S组)、75%(L1组)及50%(L2组)剂量头部CT扫描的图像质量及诊断效能。结果 S组与L1组比较,图像质量(P梗死=0.197、P血肿=0.285)及诊断效能(P梗死=1.000、P血肿=0.500)均无统计学差异;S组与L2组比较图像质量(P梗死=0.000、P血肿=0.000)及诊断效能(P梗死=0.002、P血肿=0.031)均有显著统计学差异。结论对于成人脑梗死、脑血肿近期复查患者,75%低剂量CT对临床诊断效能无显著影响。Objective To assess the feasibility of low dose CT（LDCT） for cerebral infarction or cerebral hematoma.Methods 137 adult patients with cerebral infarction and 130 adult patients with cerebral hematoma were selected and divided into the standard dose（group S）,75%-standard-dose（group L1） and 50% standard-dose（group L2）.Image quality and diagnostic efficacy between three groups was compared.Results There was no statistically significant difference in image quality between group S and group L1（Pinfarction=0.197 and Phematoma=0.285）.There was statistically significant difference in image quality between group S and group L2（Pinfarction=0.000 and Phematoma=0.000）.Statistically significant difference did not exist in the CT diagnostic efficacy between group S and group L1（Pinfarction= 1.000 and Phematoma= 0.500）.Statistically significant difference existed in the CT diagnostic efficacy between group S and group L2（Pinfarction=0.002 and Phematoma= 0.031）.Conclusion For recent follow up in adults with cerebral infarction or cerebral hematoma,75% dosage of conventional dose levels can meet the clinical diagnostic requirements.

关 键 词：辐射剂量 体层摄影术 X线计算机 头部 复查 成人 

分 类 号：R743.3[医药卫生—神经病学与精神病学] R816.1[医药卫生—临床医学]