三维DSA及二维DSA在颅内动脉瘤诊疗中应用价值比较.doc

三维DSA及二维DSA在颅内动脉瘤诊疗中应用价值比较.doc

  1. 1、本文档共12页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
三维DSA及二维DSA在颅内动脉瘤诊疗中应用价值比较

三维DSA及二维DSA在颅内动脉瘤诊疗中应用价值比较  【摘要】 目的 探讨三维数字减影血管造影(3DDSA)在颅内动脉瘤诊疗中的价值及其与二维数字减影血管造影(2DDSA)相比的优势。方法 对53例因蛛网膜下腔出血(SAH)入院而CT疑诊为颅内动脉瘤的患者同时进行2DDSA和3DDSA检查,分别阅片并记录动脉瘤的检出情况、瘤颈显示情况、瘤体与载瘤动脉的关系及对比剂用量和X线照射剂量,对其结果进行比较分析。结果 53例患者中2DDSA诊断46例共49枚动脉瘤,占84.5%(49/58),诊断的阳性率为86.8%(46/53),灵敏度为92%,特异度为81.8%;3DDSA诊断50例共58枚动脉瘤,占100%(58/58),诊断的阳性率为94.3%(50/53),灵敏度和特异度均为100%。2DDSA检出的动脉瘤中,清楚显示瘤颈者23枚,清楚显示瘤体与载瘤动脉关系者22枚;3DDSA组清楚显示瘤颈者58枚,清楚显示瘤体与载瘤动脉关系者56枚(P<0.05)。53例患者行2DDSA检查平均所接受的辐射剂量及对比剂用量分别为(178.32±17.39) mGy和(74.57±11.95)mL,行3DDSA检查则为(99.81±9.48)mGy和(54.15±7.05)mL(P<0.05)。结论 3DDSA能更清晰地显示瘤颈及瘤体与载瘤动脉的关系,提供血管内治疗的最佳工作角度,并能明显减少造影剂的用量和X线辐射剂量,提高了放射防护的安全性。 【关键词】 颅内动脉瘤;成像,三维;脑血管造影术   To evaluate 3D digital subtraction angiography (DSA) and 2DDSA in diagnosis of intracranial aneurysms. Method Both 3DDSA and 2DDSA were performed on 53 patients with subarachnoid hemorrhage(SAH) suspected as cerebra1 aneurysms by CT. Results In the 2DDSA group, the accurate rate, positive rate, sensitivity and specificity were respectively 84.5% (49/58), 86.8%(46/53), 92%, and 81.8%. In the 3DDSA group, the accurate rate and positive rate were 100%(58/58) and 94.3%(50/53), and the sensitivity and specificity were both 100%. By 2DDSA, 23 cases of neck of the aneurysm were clearly shown, and 22 cases displayed the source vessel, however, by 3DDSA, 58 cases of neck of the aneurysm and 56 cases of source vessels were clearly shown, the difference between 2D and 3DDSA was significant(P<0.05). The mean radiation dose and contrastmedium of 2DDSA were (178.32±17.39) mGy and (74.57±11.95)mL, while those of 3DDSA were (99.81±9.48) mGy and (54.15±7.05) mL, the difference between the two groups was also significant(P<0.05). Conclusions The neck of the aneurysm and source vessel are clearer in 3DDSA than in 2DDSA,also the radiation and contrastmedium doses are much lower in 3DDSA than in 2DDSA.   Key words: Intracranial aneurysm; Imaging, threedimensional; Cerebral angiography 颅内动脉瘤(intracranial aneurysm,

文档评论(0)

linsspace + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档