摘要
比较分析双源CT血管成像（DSCTA）和3．0T磁共振血管成像（MRA）在颅内动脉瘤诊断中的应用价值。我们回顾性分析了2010年1月～2011年12月期间53例拟诊为颅内动脉瘤且完成DSCTA、3．0TMRA和三维数字减影血管造影（3DDSA）检查患者的影像学资料，以3DDSA为“金标准”，计算了DSCTA和3．0TMRA诊断颅内动脉瘤的敏感度、特异度、阳性预测值、阴性预测值和准确率，同时比较了这两种方法对动脉瘤大小判断的准确性。经3DDSA证实，53例患者中35例被发现动脉瘤42个。DSCTA在32例中发现动脉瘤37个，漏诊患者3例和动脉瘤5个。3．0TMRA在33例中发现动脉瘤33个，漏诊患者5例和动脉瘤8个，误诊患者3例。DSCTA和3．0TMRA的敏感度、特异度、阳性预测值、阴性预测值和准确率分别为91．4％VS．85．7％、100％VS．83．3％、100％VS．90．9％、85．7％vs．75．0％和94．3％／vs．84．9％。DSCTA和3．0TMRA对瘤体大小的判断没有统计学差异。通过对比研究我们认为，DSCTA和3．0TMRA对颅内动脉瘤均有较高的检出率，但DSCTA对微小动脉瘤的检出率高于3．0TMRA，两种方法对动脉瘤大小的测量准确率高。
To comparatively study the diagnostic value of dual resource computed tomography angiography （DSCTA） and 3.0T magnetic resonance angiography （MRA） for intracranial aneurysm, we analyzed retrospectively radio- graphic data of DSCTA, 3.0T MRI and three dimensional digital subtraction angiography （3D DSA ） in cases sus- pected intracranial aneurysms during Jan. 2010 to Dec. 2011. With 3D DSA as ＂gold standard＂, the sensitivity, spe- cificity, positive predictive value, negative predictive value, and accuracy of DSCTA and 3.0T MRA in diagnostic of intracranial aneurysms were analyzed, and the accuracy of both methods on evaluation of aneurysms size was com- pared as well. Totally fifty-three suspected cases were included, and forty-two intracranial aneurysms in thirty-five cases were identified by 3D DSA. For DSCTA, 37 aneurysms were detected in 32 patients, and 3 patients and 5 an- eurysms were missed in all patients. However, for 3.0T MRA, 33 aneurysms were detected in 33 patients, 5 pa tients and 8 aneurysms were missed, and 3 patients who did not have aneurysms were misdiagnosed as ones with in tracranial aneurysms. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of DSCTA and 3.0T MRA were 91.4% vs. 85.7% ,100% vs. 83.3% ,100% vs. 90.9% ,85.7% vs. 75.0% and 94.3% vs. 84.9%, respectively. There was no significant difference in evaluation of aneurysms size between using the two methods. Data suggested that both DSCTA and 3.0T MRA had high accuracy for detection intracranial aneurysms and evaluation of aneurysms size, but as for detection of microaneurysms, DSCTA was superior to 3.0T MRA.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2013年第5期993-998,共6页
Journal of Biomedical Engineering
关键词
颅内动脉瘤
CT血管成像
磁共振血管成像
数字减影血管造影
Intracranial aneurysms
Computed tomography angiography （CTA）
Magnetic resonance angiography（MRA）
Digital substraction angiography（DSA）
