Intracranial Dural Arteriovenous Fistulas: Diagnosis and Evaluation with 64-Detector Row CT Angiography

NCU Institutional Repository > 理學院 > 物理學系 > 期刊論文 > Item 987654321/52775

請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/52775

題名:	Intracranial Dural Arteriovenous Fistulas: Diagnosis and Evaluation with 64-Detector Row CT Angiography
作者:	Lee,CW;Huang,A;Wang,YH;Yang,CY;Chen,YF;Liu,HM
貢獻者:	物理學系
關鍵詞:	DIGITAL-SUBTRACTION-ANGIOGRAPHY;COMPUTED TOMOGRAPHIC ANGIOGRAPHY;MASK BONE ELIMINATION;OF-THE-LITERATURE;SUBARACHNOID HEMORRHAGE;CEREBRAL-ANGIOGRAPHY;ANEURYSMS;CLASSIFICATION;METAANALYSIS;FEASIBILITY
日期:	2010
上傳時間:	2012-06-11 10:43:35 (UTC+8)
出版者:	國立中央大學
摘要:	Purpose: To analyze the diagnostic effectiveness and application of computed tomographic (CT) angiography by using a new algorithm (hybrid CT angiography) in dural arteriovenous fistulas (AVFs). Materials and Methods: Institutional review board approval was obtained for retrospectively postprocessing the raw data from CT angiography by using hybrid CT, which is a mixture of a bone subtraction and masking method for bone removal. The study included 22 patients with 24 dural AVFs and 14 control subjects. The grades in patients with dural AVF determined with hybrid CT angiography and digital subtraction angiography (DSA) were compared, and hybrid CT angiography was applied as a tool for planning endovascular treatment. The adjusted Wald method was used to estimate confidence intervals (CIs), and the Cohen kappa statistic was used to assess interobserver agreement. Results: Hybrid CT angiography in the 24 dural AVFs revealed asymmetric sinus enhancement in 22 lesions (92%), engorged arteries in 19 (79%), transosseous enhanced vessels in 19 (79%), engorged extracranial veins in 13 (54%), engorged cortical veins in seven (29%), and sinus thrombosis in four (17%). In all 24 lesions, at least two of six imaging signs for diagnosis of dural AVFs were present. The kappa test analysis revealed a high level of interobserver agreement (kappa, 0.56-1.00) in reading the diagnostic imaging signs. The observed agreement between DSA and readers was 100% in the cavernous sinus region and in hypoglossal and clival lesions and 78%-89% in the transverse sigmoid sinus. The overall sensitivity, specificity, positive predictive value, and negative predictive value were 0.93 (95% CI: 0.85, 0.97), 0.98 (95% CI: 0.93, 1.00), 0.97 (95% CI: 0.90, 0.99), and 0.95 (95% CI: 0.90, 0.98), respectively. Conclusion: Hybrid CT angiography is a promising tool for the diagnosis of dural AVF. It can provide key information necessary for treatment planning.
關聯:	RADIOLOGY
顯示於類別:	[物理學系] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	616	檢視/開啟

在NCUIR中所有的資料項目都受到原著作權保護.

社群 sharing

資料載入中.....