CAJ | 학술논문

目的探讨使用双倍剂量对比剂在颈部对比增强磁共振血管造影（CE-MRA）检查中的优势。方法选取行颈部CE-MRA检查的患者400例，200例用单倍剂量对比剂，200例用双倍剂量对比剂，行3D-CE-MRA扫描，经最大密度投影法（MIP）重组获得整体血管图像，并结合原始图像进行分析。所得结果采用2个独立样本的非参数检验方法进行分析。结果200例使用单倍剂量对比剂的患者，图像质量优者为122例，良50例，差28例；200例双倍剂量患者，图像质量优者165例，良30例，差5例。结论采用双倍剂量对比剂所获得的颈部动脉血管图像优于单倍剂量对比剂所得的图像质量，有利于减少误差。
목적탐토사용쌍배제량대비제재경부대비증강자공진혈관조영（CE-MRA）검사중적우세。방법선취행경부CE-MRA검사적환자400례，200례용단배제량대비제，200례용쌍배제량대비제，행3D-CE-MRA소묘，경최대밀도투영법（MIP）중조획득정체혈관도상，병결합원시도상진행분석。소득결과채용2개독립양본적비삼수검험방법진행분석。결과200례사용단배제량대비제적환자，도상질량우자위122례，량50례，차28례；200례쌍배제량환자，도상질량우자165례，량30례，차5례。결론채용쌍배제량대비제소획득적경부동맥혈관도상우우단배제량대비제소득적도상질량，유리우감소오차。
Objective To investigate the advantage of using double-dose contrast agent in contrast enhance-ment MRA (CE-MRA) on neck. Methods Totally 400 cases had undergone 3D-CE-MRA on neck. 200 cases were examed by single-dose (0.2 ml/kg) Gadodiamide, and 200 cases were examed by double-dose (0.4 ml/kg) Gadodi-amide. All acquired coronal pictures were reconstructed using MIP method and were observed by two experienced ra-diologist at the same time. The results were analyzed by two independent sampler non-parametric test in SPSS. Re-sults Among 200 cases using single-dose Gadodiamide, excellent pictures were 122 cases, good pictures were 50 cases, and non-satisfaction pictures were 28 cases. Among 200 cases using double-dose Gadodiamide, excellent pic-tures were 165 cases, good pictures were 30 cases, and non-satisfaction pictures were 5 cases. Conclusion Pictures of carotid artery using double-dose contrast agent are better than those using single-dose contrast agent. And thus may reduce error in clinical practice.