【摘要】 目的探讨缺血性脑血管病DSA检查及介入治疗过程中能够清晰显示血管病变的最佳实用投照角度,为其影像诊断及介入治疗提供精确图像数据信息。方法通过对随机抽取的1000例缺血性脑血管病患者全脑血管造影或介入治疗图像进行分析,得出被选择血管的最佳实用投照角度。本组病例均对双侧锁骨下动脉、双侧椎动脉、双侧颈内动脉起始段及颅内段等相关血管进行常规正侧位DSA图像采集,有针对性地进行斜位投照。结果基底动脉狭窄病变的最佳实用投照角度为向足侧斜(CAUD)28°±5°;椎动脉颅内段狭窄病变的最佳实用投照角度为右前斜位(RAO)25°±3°或者左前斜位(LAO)25°±3°;右椎动脉起始段狭窄病变的最佳实用投照角度为LAO20°±5°+向头侧斜(CRAN)15°±5°;左椎动脉起始段狭窄病变的最佳实用投照角度为RAO20°±5°;右侧锁骨下动脉起始段狭窄病变的最佳实用投照角度为RAO40°±7°+CAUD20°±7;左侧锁骨下动脉狭窄病变的最佳实用投照角度为LAO50°±6°;大脑中动脉M1段近端的最佳投照角度为RAO15°±5°或者LAO15°±5°;大脑中动脉M1段靠近分叉处狭窄病变的最佳实用投照角度为LAO25°±5°或者RAO25°±5°。结论应用最佳实用投照角度,能够清晰显示目标血管狭窄病变的形态、程度等信息,为介入治疗提供最佳的工作位置,有助于缺血性脑血管病的影像诊断和介入治疗。更多还原

【Abstract】 Objective To study the best practical projection angle for clearly displaying the vasculopathy in the process of interventional examination and therapy of ischemic cerebrovascular diseases, and to provide precise imaging data. Methods One thousand patients of ischemic cerebrovascular disease were randomly collected and their angiographies angiograms of diagnosis and treatment and the best practical projection angle selected were analyzed. In this group,all images collected were in routine anteroposterior and lateral projections of the origins and intracranial segments of bilateral subclavian arteries, vertebral arteries, carotid arteries and some of them were only performed with oblique projection directly. Results The true lateral projection for basilar artery angusty was CAUD 28° ± 5°; RAO 25° ± 3°, LAO 25° ± 3°; LAO 25° ± 5° + CRAN 15° ± 5°; RAO 20° ± 5°; RAO 40° ± 7° + CAUD 20° ± 7°; LAO 50° ± 6°; RAO 15° ± 5°, LAO 15° ± 5°; and LAO 25° ± 5, RAO 25° ± 5° were the proper parameters of practical projection angles for displaying intracranial segment of vertebral artery, the right proximal segment of vertebral artery, the right subclavian artery, the left subclavian artery, the middle cerebral artery subterminal M1(horizontal segment) and the middle cerebral artery M1 near the bifurcation respectively. Conclusion Using the practical projection angle can display exact information of angiostenosis clearly, provide the best localization, help imaging diagnosis and interventional therapy of ischemic cerebrovascular disease.更多还原