理想的团注对于区分不同血管和心室的充盈时间是非常必要的。
The compactness of the bolus is mandatory to separate the filling times of the different vascular or cardiac compartments.
目的：探讨周围静脉团注法CT血管造影诊断血管疾病的应用价值。
Purpose: To investigate clinical value of around vein mass injection ct Angiography in the diagnosis of angiosis disease.
目的：探讨大剂量对比剂注射器团注在脑转移瘤及其血管成像中的临床意义。
Objective: to evaluate the clinical value of bolus injection with large dose of contrast agent by power injector on MR imaging of metastatic brain tumor and in application of MRA.
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