Gmelin E, Weiss H D, Buchmann F
Eur J Radiol. 1986 Feb;6(1):24-9.
ECG-gating of a pulsed radiation exposure during end-diastole using digital subtraction angiography shows significantly better results in the examination of the aortic arch vessels and pulmonary arteries and may be expected to decrease the rate of false positive diagnosis of stenosis when examining renal arteries. Different types of misregistration artifacts due to a smear effect by integrating several television frames using non-gated DSA are described and schematically explained. Furthermore, a short description of the difficulties which may be encountered with ecg-gated DSA--mainly rapid changes of heart frequency--is given.
使用数字减影血管造影术在舒张末期对脉冲辐射暴露进行心电图门控，在主动脉弓血管和肺动脉检查中显示出明显更好的结果，并且有望在检查肾动脉时降低狭窄的假阳性诊断率。描述并示意性解释了使用非门控数字减影血管造影术通过整合多个电视帧而产生的涂抹效应导致的不同类型配准伪影。此外，还简要描述了心电图门控数字减影血管造影术可能遇到的困难——主要是心率的快速变化。
