Gmelin E, Draude K, Leichle P
Rontgenblatter. 1985 Jan;38(1):17-21.
ECG-triggered DSA of the pulmonary arteries enables far-reaching avoidance of image artifacts which are due to pulsation. However, trigger delay and image duration must be adapted subtly to the individual heart rate. Whereas adaptation of trigger delay can be effected via programming of the new generation of equipment, further improvements will be necessary to achieve an adequate image life or duration of the pulsed irradiation. Experience collected so far has shown that ECG-DSA of the pulmonary arteries yields results that are as valid as those obtained via perfusion scintigraphy, so that this method can be used in initial examination to establish the diagnosis of pulmonary embolism. The use of ECG-DSA is not indicated in absolute cardiac arrhythmia.
肺动脉的心电图触发数字减影血管造影（ECG-triggered DSA）能够极大地避免由脉动引起的图像伪影。然而，触发延迟和图像持续时间必须根据个体心率进行精细调整。虽然新一代设备可通过编程来调整触发延迟，但要实现足够的图像寿命或脉冲照射持续时间，仍需进一步改进。目前积累的经验表明，肺动脉的心电图触发数字减影血管造影所获得的结果与灌注闪烁扫描法的结果一样可靠，因此该方法可用于初步检查以诊断肺栓塞。绝对心律失常患者不适用心电图触发数字减影血管造影。
