Irie T, Suzuki S, Yamauchi T, Kusano S
Department of Radiology, National Defense Medical College, Saitama, Japan.
Acta Radiol. 1995 Mar;36(2):154-8.
A technique for the prediction of the time to peak hepatic enhancement to optimize contrast-enhanced spiral CT has been developed. The procedures are (a) to inject a small amount of contrast medium rapidly via the antecubital vein and measure aortic transit time (ATT) of the bolus by single slice dynamic CT; (b) to inject contrast medium at a high rate, expecting peak hepatic enhancement to occur at ATT plus 8 seconds after the end of injection; (c) to perform spiral scanning of the liver using thin collimation and caudo-cranial table movement beginning at ATT after the end of contrast medium injection.
一种用于预测肝脏强化峰值时间以优化对比增强螺旋CT的技术已被开发出来。步骤如下：(a) 通过肘前静脉快速注射少量造影剂，并通过单层动态CT测量造影剂团块的主动脉通过时间(ATT)；(b) 以高速率注射造影剂，预期在注射结束后ATT加8秒时出现肝脏强化峰值；(c) 在造影剂注射结束后从ATT开始，使用薄层准直和尾颅方向的床移动对肝脏进行螺旋扫描。
