Foley W D, Keyes G S, Smith D F, Belanger B, Sieb L E, Lawson T L, Thorsen M K, Stewart E T
Radiology. 1983 Jul;148(1):265-71. doi: 10.1148/radiology.148.1.6856848.
A preliminary investigation of the feasibility and practical clinical utility of combined temporal energy (hybrid) subtraction for intravenous digital subtraction angiography (DSA) was performed in 19 selected patients. Studies of carotid, aortic arch, pulmonary, and aortorenal vessels were obtained. Soft-tissue misregistration artifacts were effectively removed with hybrid subtraction. Image integration was used to produce a signal-to-noise ratio equivalent to that of single frame temporal subtraction. Diagnostic improvements were produced in 20% of the examinations. Hybrid subtraction techniques resulted in an average increase of incident radiation dose to the skin of 15%.
对19例选定患者进行了静脉数字减影血管造影（DSA）联合时间能量（混合）减影可行性和实际临床效用的初步研究。获得了颈动脉、主动脉弓、肺部和主肾血管的研究图像。混合减影有效地消除了软组织配准伪影。图像融合用于产生与单帧时间减影相当的信噪比。20%的检查有诊断改善。混合减影技术使皮肤的入射辐射剂量平均增加了15%。
