Hawkins I F
AJR Am J Roentgenol. 1982 Jul;139(1):19-24. doi: 10.2214/ajr.139.1.19.
Arterially injected carbon dioxide coupled with digital subtraction fluoroscopy consistently produced clinically useful images of arteries in 17 patients. Occasionally good parenchymal images and venograms were also obtained. The buoyancy of the gas requires that the area of interest be in a nondependent position to insure good arterial perfusion. The exceedingly low viscosity of gas should permit delivery of the CO2 via microcatheters which would lessen the risk of arterial injury. CO2 does not produce hypersensitivity reactions and, even in large volumes, should not produce the discomfort associated with iodinated contrast material.
经动脉注射二氧化碳并结合数字减影荧光透视法，在17例患者中持续产生了临床上有用的动脉图像。偶尔也能获得良好的实质图像和静脉造影图像。气体的浮力要求感兴趣区域处于非下垂位置，以确保良好的动脉灌注。气体极低的粘度应允许通过微导管输送二氧化碳，这将降低动脉损伤的风险。二氧化碳不会产生过敏反应，即使大量使用，也不应产生与碘化造影剂相关的不适。
