Bonaldi V M, Garcia P, Bret P M
Service de Radiologie, Hôpital Général de Montréal, Université McGill, Québec, Canada.
J Radiol. 1997 Apr;78(4):265-70.
With the widespread use of spiral CT, a complete reassessment of intravenous injection of contrast material for body computed tomography is necessary. An optimal administration of contrast material with respect to scan timing is indeed more critical with spiral CT. Numerous factors affect hepatic contrast enhancement time-attenuation curves after injection of contrast material into a peripheral vein. Some are patient related, while other result from the modalities of administration of the iodinated agent. The objective of this article is to review the most contributive factors in liver enhancement after iodine injection. Knowledge of these factors can optimize the use of spiral CT, with the expected benefit of saving costs in contrast material.
随着螺旋CT的广泛应用，有必要对用于身体计算机断层扫描的静脉注射造影剂进行全面重新评估。对于螺旋CT而言，在扫描时机方面优化造影剂的给药确实更为关键。将造影剂注入外周静脉后，许多因素会影响肝脏造影增强的时间-衰减曲线。有些因素与患者有关，而其他因素则源于碘化剂的给药方式。本文的目的是回顾碘注射后肝脏增强中最具影响的因素。了解这些因素可以优化螺旋CT的使用，有望节省造影剂成本。
