Holmes D R, Wondrow M A, Gray J E, Vetter R J, Fellows J L, Julsrud P R
Department of Diagnostic Radiology, Mayo Clinic, Rochester, Minnesota 55905.
J Am Coll Cardiol. 1990 Jan;15(1):159-62. doi: 10.1016/0735-1097(90)90193-s.
The increased application of therapeutic interventional cardiology procedures is associated with increased radiation exposure to physicians, patients and technical personnel. New advances in imaging techniques have the potential for reducing radiation exposure. A progressive scanning video system with a standard vascular phantom has been shown to decrease entrance radiation exposure. The effect of this system on reducing actual radiation exposure to physicians and technicians was assessed from 1984 through 1987. During this time, progressive fluoroscopy was added sequentially to all four adult catheterization laboratories; no changes in shielding procedures were made. During this time, the case load per physician increased by 63% and the number of percutaneous transluminal coronary angioplasty procedures (a high radiation procedure) increased by 244%. Despite these increases in both case load and higher radiation procedures, the average radiation exposure per physician declined by 37%. During the same time, the radiation exposure for technicians decreased by 35%. Pulsed progressive fluoroscopy is effective for reducing radiation exposure to catheterization laboratory physicians and technical staff.
治疗性介入心脏病学程序应用的增加与医生、患者和技术人员所受辐射暴露的增加相关。成像技术的新进展有减少辐射暴露的潜力。已证明一种带有标准血管模型的逐行扫描视频系统可降低入射辐射暴露。从1984年到1987年评估了该系统对减少医生和技术人员实际辐射暴露的效果。在此期间，逐行荧光透视法依次添加到所有四个成人导管插入实验室；屏蔽程序未作改变。在此期间，每位医生的病例数增加了63%，经皮腔内冠状动脉成形术（一种高辐射程序）的数量增加了244%。尽管病例数和高辐射程序都有所增加，但每位医生的平均辐射暴露仍下降了37%。同时，技术人员的辐射暴露减少了35%。脉冲逐行荧光透视法对于减少导管插入实验室医生和技术人员的辐射暴露是有效的。
