Scattered Radiation and Ceiling-Suspended Lead Screen Shielding Efficacy during Coronary Angiography

• 作 者: ziman chen meiping huang
• 机 构: Department of Cardiac catheterization lab, Guangdong Cardiovascular institute, Guangdong Provincial
• 出 处: 中华放射学学术大会2016、中华医学会第23次全国放射学学术大会暨中华医学会第24次全国影像技术学术大会
• 发表日期: 2016年5期
• 关键词: Scattered radiation radiation protection coronary angiography real-time dosimetr

　　Objective To assess scattered radiation during coronary angiography(CA)and radiation protection efficacy of a ceilingsuspended lead screen using real-time dosimetry.Methods In a catheterization lab,an anthropomorphic phantom was placed under the X-ray beam to simulate patient attenuation.Eight CA projections i.e.left anterior oblique(LAO)45°,right anterior oblique(RAO)30°,cranial 25°,caudal 25°,LAO 45°/cranial 25°,LAO 45°/caudal 25°,RAO 30°/cranial 25° and RAO 30°/caudal 25°were applied to measure scattered radiation to the primary operator(PO)and the assistant using real-time dosimeters.Thereafter,a ceiling-suspended lead screen was positioned closely to the phantom,at left lateral and closely to the PO to compare radiation protection efficacy.