Measurements and analysis the peak skin dose of patients received coronary angiography
Wang Bin
Gao Linfeng
Qian Aijun
Yao Jie
Xiao Hong
Jiang Zhou
Abstract：Objective To measure the peak skin dose (PSD) of patients received coronary angiography (CA). Methods Thermoluminescence dose (TLD) and Gaf Chromic XR - RV3 film were used to monitor the intraoperative peak skin dose. thermoluminescence dose or film were fixed under the table. The kV, mA, exposure time, cumulative dose (CD) and dose-area product (DAP) of the interventional procedure were recorded. Samples were collected postoperatively and the results were measured and analyzed using a thermoluminescence dose measurement system and film analysis software. Multiple linear regression analysis was performed on the relevant variables. Results A total of 51 patients undergoing CA surgery were monitored. The longest exposure time was 23.5 minutes. The cumulative dose at the interventional reference point was 1059 mGy. The dose area product was 22.9 Gy·cm2. The PSD monitored by the film method was 1.23 Gy, and the PSD monitored by the TLD method was 0.51 Gy. The PSD of both methods was related to DAP (R2=0.861, 0.777, P<0.01), and there was a significant difference between the film method and thermoluminescence dose (P<0.01). Conclusions Coronary artery angiography has a certain degree of skin damage. Thermoluminescence dose measurement underestimates the actual exposure dose. It should be combined with other auxiliary methods to monitor the skin dose of the patient, and promote the clinical to provide patients with a safer and more appropriate treatment.
Keywords：Peak skin doseRadio chromic filmThermoluminescence doseCoronary angiography
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 601-603 )