TY - JOUR
T1 - Multicenter Study on Evaluation of the Entrance Skin Dose by a Direct Measurement Method in Cardiac Interventional Procedures
AU - Kato, Mamoru
AU - Chida, Koichi
AU - Moritake, Takashi
AU - Koguchi, Yasuhiro
AU - Kaga, Yuji
AU - Sakamoto, Hajime
AU - Tsukamoto, Atsuko
AU - Kawauchi, Satoru
AU - Matsumoto, Kazuma
AU - Matsumura, Mitsuaki
AU - Oosaka, Hajime
AU - Toyoshima, Hideto
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Deterministic effects have been reported in cardiac interventional procedures. To prevent radiation skin injuries in percutaneous coronary intervention (PCI), it is necessary to measure accurate patient entrance skin dose (ESD) and maximum skin absorbed dose (MSD). We measured the MSD on 62 patients in four facilities by using the Chest-RADIREC(Ⓡ) system. The correlation between MSD and fluoroscopic time, dose area product (DAP), and cumulative air kerma (AK) showed good results, with the correlation between MSD and AK being the strongest. The regression lines using MSD as an outcome value (y) and AK as predictor variables (x) was y=1.18x (R(2)=0.787). From the linear regression equation, MSD is estimated to be about 1.18 times that of AK in real time. The Japan diagnostic reference levels (DRLs) 2015 for IVR was established by the use of dose rates using acrylic plates (20- cm thick) at the interventional reference point. Preliminary reference levels proposed by International Atomic Energy Agency (IAEA) were provided using DAP. In this study, AK showed good correlation most of all. Hence we think that Japanese DRLs for IVR should reconsider by clinical patients' exposure dose such as AK.
AB - Deterministic effects have been reported in cardiac interventional procedures. To prevent radiation skin injuries in percutaneous coronary intervention (PCI), it is necessary to measure accurate patient entrance skin dose (ESD) and maximum skin absorbed dose (MSD). We measured the MSD on 62 patients in four facilities by using the Chest-RADIREC(Ⓡ) system. The correlation between MSD and fluoroscopic time, dose area product (DAP), and cumulative air kerma (AK) showed good results, with the correlation between MSD and AK being the strongest. The regression lines using MSD as an outcome value (y) and AK as predictor variables (x) was y=1.18x (R(2)=0.787). From the linear regression equation, MSD is estimated to be about 1.18 times that of AK in real time. The Japan diagnostic reference levels (DRLs) 2015 for IVR was established by the use of dose rates using acrylic plates (20- cm thick) at the interventional reference point. Preliminary reference levels proposed by International Atomic Energy Agency (IAEA) were provided using DAP. In this study, AK showed good correlation most of all. Hence we think that Japanese DRLs for IVR should reconsider by clinical patients' exposure dose such as AK.
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U2 - 10.6009/jjrt.2016_JSRT_72.1.73
DO - 10.6009/jjrt.2016_JSRT_72.1.73
M3 - Article
C2 - 26796936
AN - SCOPUS:84989803802
VL - 72
SP - 73
EP - 81
JO - Nihon Hoshasen Gijutsu Gakkai zasshi
JF - Nihon Hoshasen Gijutsu Gakkai zasshi
SN - 0369-4305
IS - 1
ER -