| CHEN Sheng-li,ZHU Dong-liang,CHEN Guo-dong,et al.Estimate of X-radiation to patients during transhepatic artery chemoembolization for heptocarcinoma[J].Chinese Journal of Radiological Medicine and Protection,2004,24(5):472-474 |
| Estimate of X-radiation to patients during transhepatic artery chemoembolization for heptocarcinoma |
| Received:September 23, 2003 |
| DOI： |
| KeyWords:X-ray radiation Hepatocarcinoma Chemoembolization |
| FundProject: |
| Author Name | Affiliation | E-mail | | CHEN Sheng-li | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | csl@cha.163.com | | ZHU Dong-liang | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | | | CHEN Guo-dong | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | | | 邹蓉珠 | 广州市疾病预防控制中心 | | | 黄齐好 | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | | | 黄子诚 | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | | | 谢琦 | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | | | 慕容爱 | Department of Radiology, The First Municipal People's Hospital of Guangzhou 510180, China | |
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| Abstract:: |
| Objective To evaluate the X- radiation to patients of hepatocarcinoma during transhepatic artery chemoembolization(THACE). Methods The radiation dose was measured in 82 patients(group A) during THACE for hepatocarcinoma.Measurements were carried out using a dosimeter system(Diamentor K1 and Diamentor ED) equipped in DSA setting Angiostar-Plus(Siemens,Germany),dose-area product(DAP) and entrance surface dose(ESD) were recorded on-line,and the effect dose(ED) was estimated by Monte-Carlo conversion coefficient from DAP.The effects of elevated tube voltage,reduced pulsed fluoroscopy(PF) frequency and curtailed total photography frames on radiation to the patients were studied by comparison with another 10 THACE cases treated recently(group B). Results In group A,the mean fluoroscopic time was (35.3±21.1) minutes,and the mean number of angiographic exposure was (234±108) frames,the mean DAP dose was((21 748±)(12 424)) cGy/cm2,and the mean ESD was (964±632)mGy,ED was (34.8±19.9)mSv.The contribution of pulsed fluoroscopy(PF) dose to the total DAP(24.0±12.7)% was smaller than photography(R)(75.9±10.7)%,and of PF to total ESD(49.8±14.9)% was similar to R (51.7±14.2)%.The total dose,fluoroscopy dose per minute and photography dose per frame in group B was reduced obviously than in group A. Conclusion The HCC patients suffered a large dose of X-ray exposure in THACE procedure.The radiation exposure of patients can be reduced by elevating tube voltage,reducing pulsed fluoroscopy frequency and curtailing total photography frames moderately. |
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