| WEI Wen-zhou,ZHU Gong-sheng,ZENG Ling-yan.Experimental study of abdominal CT scanning exposal doses adjusted on the basis of pediatric abdominal perimeter[J].Chinese Journal of Radiological Medicine and Protection,2006,26(3):291-293 |
| Experimental study of abdominal CT scanning exposal doses adjusted on the basis of pediatric abdominal perimeter |
| Received:August 29, 2005 |
| DOI： |
| KeyWords:Abdominal X-ray Computed Tomography(CT) Exposure |
| FundProject:湖北省科技厅科技攻关计划基金资助项目(301130635) |
| Author Name | Affiliation | E-mail | | WEI Wen-zhou | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | weiwenzhou8@msn.com | | ZHU Gong-sheng | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | | | ZENG Ling-yan | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | | | 殷响林 | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | | | 杨福文 | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | | | 刘昌盛 | Department of Radiology, Remin Hospital of Wuhan University, Wuhan 430060, China | |
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| Abstract:: |
| Objective To optimize the abdominal helical CT scanning parameters in pediatric patients and to reduce its radiation hazards. Methods 60 canines were evenly grouped into 4 groups on the basis of pediatric abdominal perimeter, scanned with 110,150,190 and 240 mAs, and their qualities of canine CT images were analyzed. 120 pediafric patients with clinic suspected abdominal diseases were divided into 4 groups on the basis of abdominal perimeter,scanned by optimal parameters and their image qualities were analyzed. Results After CT exposure were reduced, the percentages of total A and B were 90.9% and 92.0% in experimental canines and in pediatric patients, respectively. Compared with conventional CT scanning,the exposure and single slice CT dose index weighted(CTDIw) were reduced to 45.8%-79.17%. Conclusion By adjusted the pediatric helical CT parameters basedon the of pediatric abdominal perimeter,exposure of patient to the hazards of radiation is reduced. |
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