低龄小儿体部64排CT低剂量扫描的探讨

【目的】 通过动物模拟相应体质量低龄小儿,初步摸索出CT扫描显示其正常解剖结构的最低管电流,再应用于临床,避免研究中对小儿造成过度辐射65377; 【方法】 用10 ~ 12 kg比格犬和18 ~ 23 kg幼猪模拟 < 16 kg和16 ~ 25 kg两组低龄小儿65377;先行预扫描,初步确定最低管电流值后进行实验65377;双盲法评价图像质量65377;以常规剂量扫描所获图像为基础片,从①图像伪影;②质地(噪声);③组织结构的显示;④扫描脏器与周围组织的对比四个方面评价65377;评价结果进行多次配对设计两样本的卡方检验65377;得到的数据经临床随机抽取的患儿各组30例行CT扫描...

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Published inZhongshan da xue xue bao. Zhongshan daxue xuebao yixue kexue ban = Journal of Sun Yat-sen University. Yi xue ke xue ban Vol. 30
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Sun Yat-sen University 01.01.2009
Subjects
X线计算机
低剂量
儿童
断层摄影术
辐射
Online AccessGet full text
ISSN1672-3554
DOI10.3321/j.issn:1672-3554.2009.03.010

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Abstract 【目的】 通过动物模拟相应体质量低龄小儿,初步摸索出CT扫描显示其正常解剖结构的最低管电流,再应用于临床,避免研究中对小儿造成过度辐射65377; 【方法】 用10 ~ 12 kg比格犬和18 ~ 23 kg幼猪模拟 < 16 kg和16 ~ 25 kg两组低龄小儿65377;先行预扫描,初步确定最低管电流值后进行实验65377;双盲法评价图像质量65377;以常规剂量扫描所获图像为基础片,从①图像伪影;②质地(噪声);③组织结构的显示;④扫描脏器与周围组织的对比四个方面评价65377;评价结果进行多次配对设计两样本的卡方检验65377;得到的数据经临床随机抽取的患儿各组30例行CT扫描以验证65377; 【结果】 最终获得低龄小儿64排CT低剂量扫描的最低管电流值: < 16 kg者胸部为10 mA65380;上腹部40 mA65380;中下腹部30 mA; 16 ~ 25 kg胸部为20 mA65380;上腹部50 mA65380;中下腹部40 mA65377; 【结论】 64排CT低剂量扫描可获得符合临床诊断需求的图像信息,因而能应用于临床65377;
AbstractList 【目的】 通过动物模拟相应体质量低龄小儿,初步摸索出CT扫描显示其正常解剖结构的最低管电流,再应用于临床,避免研究中对小儿造成过度辐射65377; 【方法】 用10 ~ 12 kg比格犬和18 ~ 23 kg幼猪模拟 < 16 kg和16 ~ 25 kg两组低龄小儿65377;先行预扫描,初步确定最低管电流值后进行实验65377;双盲法评价图像质量65377;以常规剂量扫描所获图像为基础片,从①图像伪影;②质地(噪声);③组织结构的显示;④扫描脏器与周围组织的对比四个方面评价65377;评价结果进行多次配对设计两样本的卡方检验65377;得到的数据经临床随机抽取的患儿各组30例行CT扫描以验证65377; 【结果】 最终获得低龄小儿64排CT低剂量扫描的最低管电流值: < 16 kg者胸部为10 mA65380;上腹部40 mA65380;中下腹部30 mA; 16 ~ 25 kg胸部为20 mA65380;上腹部50 mA65380;中下腹部40 mA65377; 【结论】 64排CT低剂量扫描可获得符合临床诊断需求的图像信息,因而能应用于临床65377;
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Snippet 【目的】 通过动物模拟相应体质量低龄小儿,初步摸索出CT扫描显示其正常解剖结构的最低管电流,再应用于临床,避免研究中对小儿造成过度辐射65377; 【方法】 用10 ~ 12 kg比格犬...
SourceID doaj
SourceType Open Website
SubjectTerms X线计算机
低剂量
儿童
断层摄影术
辐射
Title 低龄小儿体部64排CT低剂量扫描的探讨
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Volume 30
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