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应用千伏级锥形束CT对宫颈癌调强放疗过程中摆位误差分析 被引量:3

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摘要 目的:应用千伏级锥形束CT(CBCT)分析宫颈癌调强放射治疗过程中的摆位误差。方法随机选取18例宫颈癌患者治疗前行CBCT扫描,每周1次。获得在左右(X)、头脚(Y)、腹背(Z)方向上的误差值。结果在X、Y、Z方向上总体误差分别为(1.64±2.16)mm、(2.92±3.60)mm、(1.57±1.85)mm;摆位误差的绝对值在X方向上94.3%≤5 mm、Y方向上89.8%≤5 mm、Z方向上93.2%≤5 mm。结论采用CBCT技术在宫颈癌调强放射治疗过程中能有效地对摆位误差进行实时验证,并为靶区的外放范围提供参考,从而为临床提供质量保证。
出处 《中国血液流变学杂志》 CAS 2014年第2期342-343,346,共3页 Chinese Journal of Hemorheology
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参考文献5

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