摘要
目的 :将一种放疗用简易固定装置应用于唾液腺显像中,评估其对体位移动的影响。方法 :选取以口干为主诉的女性患者30例,随机分成常规扫描组(n=15例)及简易固定装置辅助扫描组(n=15例),静脉注射99m锝-高锝酸盐。在常规扫描组中,患者使用托架及垫枕行头颈部固定;在简易固定装置辅助扫描组中,使用一种放疗用简易固定装置以固定支撑,控制头颈部移动,然后使用SPECT显像仪行动态唾液腺显像。2位核医学医师对获得的系列动态影像中腮腺向左右侧移动(X轴)及向头端或脚端移动(Y轴)的最大位移进行评估。采用SPSS 16.0软件进行数据分析。结果:在常规扫描组中,腮腺的最大位移为(6.6±4.6)mm(X轴)、(5.2±3.4)mm(Y轴);在简易固定装置辅助扫描组中,腮腺最大位移为(3.2±1.6)mm(X轴)、(3.0±1.3)mm(Y轴);2组间最大位移具有统计学差异(P=0.012,X轴;P=0.027,Y轴)。结论:放疗用简易固定装置在唾液腺显像中具有较好的辅助固定作用,能有效降低动态采集过程中的体位移动,为功能参数计算及结果判断提供良好的数据基础。
Objective To apply a simple fixator to salivary gland scintigraphy to evaluate its effect on body position movement.Methods Totally 30 female patients complaining xerostomia were randomly and equally divided into a conventional scan group and a simple fixator group,who were injected with Technetium Tc-99m Pertechnetate intravenously.In the conventional scan group the patients had their necks fixed with the bracket and cushion,while in the other group the fixation was executed with the single fixator.SPECT imager was used for dynamic salivary gland scintigraphy,and two nuclear medicine physicians evaluated the maximum shift of the parotid gland along left-right(X)and head-foot(Y)axes in series of dynamic images.SPSS 16.0 software was used for data analysis.Results In the conventional scan group the maximum shift was(6.6±4.6)mm at X axis and(5.2±3.4)mm at Y axis;in the single fixator group the maximum shift was(3.2±1.6)mm at X axis and(3.0±1.3)mm at Y axis.There were significant differences between the maximum shifts in the two groups(P=0.012,X axis;P=0.027,Y axis).Conclusion The single fixator assists in salivary gland scintigraphy,and alleviates the body position movement during dynamic acquisition and provides data support for functional parameter calculation and result determination.
作者
孙志勇
咸婧
王庆旭
孟宪
黄叶
吴瑕
陈建中
SUN Zhi-yong;XIAN Jing;WANG Qing-xu;MENG Xian;HUANG Ye;HUANG Ye;CHEN Jian-zhong(Department of Nuclear Medicine,General Hospital of Chengdu Military Area Command,Chengdu 610083,China;Department of Radiotherapy,General Hospital of Chengdu Military Area Command,Chengdu 610083,China)
出处
《医疗卫生装备》
CAS
2018年第4期67-70,共4页
Chinese Medical Equipment Journal
关键词
放疗用简易固定装置
唾液腺显像
动态影像
体位移动
SPECT显像
体位校正
simple fixator for radiotherapy
salivary scintigraphy
dynamic imaging
body position shift
single-photon emission computed-tomography
body position correction
