不同甲状腺扫描终止参数对甲状腺摄锝率的影响

发布时间：2018-02-07 15:35

本文关键词： 甲状腺放射性核素显像摄锝率　出处：《中国医学影像技术》2015年06期 　论文类型：期刊论文

【摘要】：目的比较甲状腺静态扫描采用计时和计数两种不同扫描终止参数对SPECT/CT甲状腺摄锝率的影响。方法随机抽取60例甲状腺摄锝功能检查的患者,根据SPECT系统中摄锝功能检查程序进行满针计数、甲状腺静态扫描、空针计数采集。其中甲状腺静态扫描均采集计数组、计时组两组数据,计数组采用常规甲状腺扫描的定计数采集,采集300k,约2~6min;计时组采用系统程序扫描时间,定时为10min;根据摄锝率大小分为摄锝功能正常、摄锝功能增强、摄锝功能减弱3组分别进行比较。结果摄锝功能正常组(18例)中计数组平均摄锝率(1.22±0.66)%,计时组为(1.23±0.66)%;摄锝功能增强组(30例)中计数组平均摄锝率(13.72±4.85)%,计时组为(13.72±4.86)%;摄锝功能减弱组(12例)中计数组平均摄锝率(0.12±0.01)%,计时组为(0.09±0.01)%;以上三组摄锝率对比差异均无统计学意义(P均0.05)。结论甲状腺摄锝功能检查中采集300k计数时间和采集10min时间这两种不同显像终止时间测得的甲状腺摄锝率大小无明显差别。采用计数扫描法可明显缩短扫描时间。
[Abstract]:Objective to compare the thyroid static scan timing and counting two different scanning parameters on SPECT/CT effect of termination of thyroid uptake rate technetium. Methods 60 cases of thyroid uptake function of patients, according to the SPECT system in the uptake function inspection procedures to full needle count, thyroid static scan, empty needle count collection. The thyroid static scan acquisition timing meter array, two groups of data, the count count group acquisition, routine thyroid scan acquisition 300K, about 2~6min; timing group using the system program scan time, timing for 10min; according to the uptake rate into the uptake function of normal uptake function, enhanced uptake function decreased 3 groups were compared. Results the uptake function of the normal group (18 cases) in terms of the average uptake rate of the array (1.22 + 0.66)%, timing group (1.23 + 0.66)%; the uptake function enhancement group (30 cases) in terms of the average uptake rate (array 13.72 + 4.85)%, timing group (13.72 + 4.86)%; the uptake function group (12 cases) in terms of the average uptake rate of the array (0.12 + 0.01)%, timing group (0.09 + 0.01)%; the above three groups of contrast uptake rate showed no significant difference (P < 0.05). Conclusion thyroid uptake function of the two different imaging time of termination of the measured thyroid uptake rate showed no significant difference between 300K and 10min acquisition time counting time acquisition examination. By counting scanning method can shorten the scan time.

【作者单位】：福建医科大学附属宁德市医院核医学科;
【分类号】：R817.4

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