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减少SPECT的探测效率、电子学、机械性能漂移对采集图像的影响,确保它具有良好的运行质量。结合整机内系统质控软件的要求,自制相应的校正模型,进行硬件和软件调整。硬件调整包括能量和位置信号输出幅度的校正;软件校正包括多窗配准度、线性、旋转中心、能量、均匀性、全身运动的校正。结果:所有的信号输出幅度或校正系数均符合维护设备正常运行的要求,采集图像的质量得到明显的改善。说明坚持日常的SPECT质量控制工作,有助于维护它最佳的运行质量,提高诊断的准确性。
Reduce the impact of SPECT detection efficiency, electronics, and mechanical performance drift on captured images to ensure that it has good operational quality. Combine the requirements of the system’s internal control software, make a corresponding correction model, and perform hardware and software adjustments. Hardware adjustments include corrections of energy and position signal output amplitude; software corrections include multi-window registration, linearity, center of rotation, energy, uniformity, and body motion correction. Result: All signal output amplitudes or correction coefficients are in line with the requirements for the normal operation of the maintenance equipment, and the quality of the acquired images is significantly improved. Explain that insisting on daily SPECT quality control work helps to maintain its best operating quality and improve the accuracy of diagnosis.