摘要
目的:在现有检测标准和检测方法基础上,针对检测实践中出现的问题,研究3.0T磁共振图像均匀度及层厚的检测方法。方法:根据相关国际和国内标准,对新装机的3.0T磁共振进行检测,采用不同的扫描序列进行扫描,通过大量的实验数据对测量结果进行分析,总结出行之有效的检测方法。结果:不同的扫描序列对测量结果影响很大,检测时必须选择正确的序列。结论:在检测3.0T等高场强磁共振时,应选择对各个通道的增益进行校准的扫描序列。
Objective： Based on the existing test standards and test methods,aiming at the questions occurred in practice,to study the test methods for 3.0T MRI image uniformity and slice thickness. Methods： According to the NEMA. MS5 and YY/T 0482-2010 standards, tested the 3.0T MRI system installed recently, utilized different scanning sequences, analyzed the results by the large experimental data, summing up an effective test methods. Results： To have an profound influence on test results for different scanning sequences, the correct sequences chosen is necessary. Conclusion： It should choose the scanning sequences calibrated for gains of all channels when testing the 3.0T MRI system.
出处
《中国医学装备》
2015年第3期12-15,共4页
China Medical Equipment
基金
军事医学计量科研专项(2011-JL3-016)"军队大型医疗设备远程监督管理系统研究"
关键词
磁共振
均匀度
层厚
Magnetic resonance imaging
Image uniformity
Slice thickness
