扫描优化对消除高磁场MRI伪影的效果研究

目的:探讨消除MRI伪影的各种手段。方法:原始组选择我院MR扫描仪伪影出现比较频繁的检查患者2000例,改进组为经过工程师和技师多方面分析问题后,采取适当抑制伪影措施后的检查患者2000例。结果:原始组伪影例数比例为18.45%,改进组伪影例数比例为4%,后者明显低于前者。结论:通过对二组病例研究,我们了解了伪影产生的原因及比较有效的消除手段。

The Effect Research of Scanning Optimization Eliminates the High Magnetic Field MRI Artifacts

Objective: The discussion about eliminates the MRI artifacts through some method. Method: The primitive group chooses 2000 patient when my hospital MR scanner artifacts appear quite frequent, the improvement group chooses 2000 patient after through engineer and technician multi-analysis question, adopts suitably suppresses the artifacts method. Results: The primitive group artifacts example number proportion is 18.45%, the improvement group artifacts example number proportion is 4%, obviously latter is lower than former. Conclusion: Through studies the two groups of case of illness, we had understood the produces reason of artifacts, and effective elimination method.