Development of a test phantom used for MRI’s quality control / 中国医学装备

ABSTRACT

Objective: Design a test phantom with a full function, simple structure and high accuracy which is used for MRI’s Quality Control. Methods: Through a intensive study in imaging principle of MRI and parameters which effect the image quality ,first come up with the phantom’s performance data, and then determine the technical solutions including the choosing material, processing technology, the machining precision, at last develop a trial set of MRI test phantom using the method of numerical control machining. Make a comparative experiment between this phantom and the similar imported one to analyze the consistency of the results by the two phantoms. Results: The result of all the technical parameters of this phantom is consistent with the result of the imported one. There are some extra test components which the imported phantom doesn’t contain. Some performance data like the low contrast resolution are superior to the imported phantom. Conclusion:This MRI test phantom can satisfy the requirement of the daily quality control work in hospital.