摘要
Abstract
Objective To explore how to detect and evaluate the state of Siemens AG medical diagnostic MRI equipment. Methods According to international standards and relevant industry standards in China, the performance of Siemens AG magnetic resonance imaging equipment was examined and evaluated by using the Victoreen 76-908 phantom. The detection indexes included image uniformity, geometric distortion rate, layer thickness (deviation), spatial linearity or high contrast spatial resolution, aspect ratio and signal to noise ratio. Results The study results showed that the performance of Siemens AG magnetic resonance imaging equipment in our hospital was good, and all the indexes were in accordance with the relevant standards. Image uniformity, geometric distortion rate, thickness deviation, high contrast spatial resolution, aspect ratio, signal to noise ratio were 100%, 96.9%, 96.9%, 97%, 96.9%and 100%, respectively. Conclusion The detection indexes of Siemens AG magnetic resonance imaging equipment in our hospital are in accordance with the relevant standards, and the device can be applicated for clinical use in 2017.关键词
核磁共振成像/检测体模/影像均匀性/信噪比/设备性能Key words
MRI/testing phantom/imaging uniformity/signal to noise ratio/device performance分类
医药卫生
