Space resolution was mainly affected by field of view ( FOV ) and Matrix ;

扫描野（FOV）、矩阵（Matrix）主要影响空间分辨率；

Measured the serun MEGX FOV evaluate the liver function reservation and the risk of operation

检测MEGX判定肝储备功能评估手术风险

a series of adjustment screws were borrowed to realize the FOV match and focus match ;

用调节螺钉实现视场匹配与聚焦匹配；

The SIR increased with Fov , flip angle , matrix , angle of slice position .

结果：随着翻转角、视野、矩阵、层面定位角度的增大，SIR值增大。

FOV , and decreased with matrix , pitch and thickness of scanned objective .

随着扫描物体厚度、重建矩阵、螺距增大而降低；