McVeigh E R, Bronskill M J, Henkelman R M
Med Phys. 1986 Nov-Dec;13(6):806-14. doi: 10.1118/1.595967.
Receiver coil response is a major cause of nonuniformities in magnetic resonance images. The spatial dependence of the sensitivity and phase of single-saddle receiver coils has been investigated quantitatively by calculating the H1 field and comparing the results with measurements of a uniform phantom. Agreement between the measurements and calculations is excellent. A method is developed which corrects for both the nonuniform sensitivity and the phase shifts introduced by receiver coils.
接收线圈响应是磁共振图像不均匀性的主要原因。通过计算H1场并将结果与均匀体模的测量值进行比较，定量研究了单鞍形接收线圈灵敏度和相位的空间依赖性。测量值与计算值之间的一致性非常好。开发了一种方法，可校正接收线圈引入的不均匀灵敏度和相移。
