Scanning skill and quality control in prostate magnetic resonance spectroscopy / 医疗卫生装备

ABSTRACT

Objective To investigate the factors influencing the image quality of prostate magnetic resonance spectroscopy (MRS),and to put forward quality control measures to improve MRS in success ratio and image quality.Methods Totally 1 255 patients with prostate diseases confirmed pathologically from October 2009 to December 2015 had their MRS data analyzed retrospectively.MRS was executed with multi-voxel 3D chemical shift imaging technique,and special-purpose software was involved in for post processing.Re-scanning would be performed in case of baseline clutter,low SNR and etc.Results There were 1 218 patients had MRS executed well in preparedness,positioning,parameters setup,post processing,baseline and chemical shift,one patient underwent unsuccessful MRS due to incorrect bed mode,9 ones due to unstable baseline resulting from unsatisfactory preparedness,26 ones due to unstable baseline resulting from bad shimming and 1 case due to non-standard post processing.Conclusion Prostate SRS depends on patient preparedness,positioning,parameters setup,shimming and post processing.