Effects of optimized patient-centered workflow on patient's comfort and image registration accuracy in PET/MR examina-tions
Objective To investigate the effect of workflow optimization on patient comfort and image registration accuracy of PET/MR.Methods A total of 192 patients with suspected tumor or tumor stage admitted to Zhongshan Hospital Affiliated to Fudan Univer-sity from April 2019 to April 2020 were selected as the study objects.Patients were divided into group A(n =62),group B(n =35)and group C(n =95)according to different workflows.Group A adopted the conventional workflow,and the patient took the horizontal position.Group B adopted conventional workflow,patients used waist pad and knee pad at the same time.Group C uses an optimized workflow.The comfort scores,image quality scores and image registration accuracy of the three groups were recorded and compared.Results The comfort scores of group A and group B were lower than those of group C,and the differences were statistically significant(P<0.05).There was no significant difference in the quality scores of whole body PET image,whole body MR image,abdominal PET image and abdominal MR image among 3 groups(P>0.05).In the whole-body sequence images,the registration accuracy of patients in group A was lower than that in group C,and the difference was statistically significant(P<0.05).In the abdominal sequence ima-ges,the registration accuracy of patients in group A and group B was lower than that in group C,and the differences were statistically significant(P<0.05).Conclusion Optimizing workflow canimprovepatientcomfortandimageregistrationaccuracyin PET/MRex-amination.
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