The Research Value of Functional MRI Imaging in Low Anterior Resection Syndrome
Objective To explore the application value of functional MRI imaging technology in the evaluation of low anterior resection syndrome after anus-preserving surgery for low rectal cancer.Methods 38 patients with low rectal cancer underwent anus-preserving surgery were collected.All patients underwent pelvic functional MRI imaging within the third month after surgery and were scored using the LARS scale.Patients without LARS symptoms were included in the negative group,and patients with mild and severe LARS symptoms were included in the positive group.All patients in the positive group underwent 3D HR-ARM examination within 1 week of the pelvic functional MRI examination.Compare the differences between functional MRI examination in the LARS positive group and the negative group,and analyze the correlation between functional MRI examination and 3D HR-ARM examination in the LARS positive group.Results The PR thickness and EAS thickness of each phase in the LARS positive group were smaller than those in the negative group,and the difference was statistically significant(P＜0.05).Correlation analysis between functional MRI imaging and 3D HR-ARM examination showed that:the H-line length in the resting phase was positively correlated with RAPD,the EAS thickness in the resting phase was positively correlated with MSP,the H-line length in the forceful phase was positively correlated with IRP,the PR thickness of the three phases was positively correlated with HPZ,and the IAS thickness of the levator phase was negatively correlated with IRP and RAPD(P＜0.05).Conclusion Impairment and functional decline of patients'PR and EAS with low rectal cancer are important factors affecting the occurrence of LARS after surgery.Functional MRI imaging can clearly display changes in the anatomical structure of the pelvic floor.Combined with 3D HR-ARM examination,it can comprehensively evaluate and monitor the efficacy of LARS patients.
Functional MRI Imaging3D High Resolution Anorectal ManometryLow Anterior Resection SyndromeLow Rectal CancerPelvic Floor Function
万方数据
维普
