Cone-beam CT-guided Study of the Effect of Cultural Differences on Treatment Accuracy in Cervical Cancer Radiation Therapy
Objective Cone beam CT was used to study the differences of cultural differences on radiation therapy for cervical cancer patients to provide a basis for individualized clinical treatment.Methods Two hundred and eight cervical cancer patients,88 with high school education or above in the study group and 120 with less than high school education in the control group,were selected and all were fixed using thermoplastic body molds and homemade assistive devices.CBCT scans were performed and matched online before radiotherapy to derive positional errors in x,y,and z directions,which were reviewed by two qualified clinicians to confirm that they were correct and recorded accordingly;the size of the bladder and the diameter of the rectum were also measured and recorded.The t-test was used for comparison between the two groups.Results 1.Comparison of errors:The positional errors of the study group were x(1.56±1.21),y(1.65±1.24),and z(1.46±1.01)mm in the left and right,up and down,and anterior and posterior directions,respectively;those of the control group were x(1.96±1.39),y(2.20±1.91),and z(2.10±1.02)mm,respectively;the comparison between the two groups was statistically significant in the y-axis,and z-axis were statistically significant.2.Range of bladder urine volume variation:the study group was more stable.3.Bowel preparation:the study group was better than the control group in each bowel preparation.Conclusion Treatment accuracy,consistency of bladder filling and consistency of bowel preparation were better in patients with high education than in patients with low education.It is recommended that clinicians and therapists should be patient with rural or low-education patients and give meticulous and repeated preaching until patients and families fully understand and actively cooperate with treatment.
Cone-beam CTThe Cultural DifferencesCervix CancerBladder VolumeSetup Errors
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