Effect of Vacuum Negative Pressure Pad Combined with Thermoplastic Body Membrane in Radiotherapy of Thoracic and Abdominal Tumors
Objective To observe the effect of vacuum negative pressure pad combined with thermoplastic body membrane in radiotherapy of thoracic and abdominal tumors.Methods A total of 80 thoracic and abdominal patients who received radiotherapy in hospital from January 2022 to January 2024 were selected and divided into observation group and control group according to lottery method,with 40 cases in each group.The observation group was fixed with vacuum negative pressure pad combined with thermoplastic body film technology,and the control group was fixed with thermoplastic body film technology.The positioning errors of left and right(X axis),up and down(Y axis),front and back(Z axis)direction and the positioning time of the two groups were compared.Results The positioning errors in the left and right(X axis),up and down(Y axis)and front and back(Z axis)directions in the observation group were smaller than those in the control group,and the difference was statistically significant(P<0.05).The positioning time of the observation group was shorter than that of the control group,and the difference was statistically significant(P<0.05).Conclusion Vaoum negative pressure combined with thermoplastic body membrane pad fixation technique can reduce the positioning error and shorten the positioning time for radiotherapy of thoracic and abdominal tumors.
Thermoplastic filmVacuum negative pressure padPositioning errorPositioning time