Objective:To assess the changes of cost,operation and clinical efficacy of large-scale equipment of hospital under the background of the Diagnosis-Related Groups(DRG)payment of disease,so as to provide evidences for finely managing the benefit of equipment.Methods:Full-scale operating data of four large-scale medical equipment that were used in Sichuan Cancer Hospital during January 2023 and December 2024 were selected.The payment of using equipment during January and December 2023 adopted the payment method as item,which included the case data of 21743 patients.The payment of using equipment during January and December 2024 adopted the payment method as DRG payment,which included the case data of 31187 patients.The input-oriented Charnes-Cooper-Rhodes(CCR)-data envelopment analysis(DEA)was adopted to judge the efficiency,the instant effect and trend effect of the separated net-income by interrupted time series(ITS).The incremental cost-effectiveness ratio(ICER)was used to assess the economic value of increasing diagnostic concordance.Results:The average monthly detection amount of 4 large-scale medical equipment of adopting DRG payment method was(2 218±297)cases,which was more than(2 113±311)cases of adopting payment method as item,and the difference was significant(t=3.07,P<0.05).The average monthly reexamination rate was(4.4±1.0)%,which was lower than(6.2±1.1)%of payment method as item,and the difference was significant(t=3.90,P<0.05).After the DRG payment method was implemented,the mean of CCR efficiency of equipment increased 0.09-0.13,and the intercept of monthly net income increased 5.60 million CNY,and the subsequent slope increased 0.245 million CNY again in each month.The ICER increased accuracy rate of 0.115 million CNY/1%,and the acceptable probability was large than 60%at economic aspect when the willingness of payment was larger or equal to 0.2 million CNY.Conclusions:DRG payment method can effectively decrease re-examination rate,and increase diagnostic consistence and CCR efficiency,and enhance net benefit and return on investment(ROI).However,the difference of efficiency among equipment still exists,and the enhancement of utilization rate of the part of equipment is limited.Therefore,the grouping weight and performance incentive should be improved,and the utilization rate of the resource of large-scale medical equipment should be further enhanced.

Objective:To assess the changes of cost,operation and clinical efficacy of large-scale equipment of hospital under the background of the Diagnosis-Related Groups(DRG)payment of disease,so as to provide evidences for finely managing the benefit of equipment.Methods:Full-scale operating data of four large-scale medical equipment that were used in Sichuan Cancer Hospital during January 2023 and December 2024 were selected.The payment of using equipment during January and December 2023 adopted the payment method as item,which included the case data of 21743 patients.The payment of using equipment during January and December 2024 adopted the payment method as DRG payment,which included the case data of 31187 patients.The input-oriented Charnes-Cooper-Rhodes(CCR)-data envelopment analysis(DEA)was adopted to judge the efficiency,the instant effect and trend effect of the separated net-income by interrupted time series(ITS).The incremental cost-effectiveness ratio(ICER)was used to assess the economic value of increasing diagnostic concordance.Results:The average monthly detection amount of 4 large-scale medical equipment of adopting DRG payment method was(2 218±297)cases,which was more than(2 113±311)cases of adopting payment method as item,and the difference was significant(t=3.07,P<0.05).The average monthly reexamination rate was(4.4±1.0)%,which was lower than(6.2±1.1)%of payment method as item,and the difference was significant(t=3.90,P<0.05).After the DRG payment method was implemented,the mean of CCR efficiency of equipment increased 0.09-0.13,and the intercept of monthly net income increased 5.60 million CNY,and the subsequent slope increased 0.245 million CNY again in each month.The ICER increased accuracy rate of 0.115 million CNY/1%,and the acceptable probability was large than 60%at economic aspect when the willingness of payment was larger or equal to 0.2 million CNY.Conclusions:DRG payment method can effectively decrease re-examination rate,and increase diagnostic consistence and CCR efficiency,and enhance net benefit and return on investment(ROI).However,the difference of efficiency among equipment still exists,and the enhancement of utilization rate of the part of equipment is limited.Therefore,the grouping weight and performance incentive should be improved,and the utilization rate of the resource of large-scale medical equipment should be further enhanced.