ABSTRACT
Objective:To study the clinical feasibility and advantages of the RapidPlan module based on Halcyon 2.0 ring medical linear accelerator in the design of volumetric modulated arc therapy (VMAT) plans after cervical cancer surgery.Methods:The data of 98 clinical cervical cancer cases were selected from the database, and VMAT artificial radiotherapy plans were designed based on Halcyon 2.0. Then, the designed plans were imported into the RapidPlan module to train the module for a prediction model with high goodness of fit. Another 20 patients after cervical cancer surgery were selected as the validation set to compare the differences in dosimetry, plan consistency, and plan execution efficiency between the manual plans and RapidPlan automatic plans.Results:The RapidPlan automatic plans could obtain dose distribution of target volume and organs at risk with the same quality as the manual plans. The RapidPlan automatic plans provided slightly inferior protection of the femoral head but superior protection of the spinal cord compared to the manual plans, and the difference was statistically significant ( t = 4.71, P<0.001). The average MU of the RapidPlan automatic plans was 687.46, which was lower than that of the manual plan (815.34), and the difference was statistically significant ( t = 6.09, P < 0.05). The portal dosimetry (PD) verification revealed that the average γ passing rate (1 mm/1%) of the RapidPlan automatic plans was 89.48%and that of the manual plans was 88.22%, and the difference was statistically significant ( t = 3.35, P < 0.05). Conclusion:RapidPlan automatic plans based on the Halcyon 2.0 platform can meet the clinical needs of the VMAT program for cervical cancer and has certain advantages.
ABSTRACT
Objective@#To explore the clinical efficacy of acupuncture combined with three oxygen in the treatment of postherpetic neuralgia.@*Methods@#According to the digital table, 70 patients with neck thoracolumbar sacral postherpetic neuralgia were randomly divided into control group (conventional acupuncture plus oral gabapentin+ Bailemian capsule oral group) and observation group (abdominal acupuncture + floating needle + three oxygen paravertebral injection group), 35 cases in each group.The clinical efficacy, sleep state (SRSS), anxiety state (HAMA) and visual analogue scale (VAS) of the two groups were observed and recorded after treatment.@*Results@#The curative effect of the observation group was significantly better than that of the control group (91.43% vs.65.71%, χ2=6.873, P<0.05), and the SRSS, HAMA and VAS scores after treatment in the observation group were better than those in the control group[SRSS: (17.23±3.36)points vs.(10.79±2.48)points, t=8.472, P<0.05; HAMA: (12.14±2.62)points vs.(8.49±2.77)points, t=7.251, P<0.05; VAS: (3.19±0.98)points vs.(1.87±0.68)points, t=6.919, P<0.05)].@*Conclusion@#Acupuncture combined with three oxygen in the treatment of postherpetic neuralgia has significant curative effect, without toxic and side effects, it has higher clinical practical value.