Conclusion: the ultrasound is a useful tool for the diagnosis of superficial tumors and the evaluation of efficacy of the heavy particle beam therapy.
结论：超声检查对诊断浅表肿瘤及评价重离子治疗的效果具有重要的参考价值。
2
Objective To summarize the effect of radioactive particle implantation in brachytherapy for different kinds of tumors in 8 hospital, and explore the feasibility of the therapy.
目的总结8家医院对放射性粒子近距离治疗各种肿瘤的疗效，探索其治疗肿瘤的可行性。
3
Objective To assess the efficacy of particle repositioning maneuver (PRM) therapy for posterior semicircular canal benign paroxysmal positional vertigo (PC-BPPV).