摘要
目的:探讨18FFDGPET/CT对恶性肿瘤放射治疗的影响。方法:对148例恶性肿瘤治疗前行PET/CT扫描,对扫描前后检出病灶进行定性分析,重新确定期别和治疗方法。结果:PET/CT扫描发现恶性或可疑病灶79个,25个病灶排除或修正诊断。52例检出病灶与检查前不符,28例重新分期,12例修正诊断,57例治疗方法发生改变。结论:放射治疗前PET/CT检查,提高诊断准确性和定位的精确性,减少病灶的遗漏,对制定合理有效的治疗方案具有指导价值。
Objective: To assess the clinical performance of a integrated PET/CT system using 18F FDG in patients with malignant tumors and determines the impact of PET/CT on staging and managing patients for radiotherapy. Methods: One hundred and forty-eight consecutive cases of patients with various malignant tumors were analyzed. The Whole-body PET/CT was performed before radiotherapy and the comparison was conducted on a lesion-by-lesion basis. The lesions determined by PET/CT were compared with physical examination and conventional radiography findings. The strategy of radiotherapy before and after PET/CT scanning was compared and the change in the treatment management determined. Results: A total of 79 cases with malignant or equivocal lesions that were not previously detected in the basis of physical examination and conventional radiography were newly found by PET/CT. The diagnoses of 25 malignant lesions were modified because no lesion was found or no FDG concentration was observed on PET/CT imaging. In 28 patients (18.9%) the stage were changed due to PET/CT results. In 57 patients (38.5%) management in radiotherapy were changed due to PET/CT results. In 18 patients (12.2%) radiotherapy was not performed after PET/CT. In 10 patients (6.8%) the intention of radiation treatment (curative/palliative) were changed due to PET/CT results. Correction of radiation dose was made in 17patients (11.5%). Correction of the target volume was made in 28 patients (18.9%). Conclusion: The Whole-body PET/CT performed before radiotherapy increases the accuracy of the diagnosis and the definition of the orientation, and decreases the focus omitted. It is valuable to direct the treatment planning of radiotherapy.
出处
《中国肿瘤临床》
CAS
CSCD
北大核心
2005年第12期670-673,共4页
Chinese Journal of Clinical Oncology
基金
山东省科技厅重大攻关项目基金资助(编号:021130103)