摘要
目的探讨18F-FDG PET/CT对单一椎体骨挫伤的诊断价值。方法回顾性分析30例单一椎体骨挫伤的PET/CT表现,标准摄取值(SUV)>2.5定为放射性摄取增高,并对比MRI图像,分析其对椎体骨挫伤的诊断准确率。随访时间为6~24个月。结果有完整资料的30例单一椎体骨挫伤患者,X线平片或CT片未能检出异常,MRI诊断骨挫伤12例(40﹪),其余18例均诊断为转移瘤。18F-FDG PET/CT诊断椎体骨挫伤30例,共计30个椎体,均为单一椎体,以胸腰段椎体为主。PET/CT和MRI病灶检出率相同,均为100﹪,定性诊断准确率分别为100﹪和40﹪,二者定性诊断比较有统计学意义(χ2=17.14,P<0.05)。结论 PET/CT对单一椎体骨挫伤的诊断明显优于MRI,能为临床诊治提供更准确的影像信息。
Objective The aim of this study was to describe the role of 18F-FDG PET/CT in the diagonosis of a single vertebral body bone contusion. Methods We retrospectively analyzed 30 18F-FDG PET/CT imaging and MRI studies of patients with bone contusion in a single vertebral body to evaluate the coincidence rate for diagnosis of contusion in a single vertebral body bone. We defined SUV 〉 2.5 as increased radioactivity uptake and 6 - 24 months as follow-up period. Results We considered 30 consecutive patients with bone contusion in a singel vertebral body bone. The Conventional radiological methods were negative in all the patients,whereas MRI detected the bone contusion in 12 patients（40 %） the metastatic tumor in 18 patients.By contrast, 18F-FDG PET/CT detected the bone contusion in a single vertebral body bone in all of the 30 patients, most of the bone contusion occured in thoracic lumbar vertebral body. The sensitivity of PET/CT and MRI in detecting the disease was the same.However, the diagnostic accuracy was 100 % and 40 % respectively, the difference of accuracy was statistically significant. （χ2 =17.14, P 〈 0.05）. Conclusion PET/CT proved superior to MRI in detecting bone contusion and it can provid more accurate imaging information to clinical mangement.
出处
《功能与分子医学影像学（电子版）》
2014年第1期15-18,共4页
Functional and Molecular Medical Imaging(Electronic Edition)
