摘要
目的比较能谱CT与超声监测骨搬移过程的价值。方法对18例接受骨搬移术患者分别在术后第2、4、6、8周行能谱CT及超声检查,观察外侧骨痂搭建情况、髓腔内骨痂形成情况、机化血肿范围及液性囊泡区性质,测量骨延长区及机化血肿范围长度,同时记录能谱CT扫描辐射剂量。结果术后第2～8周CT和超声均可观察到原始骨痂搭建,第8周时超声已不能区分新生骨痂及骨皮质。术后第2～8周CT和超声均可观察机化血肿范围及髓腔内骨痂随时间延长而增多,术后第2、4周CT和超声测得机化血肿范围长度和骨延长区长度差异均无统计学意义(P均>0.05),术后第6周2种方法测量机化血肿范围长度和骨延长区长度差异均有统计学意义(P均<0.01),术后第8周超声不能测得机化血肿和骨延长区长度。超声与CT对液性囊泡检出率分别为16.67%(3/18)、5.56%(1/18),差异无统计学意义(P>0.05),根据CT能谱曲线斜率可鉴别液性囊泡性质。能谱CT有效辐射剂量为(0.71±0.71)mSv。结论能谱CT和超声在监测骨搬移过程再生组织形成情况各有优势;能谱技术可作为一种新的监测手段。
Objective To compare monitoring value of energy spectrum CT and ultrasound in bone transport process. Methods Eighteen patients who underwent bone transport were examined with energy spectrum CT and ultrasonography at the 2nd,4th,6th week and 8th week after surgery,and the construction of lateral callus,the formation of callus in the intramedullary cavity,the range of organized hematoma and the nature of the vesicular area were observed,the length of bone extension area and organized hematoma were measured.The radiation dose of energy spectrum CT scan was also calculated. Results Primary callus structures were observed on CT and ultrasound at the 2nd to 8th week after surgery,and the callus and cortical bone could not be distinguished by ultrasound at the 8th weeks.At the 2nd to 8th week after surgery,both CT and ultrasound could observe the range of organized hematoma and the increased quantity of callus in the intramedullary cavity.There was no statistically significant difference of the length of systemic hematoma nor bone extension area measured with CT and ultrasound at the 2nd and 4th week after surgery (all P >0.05),while significant difference was detected in the length of systemic hematoma and bone extension area measured at the 6th weeks after surgery (both P <0.01).The length of the hematoma and bone extension could not be measured with ultrasound at the 8th weeks after surgery.The detection rates of fluid vesicles with ultrasonography and CT were 16.67%(3/18) and 5.56%(1/18),respectively ( P >0.05),while CT energy spectrum curve could identify the nature of fluid vesicles.The effective radiation dose of energy spectrum CT was (0.71±0.71)mSv. Conclusion Energy spectrum CT and ultrasound both have advantages in monitoring the formation of regenerated tissue during bone transport.Energy spectrum technology can be used as a new monitoring method.
作者
陈雪峰
赵卫东
张永红
石华南
史晓丽
CHEN Xuefeng;ZHAO Weidong;ZHANG Yonghong;SHI Hua-nan;SHI Xiaoli(Department of Medical Imaging,Shanxi Medical University,Taiyuan 030001,China;Department of Imaging,the Second Hospital of Shanxi Medical University, Taiyuan 030001,China;Department of Orthopedics,the Second Hospital of Shanxi Medical University, Taiyuan 030001,China;Department of Orthopedics,Kaifeng Central Hospital,Kaifeng 475000,China)
出处
《中国医学影像技术》
CSCD
北大核心
2019年第4期586-591,共6页
Chinese Journal of Medical Imaging Technology
关键词
能谱成像
超声检查
骨搬移
骨愈合
energy spectrum imaging
ultrasonography
bone transport
knitting
