骨折的X线、CT和MRI诊断对比研究

Comparison of X- ray,CT and MRI in detection of bone fracture

目的:比较X线、CT和MRI在骨折中的诊断价值。方法:回顾分析168例骨折患者的影像资料(包括X线平片、CT和MRI)。应用X2检验对X线平片、CT和MRI显示骨折敏感度进行统计分析。结果:168例患者的408处骨折中,X线平片、CT和MRI显示骨折数目分别为298、396和406处。CT和MRI显示骨折敏感度相近(x2=0.17,P>0.05),2者均优于X线平片(x2值分别为15.01和14.46,P值均<0.05)。MRI除显示骨折外,显示骨挫伤163例,韧带损伤65例,脊髓损伤37例,关节腔及关节囊积液(血-液平)46例,骨折累及软骨33例。结论:MRI能发现X线平片和CT不能显示的骨髓、软骨、韧带及脊髓等损伤。骨折合并症及骨折分期诊断价值优于X线平片和CT。

Objective：To compare X - ray, CT, and MRI in detection of bone fracture. Methods： 168 cases of bone fracture with ima- ging diagnosis （including X -Ray, CT and MRI） were analyzed retrospectively. The Chi -square test was used to analyze the uniformity of bone fracture detected by X - ray, CT, and MRI. Results ： Of the 408 bone fracture in 168 patients ,298 bone fractures were found by X - ray, 396 bone fracture by CT and 406 bone fracture by MR｜. With regard to the detection of bone fracture, there was no difference be- tween CT and MRI（ x2 = 0.17, P 〉 0. 05 ） and there was significant difference between CT and X - ray or MRI and X - ray（ x2 = 15.01 and 14.46, P 〈 0.05 ）. MR/was better than other X - ray and CT in detect of bone fracture. The else changes of bone fracture were deter- mined by MRI , which included hone contusion in 163 patients, ligaments injuries in 65 patients, spinal cord injuries in 37 patients, artic- ular cavity hydrops in 46 patients and cartilage injuries in 33 patients. Conclusions： MR/could detect the else changes of bone fracture that can not display by X -ray and CT. Compared with radiography and CT, MR/might be more useful in detection of the else changes of bone fracture and staging of hone fracture.