骨折的X线、CT和MRI诊断对比研究

摘要目的：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MR／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（血一液平）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。骨折合并痘及骨折分期诊断价值优于x线平片和CT。

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

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.