陳華震 黃淑娟 郭峰
【摘 要】 目的:分析研究多層螺旋CT(Multi-slice Spiral CT,MSCT)對骶骨骨折的臨床應用價值。方法:收集我院2009年5月至2012年5月31例確診為骶骨骨折病人的DR平片和MSCT掃描圖像,并對MSCT掃描圖像進行多平面重建(MPR)、三維重建后處理,最后進行圖像對比分析研究。結果:31例骶骨骨折,MSCT軸位結合多平面重建、三維重建均能明確診斷。其中DenisⅠ型9例,約占29%;Ⅱ型15例,約占48%;Ⅲ型7例,約占23%。DR平片發現骨折18例,漏診率約42%。對確診的骶骨骨折進行Denis分類,DR平片正確分型11例(61.1%,11/18),MSCT正確分型31例(100%,31/31),DR平片與MSCT之間的差異有顯著的統計學意義(P<0.01)。結論:MSCT掃描及多平面重建(MPR)、三維重建(3D)后處理能準確、全面地顯示骶骨骨折的部位及類型,對骶骨骨折的診斷及制定治療方案具有重要的臨床應用價值。
【關鍵詞】 骶骨骨折;MSCT;多平面重建(MPR);三維重建(3D)
【中圖分類號】 R683.6 【文獻標識碼】 B
The Clinical Value of MSCT (Multi-slice Spiral CT) in the Diagnosis of Sacrum Fracture
Chen Huazhen1* Huang Shujuan2 Guo Feng1
(1Quanzhou medical college people's hospital affiliated,Quanzhou,Fujian,362000,
2The second affiliated hospital of Fujian Medical University,Fujian,Quanzhou,362000)
【Abstract】 Objective To evaluate the clinical value of MSCT (Multi-slice Spiral CT) MPR and 3D reconstruction in the diagnosis of sacrum fracture.Methods Collect the DR and MSCT images of 31 patients with sacrum fracture of our hospital from 2009.5 to 2012.5.All of them were aftercured by using post-process of MPR and 3D reconstruction.Result All can be clearly diagnosed by MSCT using post-process of MPR and 3D reconstruction. There are nine cases of DenisⅠtype, about 29 percent; 15 cases of DenisⅡtype,about 48 percent; 7 cases of DenisⅢ type, about 23 percent; There are 18 cases to be discovered by DR X-ray examination,rate of missed diagnosis about 42 percent. To Denis classification diagnosis of sacrum fracture. DR X-ray examination of correct classification in 11 cases(61.1 percent,11/18).MSCT of correct classification in 31 cases(100 percent,31/31).DR X-ray examination with MSCT had significant difference between the statistical significance (P < 0.01).Conclusion MSCT examination and MPR ,3D reconstruction aftercure can display distinctly and roundly the location and type of sacrum fracture,which is of great importance and clinical value to the diagnosis and establishment of surgical treatment.
【Keywords】 Sacrum fracture;MSCT;Multi-planar reconstruction (MPR);Three dimensional(3D) reconstruction
骶骨骨折并不少見,常由高能量創傷引起,大多由交通事故、高處墜下及嚴重的側方擠壓傷引起,約占脊柱骨折的1%。由于骶骨上連腰椎,旁接髂骨,它既是脊柱的一部分,又在骨盆構架中舉足輕重,而且骶骨骨折常合并有嚴重的其他器官的損傷和其它部位的骨折,因而骶骨骨折理所應當引起重視。由于骶尾骨位置相對隱蔽,所造成的神經損傷也不引人注目,因此在傷后第一時間內常易漏診,僅在合并傷穩定之后,骶骨骨折所引起的神經損害癥狀逐漸出現時才被發現[1],如果對這種病人只拍攝常規骶骨正、側位片,由于骶尾骨形態復雜、解剖變異多,加上受盆腔腸道積氣、積糞的影響,骶骨骨折線常不易顯示,故常規X線平片極易漏診,文獻報道其發生率高達61%[2],比本研究組的42%高。本研究利用MSCT多平面(Multi-planar reconstruction,MPR)及3D圖像后處理技術觀察分析31例骶骨骨折病人的影像資料,探討MSCT在骶骨骨折中的臨床應用價值。……