实用医学影像杂志
實用醫學影像雜誌
실용의학영상잡지
JOURNAL OF PRACTICAL MEDICAL IMAGING
2014年
2期
98-100
,共3页
胸部%气管异物%体层摄影术,X线计算机
胸部%氣管異物%體層攝影術,X線計算機
흉부%기관이물%체층섭영술,X선계산궤
Thorax%Trachea%Foreign bodies%Tomography,X-ray computed
目的:评价64排CT气道成像技术对气管支气管异物检查的诊断价值。方法对50例临床怀疑气道异物的患者应用GE Light Speed 64排容积CT(VCT)进行容积扫描,将所得的容积数据经0.625 mm重建后传至工作站,运用CT仿真内窥镜(CTVE)、多平面重组技术(MPR)、容积再现技术+透明化处理(VR+Raysum)、最小密度投影(MinP)对图像进行后处理重建,以支气管镜检查为金标准,评估64排CT检查的敏感性和特异性,并采用χ2检验比较不同后处理方法与支气管镜诊断气管异物形态符合率。结果64排CT扫描结合气道成像技术诊断气道异物的敏感性为100%,特异性为60%,准确率为96%;不同后处理方法(CTVE、MPR、VR+Ray-sum、MinP 4种方法结合)诊断异物形态与支气管镜检查的符合率分别为:98%、87%、82%、42%、100%,不同后处理方法与支气管镜诊断气管异物形态符合率之间差异有统计学意义(χ2=4.810,P<0.05)。结论64排CT气道成像结合不同后处理方法能够提高气道异物诊断的准确性,不同后处理方法联合应用诊断异物形态对指导内窥镜检查或手术有重要意义。
目的:評價64排CT氣道成像技術對氣管支氣管異物檢查的診斷價值。方法對50例臨床懷疑氣道異物的患者應用GE Light Speed 64排容積CT(VCT)進行容積掃描,將所得的容積數據經0.625 mm重建後傳至工作站,運用CT倣真內窺鏡(CTVE)、多平麵重組技術(MPR)、容積再現技術+透明化處理(VR+Raysum)、最小密度投影(MinP)對圖像進行後處理重建,以支氣管鏡檢查為金標準,評估64排CT檢查的敏感性和特異性,併採用χ2檢驗比較不同後處理方法與支氣管鏡診斷氣管異物形態符閤率。結果64排CT掃描結閤氣道成像技術診斷氣道異物的敏感性為100%,特異性為60%,準確率為96%;不同後處理方法(CTVE、MPR、VR+Ray-sum、MinP 4種方法結閤)診斷異物形態與支氣管鏡檢查的符閤率分彆為:98%、87%、82%、42%、100%,不同後處理方法與支氣管鏡診斷氣管異物形態符閤率之間差異有統計學意義(χ2=4.810,P<0.05)。結論64排CT氣道成像結閤不同後處理方法能夠提高氣道異物診斷的準確性,不同後處理方法聯閤應用診斷異物形態對指導內窺鏡檢查或手術有重要意義。
목적:평개64배CT기도성상기술대기관지기관이물검사적진단개치。방법대50례림상부의기도이물적환자응용GE Light Speed 64배용적CT(VCT)진행용적소묘,장소득적용적수거경0.625 mm중건후전지공작참,운용CT방진내규경(CTVE)、다평면중조기술(MPR)、용적재현기술+투명화처리(VR+Raysum)、최소밀도투영(MinP)대도상진행후처리중건,이지기관경검사위금표준,평고64배CT검사적민감성화특이성,병채용χ2검험비교불동후처리방법여지기관경진단기관이물형태부합솔。결과64배CT소묘결합기도성상기술진단기도이물적민감성위100%,특이성위60%,준학솔위96%;불동후처리방법(CTVE、MPR、VR+Ray-sum、MinP 4충방법결합)진단이물형태여지기관경검사적부합솔분별위:98%、87%、82%、42%、100%,불동후처리방법여지기관경진단기관이물형태부합솔지간차이유통계학의의(χ2=4.810,P<0.05)。결론64배CT기도성상결합불동후처리방법능구제고기도이물진단적준학성,불동후처리방법연합응용진단이물형태대지도내규경검사혹수술유중요의의。
Objective To evaluate the value of 64 rows CT airway imaging in the diagnosis of tracheal bronchus foreign body. Methods Fifty patients with suspected airway foreign body underwent GE Light Speed 64 rows VCT volume scan. The volume data after 0.625 mm reconstruction was send to the workstation, and was recon-structed with CTVE, MPR,VR+ Raysum, MinP. Then taking bronchoscopy as a gold standard, we assessed the sensi-tivity and specificity of 64 rows CT. And we compared the coincidence rate between various post-processing method of airway foreign body and bronchoscopy by Chi square test. Results The sensitivity of 64 rows CT airway imaging in the diagnosis of airway foreign body was 100%, the specificity of it was 60%, and the accuracy of it was 96% . The coincidence rate were respectively 98%, 87%, 82%, 42%,100% , there was significant difference (χ2=4.810, P<0.05) between bronchoscopy and different post-processing methods (CTVE, MPR, VR+Ray-sum, MinP, four methods union) in the diagnosis of foreign body shape. Conclusion 64 rows CT airway imaging with different post-processing meth-ods can improve the diagnostic accuracy of airway foreign body, and different post-processing methods in the diagnosis of foreign body shape is significant for guiding the endoscopy or surgery.