CAJ | 학술논문

目的探讨MSCT重组图像在诊断先天性支气管桥(BB)中的临床应用价值.方法回顾性分析12例经MSCT重组图像诊断的先天性支气管桥畸形的影像表现.图像后处理方法包括MPR、MinIP、MIP、VR.结果 12例支气管桥中,Ⅰ型支气管桥6例,表现为正常隆突位于T2～3平面,存在右肺支气管分支,隆突角平均59.2°,支气管桥起源于隆突下左主支气管,该位置称为假隆突,位于T4～5平面,夹角平均108.80°,支气管桥起源以前的左主支气管明显狭窄,宽约1～2mm,长约17 mm.Ⅱ型支气管桥6例,表现为正常隆突位置平面无右肺支气管分支,支气管桥起源于气管更远端,供应整个右肺,假隆突位于T4～5平面,角度平均131 °,均伴气管下段狭窄,宽约2～3 mm,长约30 mm,4例气管下段向左侧倾斜,2例伴肺动脉吊带.结论 MSCT可以对先天性支气管桥进行定性诊断,重组图像可以直观地观察气管、支气管、隆突的形态、走行、管径及与周围组织的关系.
목적 탐토MSCT중조도상재진단선천성지기관교(BB)중적림상응용개치.방법 회고성분석12례경MSCT중조도상진단적선천성지기관교기형적영상표현.도상후처리방법포괄MPR、MinIP、MIP、VR.결과 12례지기관교중,Ⅰ형지기관교6례,표현위정상륭돌위우T2～3평면,존재우폐지기관분지,륭돌각평균59.2°,지기관교기원우륭돌하좌주지기관,해위치칭위가륭돌,위우T4～5평면,협각평균108.80°,지기관교기원이전적좌주지기관명현협착,관약1～2mm,장약17 mm.Ⅱ형지기관교6례,표현위정상륭돌위치평면무우폐지기관분지,지기관교기원우기관경원단,공응정개우폐,가륭돌위우T4～5평면,각도평균131 °,균반기관하단협착,관약2～3 mm,장약30 mm,4례기관하단향좌측경사,2례반폐동맥조대.결론 MSCT가이대선천성지기관교진행정성진단,중조도상가이직관지관찰기관、지기관、륭돌적형태、주행、관경급여주위조직적관계.
Objective To assess the diagnostic value of MSCT in congenital bridging bronchus (BB).Methods Three-dimensional (3D) reconstructed CT images including MPR,MinIP,MIP,VR were respectively analyzed in 12 patients with congenital bridging bronchus on postprocessing workstation.Results Six of 12 BB patients were type Ⅰ bridging bronchus which originated from the left main bronchus at the level of fourth and fifth thoracic vertebral body,while the right bronchus was originated from the normal carina at the level of second and third thoracic vertebral body.The average angle of normal carina was about 59.2°,and the average angle of pseudocarina where BB originated from the left main bronchus was about 108.8°.The left main bronchus proximal to the origin of BB showed significant stenosis,with 1-2 mm width and 17 mm length in the involved segment.Six cases were type Ⅱ bridging bronchus,the right bronchus was absent in normal carina,BB originated at the level of fourth and fifth thoracic vertebral body,the average angle of pseudocarina was about 131°,the whole right lung was supplied by BB.The lower portion of trachea had stenosis in all 6 patients with 2-3 mm width and 30 mm length in the involved segment The lower portion of the trachea was found moving to the left in 4 patients and the left pulmonary artery sling was found in 2 patients.Conclusion MSCT can afford a definite diagnosis of BB by showing the morphology of trachea,bronchus,carina and relationship with surrounding organs with 3D reconstructions.