Quint L E, Whyte R I, Kazerooni E A, Martinez F J, Cascade P N, Lynch J P, Orringer M B, Brunsting L A, Deeb G M
Department of Radiology, University of Michigan Medical Center, Ann Arbor 48109-0030.
Radiology. 1995 Mar;194(3):871-7. doi: 10.1148/radiology.194.3.7862994.
To assess the accuracy of helical computed tomography (CT) with multiplanar reconstructions (MPRs) in the evaluation of stenoses of the central airways.
Thin-section axial CT and helical CT with MPRs were used to examine the central tracheobronchial tree for the presence of stenosis in 27 patients who underwent lung transplantation and 17 nontransplantation patients. The findings from these modalities were then compared with the findings obtained at conventional tomography and bronchoscopy, when available.
Axial CT alone was 91% accurate in depicting stenosis, CT with MPRs was 94% accurate, and conventional tomography was 89% accurate in the evaluation of bronchial anastomosis in transplant recipients. CT and CT scans with MPRs were each 91% accurate in depicting stenosis in nontransplantation patients; the single false-negative finding showed focal tracheomalacia at bronchoscopy.
CT with MPRs may be more accurate than thin-section axial CT in the demonstration of mild stenosis, the length of a stenosis, and horizontal webs.
评估螺旋计算机断层扫描（CT）结合多平面重建（MPR）在评估中央气道狭窄方面的准确性。
对27例肺移植患者和17例非移植患者，采用薄层轴向CT和螺旋CT结合MPR检查中央气管支气管树有无狭窄。然后将这些检查方式的结果与常规断层扫描和支气管镜检查（若有）的结果进行比较。
在评估移植受者的支气管吻合口狭窄时，单纯轴向CT的准确率为91%，CT结合MPR的准确率为94%，常规断层扫描的准确率为89%。在评估非移植患者的狭窄时，CT和CT结合MPR的准确率均为91%；唯一的假阴性结果显示支气管镜检查时有局灶性气管软化。
在显示轻度狭窄、狭窄长度和水平条索方面，CT结合MPR可能比薄层轴向CT更准确。
