Virtual bronchoscopy is an ideal technique for noninvasive evaluation of the tracheobronchial tree which has the advantage of being a noninvasive procedure that can visualize areas inaccessible to the flexible bronchoscope. It is considered a noninvasive modality for identifying tracheo-bronchial obstructions and endoluminal lesions, as well as for assessing the tracheobronchial tree beyond stenoses. Multidetector CT has greatly overcomed the several limitations associated with routine axial CT images suffice for evaluating many airway abnormalities such as limited ability to detect subtle airway stenoses; underestimation of the cranio-caudal extent of disease; difficulty displaying complex 3D relationships of the airways; and inadequate representation of the airways that are oriented obliquely to the axial plane.