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FIGURE 4. CT virtual bronchoscopy compared with PET/CT virtual bronchoscopy. (A, C, and E) Standard 2D PET/CT tomographs illustrating patient with highly 18F-FDG–avid malignant subcarinal/paratracheal mass that extends along right tracheal sidewall and right bronchus. (B) CT virtual bronchoscopy illustrating that tracheal sidewall and carina appear normal, without indication of large tumors that abut central airways. (D) PET/CT virtual bronchoscopy showing abnormal 18F-FDG uptake along right paratracheal wall, carina, and proximal right bronchus consistent with regions of malignant tissue that were not evident on CT virtual bronchoscopy. Images and video fly-through provided excellent preview of region before surgical bronchoscopy. t = tumor.
