Abstract：Objective: To investigate the ability of 64-row CT in demonstrating blood supply of primary lung cancer. Materials and Methods: 64-row CT scans were performed in 62 primary lung cancer cases and 30 normal control cases. The contrast-enhanced CT was performed 28~30s after injecting contrast medium. The images reconstructions of VR, MIP and MPR were performed at AW 4.2 workstation. Results: The mean number of bronchial arteries(BA) reconstructed on cancer group was more than that in the control group, 2.6 vs 1.5 per case respectively. 69.3% cases in cancer group displayed only one BA in the right lung and 50% showed more than two BA in the left lung. The BA of R1L2 accounted for 35.5% of lung cancer cases. Seven aberrant BA were detected, which were originated from subclavian arteries and its branches. In 6 cases systemic arteries supplied lung cancers, including 3 cases of intercostal arteries, 2 cases of internal mammary arteries and 1 case of subclavian artery. In lung cancer group, 34 cases could demonstrate tumor vasiformation on MIP reconstruction. The caliber of BA and the total axial areas on the side of the lung cancer were larger than those of the opposite side and of the control group(P<0.05). BA axial area was correlated with tumor size but not with location. Conclusion: 64-row CT can provide information about anatomy and morphology of BA, aberrant BA origin and abnormal systemic artery blood supply of tumors. Tumor vasiformation can be detected with MIP reconstruction. These are helpful for study of blood supply of tumor and transcatheter bronchial arterial chemoembolization of primary lung cancer.
2008, Vol. 19 
