1Young K, Aspaertrand F, Kolbenstvedt A. A High resolutionCT and brinchography in the assessment of bronchiectasis [J].Acta Radiol,1991,32:439-441.
2Lynch DA, Newell JD, Tschomper BA et al. Uncomplicatedasthma in adults: comparison of CT apperance of the lungs inasthmatic and heaithy subjects [J]. Radiology, 1993,188: 829-833.
3Desai SR, Wells AU,Cheah FK?et al. The producibility of bro-chial circumference measurments using CT[J]. Br J Radiol,1994,67:257-262.
4Kim JS, Muller NL, Park CS?et al. Brocnoarterial ratio on thinsection CT: comparison between high altitude and sea level[J].J Comoput Assist Tomogr, 1997,21 : 306-311.
5Kang EY, Miller RR, Muller NL. Bronchiectasis : comparison ofpreoperative thin- section CT and pathologic findings in resec-ted specimens[j]. Radiology, 1995,195;649-654.
6Webb WR, Stein MG, Finkbeiner WE, et al. Normal and dis-eased isolated lungs: high resolution CT[J]. Radiology,1988,166:61-87.
7Reid LM. Reduction in bronchial subdivision in bronchiectasis[J].Thorax,1950,5 : 233-236.
