Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica ›› 2006, Vol. 28 ›› Issue (1): 61-63.

• Original Articles • Previous Articles     Next Articles

Correlation between the Lung Pixel Indexes of Multi-slice Spiral CT
and Pulmonary Function Test

GE Xiao-jun;ZHANG Guo-zhen;MAO Ding-biao;DING Qi-yong;HUA Yan-qing


  1. Department of Radiology,Shanghai Huadong Hospital,Shanghai 200040,China

  • Received:2005-10-10 Revised:1900-01-01 Online:2006-02-28 Published:2006-02-28
  • Contact: GE Xiaojun

Abstract: ABSTRACTObjective To study the correlation between the lung pixel indexes of multi-slice spiral CTMSCT and pulmonary function test (PFT),and to explore the CT features of histograms of lung attenuation. Methods MSCT scaning and pulmonary function test (PFT) were separately performed in 127 subjects within one week. The total lung was scanned with MSCT at full inspiration,full expiration,and normal respiration. The lung pixel indexes were measured by Pulmo pulmonary quantitative software. These indexes include PI-910Huin,PI-960Huex,PI-910Huin,PI-960Huex,PI-910Hun,PI-960Hun,PI-910Huex/in,and the histograms of lung attenuation. Results Correlation existed between all the lung pixel indexes of MSCT and PFT. PI-910Huex/in showed the best correlation with FEV1/FVC (r=0.901,P<0.01). Three distribution patterns were found in the histograms of lung attenuation of total lung,including double-peak distribution (n=28),similar normal distribution (n=81),and partial distribution (n=18). Conclusion The lung pixel indexes of MSCT have significant correlation with PFT and can be used to assess the pulmonary function.

Key words: multi-slice spiral ct, pulmonary function tests, pixel indexes