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Computed tomography manifestation of acute exacerbation of chronic obstructive pulmonary disease: A pilot study.

Abstract：

:Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is an acute event characterized by the worsening of a patient's respiratory symptoms. To the best of our knowledge, few studies have investigated the computed tomography (CT) manifestation of AECOPD. Thus, the aim of the present study was to examine the CT manifestations during AECOPD. In total, 40 patients with AECOPD admitted to the emergency department were enrolled. CT images obtained at the time of exacerbation and at the 3-month follow-up were paired. Clinical characteristics and routine blood test results were also recorded. Airway dimensions and attenuation per patient were quantified from the 3rd to the 6th generation of four bronchi by Airway Inspector Slicer 2.8. The emphysema extent was also quantified and lung infiltration was detected, classified and measured. The CT images showed an increased wall area percentage (WA%) and increased mean and peak wall attenuation during the AECOPD; however, the extent of emphysema did not change significantly. In total, 60% of AECOPD patients presented with lung infiltration, compared with those at the follow-up CT scanning. The presence and extent of segmental distribution consolidation was correlated with the neutrophil percentage (N%), with a statistically significant difference observed. The total volume of lung parenchymal infiltration was correlated with the white blood cell (WBC) count and N%; however, no significant correlations were detected between the presence or extent of acinar shadow, air space consolidation with lobular distribution, ground-glass attenuation with lobular distribution, thickening of the interlobular septa and signs of infection (including the number of main symptoms, body temperature, WBC count and N%). The WA%, mean wall attenuation and peak wall attenuation increased during AECOPD, but the emphysema extent was unchanged. Lung infiltration existed frequently; however, only consolidation with segmental distribution appeared to be associated with bacterial infection.

journal_name

Exp Ther Med

journal_title

Experimental and therapeutic medicine

authors

Cheng T,Wan H,Cheng Q,Guo YI,Qian Y,Fan L,Feng Y,Song Y,Zhou M,Li Q,Shi G,Huang S

doi

10.3892/etm.2015.2930

subject

Has Abstract

pub_date

2016-02-01 00:00:00

pages

519-529

issue

eissn

1792-0981

issn

1792-1015

pii

ETM-0-0-2930

journal_volume

pub_type

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Computed tomography manifestation of acute exacerbation of chronic obstructive pulmonary disease: A pilot study.