Table 3—

High-resolution computed tomography patterns at the time of acute exacerbation (number of patients)

CT pattern of GGOPatients n
Acute exacerbation#Survival from acute exacerbationAccelerated declineSurvival of accelerated decline
Diffuse1030
Multifocal70145
Peripheral3265
Total1122310
  • All patients had reticular and honeycombing densities in both lower lobes in addition to ground glass density. CT: computed tomography; GGO: ground glass opacity. #: patients who satisfied the acute exacerbation according to Kondoh's criteria; : patients with definite acute exacerbation (11 patients), suspicious acute exacerbation but not satisfying Kondoh's criteria (five patients) and diagnostic uncertainty (seven patients).