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The value of the inspiratory and expiratory phase CT scan combined with impulse oscillometry system in early chronic obstructive pulmonary disease

The value of the inspiratory and expiratory phase CT scan combined with impulse oscillometry system in early chronic obstructive pulmonary disease

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2000040480
Enrollment
Unknown
Registered
2020-11-29
Start date
2020-12-01
Completion date
Unknown
Last updated
2021-03-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

chronic obstructive pulmonary disease

Interventions

Case series:Nil

Sponsors

The Ninth Hospital of Xi'an
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients who has been hospitalized for chronic bronchitis and chronic obstructive pulmonary disease(only GOLD grades 1 and 2 were enrolled).

Exclusion criteria

Exclusion criteria: Patients who exhibited serious comorbidities of the respiratory system, such as tumor, active tuberculosis, asthma or previously undergo surgical treatment.

Design outcomes

Primary

MeasureTime frame
lung volume on inspiratory CT scan;lung volume on expiratory CT scan;mean lung density on inspiratory CT scan;mean lung density on expiratory CT scan;mean lung density on expiratory CT scan;resonance frequency;respiratory resistance at 5 Hz;respiratory resistance at 20 Hz;area of reactance;—

Countries

China

Contacts

Public ContactXia Wei

The Ninth Hospital of Xi'an

wx2005hope@126.com+86 18891991910

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026