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Computerized Lung Sound Analysis (CLSA)

S

Smolle-Juettner Freyja, Prof MD

Status

Completed

Conditions

Pulmonary Fibrosis
Pneumothorax

Treatments

Device: Lung Sound Recording System

Study type

Interventional

Funder types

Other

Identifiers

NCT02771184
28-088 ex 15/16

Details and patient eligibility

About

This clinical trial is conducted within the research project 'Computerized Lung Sound Analysis'. The research goal is the development of a system enabling the automatic classification of lung sounds, which will result in a decision support system for physicians.

The objective of this trial is to create a small lung sound corpus, enabling the development of a prototype of the described system. Therefore, investigators record lung sounds with several lung sound transducers distributed on the posterior chest of human test subjects.

Full description

In this clinical trial investigators record lung sounds over the posterior chest of human test subjects. The subjects are either lung-healthy (control group) or subjects with pneumothorax condition or pulmonary fibrosis. The lung sounds are recorded in supine position on an examination table. A foam pad with several lung sound transducers is placed under the back of the subjects. During the recording the subjects wear a nose clip and hold a pneumotachograph with both hands. The subjects are instructed to breath at a certain airflow rate during inspiration, with natural breathing during expiration. For each subject investigators simultaneously record 30 seconds of the airflow signal and the lung sounds from 16 lung sound transducers.

Enrollment

24 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

General:

  • Smoker and non-smoker
  • 'Lung-healthy' subjects (control group), subjects with pneumothorax or subjects with pulmonary fibrosis

Additional for 'lung-healthy' subjects:

  • COPD < 3 (GOLD Criteria)

Exclusion criteria

General:

  • Body Mass Index > 30
  • Preceding thoracic surgery
  • Non-cooperation of the subject
  • Intubated or tracheostomized subjects

Additional for 'lung-healthy' subjects:

  • Disease of the respiratory system
  • Taking medication influencing the respiration

Trial design

Primary purpose

Basic Science

Allocation

Non-Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

24 participants in 3 patient groups

Lung-Healthy
Other group
Description:
Subjects with no diagnosed lung disease. The intervention is the recording of lung sounds with the Lung Sound Recording System.
Treatment:
Device: Lung Sound Recording System
Pneumothorax
Other group
Description:
Subjects with pneumothorax. The intervention is the recording of lung sounds with the Lung Sound Recording System.
Treatment:
Device: Lung Sound Recording System
Pulmonary Fibrosis
Other group
Description:
Subjects with pulmonary fibrosis. The intervention is the recording of lung sounds with the Lung Sound Recording System.
Treatment:
Device: Lung Sound Recording System

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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