Replaceability of Fluoroscopy and Ultrasound in the Evaluation of Hemidiaphragm Excursion

Replaceability of Fluoroscopy and Ultrasound in the Evaluation of Hemidiaphragm Excursion"

Precise measurement of diaphragm function is difficult. Several methods exist. No are sufficiently validated.

With this study, the investigators wish to investigate the validity of different ultrasound and radiological methods and compare them with inspiratory pressure measurements.

Fluoroscopy assessment of diaphragm motility is obtained and simultaneously correlated to sonographic assessments of motility.

Inclusion Criteria:

• Completed informed consent

• one of the following conditions:

  • Healthy participants, control group

  • Lung disease group.

    • COPD or
    • Ideopatic pulmonary fibrosis.

  • Heart disease group.

Heart disease that lead to:

• heart transplantat or
• left ventricular assist device.

Exclusion Criteria:

• Known diaphragm dysfunction.
• Neuromuscular disease.
• Pleural effusion.
• Pneumothorax.
• In the healthy group: Significant comorbidity that affect heart og lung function (arterial hypertention, mild valve disease and COPD without symptoms are accepted).
• In the healthy group and in the lung disease group: Previous thorax surgery.