Diagnosing Obstructive Lung Disease With Point of Care Ultrasound

Diagnosing Obstructive Lung Disease With Point of Care Ultrasound- A Cross-sectional, Diagnostic Accuracy Test

The objective of this study is to evaluate the diagnostic accuracy of Point of Care Ultrasound (POCUS) in identifying obstructive lung diseases (OLDs), using pulmonary function tests (PFTs) as the gold standard for comparison.

In this cross-sectional diagnostic accuracy test, 200 patients meeting the inclusion criteria will be enrolled to undergo random POCUS scans at the respiratory institute of Soroka University Medical Center. These patients, referred for PFTs, will be provided with a sonographic score based on several criteria. The study aims to capture comprehensive data, including sonographic results and medical history, to assess the sensitivity, specificity, PPV, and NPV of POCUS in diagnosing OLDs. Data management and analysis will be the responsibility of the Soroka Clinical Research Center, ensuring rigorous oversight and reliable results.

Inclusion Criteria:

• Age 18 or above
• Referral for full pulmonary function tests (PFTs)
• Patients are willing and able to sign a written informed consent form.

Exclusion Criteria:

• Unable to give written informed consent.
• Unable to remain supine.
• Poor effort at PFTs
• Subcutaneous emphysema