Diaphragmatic Ultrasound in Adults: Image Acquisition and Interpretation

Area of Science:

• Medical Diagnostics
• Respiratory Medicine
• Point-of-Care Ultrasound

Background:

• Diaphragm dysfunction is a significant concern in critical care and perioperative settings.
• Accurate diaphragm assessment is crucial for mechanical ventilation weaning and phrenic nerve evaluation.
• Traditional assessment methods like fluoroscopy and nerve studies are limited by time, cost, and portability.

Purpose of the Study:

• To address limitations in current point-of-care ultrasound (POCUS) protocols for diaphragmatic dysfunction.
• To identify and describe a simple, reliable POCUS technique for diaphragm assessment.
• To improve interoperator reliability in evaluating diaphragm function using POCUS.

Main Methods:

• Review of existing literature on diaphragmatic POCUS.
• Identification of an image acquisition technique with high interoperator reliability.
• Stepwise description of a qualitative and quantitative POCUS assessment of diaphragm excursion and the zone of apposition.

Main Results:

• A novel POCUS technique for diaphragm assessment was identified.
• The technique emphasizes both qualitative assessment of diaphragm excursion and quantitative evaluation of the zone of apposition.
• The described method aims for simplicity and high interoperator reliability.

Conclusions:

• The proposed POCUS technique offers a reliable and accessible method for diaphragm assessment.
• Standardizing POCUS protocols can overcome current limitations in evaluating diaphragmatic dysfunction.
• This approach can enhance diagnostic accuracy in various clinical settings.