Related Experiment Video
Updated: May 12, 2025
Diaphragmatic Ultrasound in Adults: Image Acquisition and Interpretation
Published on: January 31, 2025
Non-Invasive Assessment of Respiratory Mechanics Using Anatomical M-Mode Ultrasound in Acute Pulmonary Oedema With
Timothy Kangwei Wong1, Albert Yick Hou Lim2, Chiao-Hao Lee1
1Emergency Department Tan Tock Seng Hospital Singapore Singapore.
Abstract:
Assessing respiratory mechanics in critically ill patients is crucial for diagnosis and treatment monitoring. The Lung Curtain Swing vs. Time (LCST) graph using Anatomical M-mode (AMM) ultrasound provides a novel non-invasive approach to evaluating lung excursion and respiratory dynamics. An 83-year-old male with end-stage kidney disease on peritoneal dialysis presented with dyspnea and desaturation. Initial evaluation indicated hypertensive crisis with acute pulmonary oedema. NIV therapy improved oxygenation and ventilation, with concurrent lung ultrasound assessments. The LCST graph demonstrated abnormal inspiratory and expiratory waveforms, suggesting respiratory muscle fatigue and bronchial oedema. NIV led to improved lung excursion and retraction speed, correlating with clinical recovery. The LCST graph using AMM ultrasound offers real-time, non-invasive assessment of respiratory mechanics in critical care. This case highlights its potential utility in diagnosing and monitoring respiratory failure, warranting further research.
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