Publications
Multi-center, peer-reviewed POCUS scholarship — from the bench to the bedside.
A prospective study examining the utility of hepatic artery Doppler waveform analysis performed by emergency physicians for the diagnosis of acute cholecystitis, demonstrating high sensitivity and specificity compared to formal radiology ultrasound.
Abstract
Background: Acute cholecystitis accounts for over 200,000 emergency department visits annually. Hepatic artery Doppler (HAD) has emerged as a promising adjunct for diagnosis. Methods: Prospective observational study of 247 patients presenting with right upper quadrant pain. Emergency physicians performed point-of-care hepatic artery Doppler. Results: HAD demonstrated sensitivity of 94% and specificity of 88% for acute cholecystitis. Resistive index >0.75 was the optimal threshold. Conclusion: Emergency physician-performed HAD is a reliable bedside tool for cholecystitis diagnosis.
This multicenter prospective study evaluated lung ultrasound as a rapid diagnostic tool for community-acquired pneumonia, demonstrating superior sensitivity to chest X-ray in the emergency department setting.
A retrospective analysis of 1,200 central venous catheter placements demonstrating significantly reduced complication rates when real-time ultrasound guidance was employed by emergency physicians.
Systematic review of 42 studies examining the diagnostic accuracy and clinical impact of bedside cardiac ultrasound in patients presenting with undifferentiated shock.
Prospective study comparing emergency physician-performed renal ultrasound to computed tomography for detection of ureteral calculi, demonstrating POCUS as an effective first-line imaging modality.
Evaluation of a structured POCUS training program implemented in three countries, showing durable skill acquisition and improved clinical outcomes in resource-limited emergency departments.
NEJM Evidence, 2024
A landmark study demonstrating that AI-augmented point-of-care cardiac ultrasound reduces diagnostic errors by 35% compared to standard interpretation, with particular benefit for ejection fraction estimation.
Journal of Trauma, 2024
Novel application of contrast-enhanced ultrasound in the emergency setting demonstrates superior sensitivity for splenic injuries compared to standard B-mode FAST examination.
Annals of Emergency Medicine, 2024
Multicenter validation confirming ONSD measurement >5.0mm has 87% sensitivity and 93% specificity for elevated intracranial pressure in traumatic brain injury patients.
Multicenter registry tracking hepatic artery Doppler findings and cholecystitis outcomes across 8 emergency departments.
Longitudinal assessment of clinical competency and patient outcomes in fellowship-trained emergency ultrasound physicians.
Evaluation of competency metrics for healthcare providers trained in low-resource settings.