• Vincent I Lau, Atul Jaidka, Katie Wiskar, Nicholas Packer, J Elaine Tang, Seth Koenig, Scott J Millington, and Robert T Arntfield.
• Western University, London, ON, Canada. Electronic address: vinceissaclau@gmail.com.
• Chest. 2020 Jan 1; 157 (1): 142-150.

AbstractTranscranial Doppler (TCD) ultrasound is a noninvasive method of obtaining bedside neurologic information that can supplement the physical examination. In critical care, this can be of particular value in patients who are unconscious with an equivocal neurologic examination because TCD findings can help the physician in decisions related to more definitive imaging studies and potential clinical interventions. Although TCD is traditionally the domain of sonographers and radiologists, there is increasing adoption of goal-directed TCD at the bedside in the critical care environment. The value of this approach includes round-the-clock availability and a goal-directed approach allowing for repeatability, immediate interpretation, and quick clinical integration. This paper presents a systematic approach to incorporating the highest yield TCD techniques into critical care bedside practice, and includes a series of illustrative figures and narrated video presentations to demonstrate the techniques described.Copyright © 2019 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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