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Intensive Care Med. 2019 Jul;45(7):913-927. doi: 10.1007/s00134-019-05610-4. Epub 2019 Apr 25.

Brain ultrasonography: methodology, basic and advanced principles and clinical applications. A narrative review.

Author information

1
Department of Anaesthesia and Intensive Care, Ospedale Policlinico San Martino IRCCS, San Martino Policlinico Hospital, IRCCS for Oncology, University of Genoa, Largo Rosanna Benzi, 15, 16100, Genoa, Italy. kiarobba@gmail.com.
2
Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.
3
Department of Anaesthesia and Intensive Care, University Hospital of Toulouse, Toulouse NeuroImaging Center (ToNIC), Inserm-UPS, University Toulouse 3-Paul Sabatier, Toulouse, France.
4
Department of Anesthesiology, Pharmacology and Therapeutics, Vancouver General Hospital, University of British Columbia, Vancouver, BC, Canada.
5
Cardiac Anesthesia and Intensive Care, Fondazione Cardiocentro Ticino, Lugano, Switzerland.
6
Brain Physics Laboratory, Division of Neurosurgery, Department of Clinical Neurosciences, Cambridge Biomedical Campus, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
7
Division of Critical Care and Hospitalist Neurology, Department of Neurology, Columbia University, New York, USA.
8
Department of Neurology, Wake Forest Baptist Medical Center, Winston Salem, NC, USA.
9
Department of Neurosurgery, Faculty of Health Sciences, University of Pretoria, Steve Biko Academic Hospital, Pretoria, South Africa.
10
Department of Anaesthesia, Intensive Care and Emergency Medicine, Spedali Civili University Hospital of Brescia, Brescia, Italy.
11
School of Medicine and Surgery, University of Milano Bicocca, Milan, Italy.

Abstract

Brain ultrasonography can be used to evaluate cerebral anatomy and pathology, as well as cerebral circulation through analysis of blood flow velocities. Transcranial colour-coded duplex sonography is a generally safe, repeatable, non-invasive, bedside technique that has a strong potential in neurocritical care patients in many clinical scenarios, including traumatic brain injury, aneurysmal subarachnoid haemorrhage, hydrocephalus, and the diagnosis of cerebral circulatory arrest. Furthermore, the clinical applications of this technique may extend to different settings, including the general intensive care unit and the emergency department. Its increasing use reflects a growing interest in non-invasive cerebral and systemic assessment. The aim of this manuscript is to provide an overview of the basic and advanced principles underlying brain ultrasonography, and to review the different techniques and different clinical applications of this approach in the monitoring and treatment of critically ill patients.

KEYWORDS:

Brain ultrasonography; Neurosonology; Optic nerve sheath diameter; Transcranial Doppler

PMID:
31025061
DOI:
10.1007/s00134-019-05610-4

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