Automatic calculation of hydrostatic pressure gradient in patients with head injury: A pilot study

Laura Moss*, Martin Shaw, Ian Piper, D. K. Arvind, Christopher Hawthorne

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract / Description of output

The non-surgical management of patients with traumatic brain injury is the treatment and prevention of secondary insults, such as low cerebral perfusion pressure (CPP). Most clinical pressure monitoring systems measure pressure relative to atmospheric pressure. If a patient is managed with their head tilted up, relative to their arterial pressure transducer, then a hydrostatic pressure gradient (HPG) can act against arterial pressure and cause significant errors in calculated CPP. To correct for HPG, the arterial pressure transducer should be placed level with the intracranial pressure transducer. However, this is not always achieved. In this chapter, we describe a pilot study investigating the application of speckled computing (or “specks”) for the automatic monitoring of the patient’s head tilt and subsequent automatic calculation of HPG. In future applications this will allow us to automatically correct CPP to take into account any HPG.

Original languageEnglish
Title of host publicationIntracranial Pressure and Brain Monitoring XV
Place of Publication978-3-319-22532-6
PublisherSpringer International Publishing
Number of pages4
ISBN (Electronic)978-3-319-22533-3
Publication statusPublished - 1 May 2016

Publication series

NameActa Neurochirurgica Supplement
PublisherSpringer International Publishing
ISSN (Print)0065-1419

Keywords / Materials (for Non-textual outputs)

  • Cerebral perfusion pressure
  • Critical care
  • Hydrostatic pressure gradient
  • Transducers


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