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Noninvasive detection of elevated intracranial pressure using a portable ultrasound system
- Source :
- The American journal of emergency medicine. 30(6)
- Publication Year :
- 2011
-
Abstract
- The aim of this study is to prospectively compare the accuracies of transcranial color-coded sonography (TCCS) and transcranial Doppler (TCD) in the diagnosis of elevated intracranial pressure.A prospective, blinded, head-to-head comparison of TCD and TCCS methods using intracranial pressure (ICP) measured continuously via an intraparenchymal catheter as the reference standard in 2 groups of 20 neurocritical care patients each: high ICP (group 1) and normal ICP (group 2). Middle cerebral artery (MCA) pulsatility index (PI) recordings from all patients' sonographic reports were selected based on the highest left or right recorded MCA PI. Transcranial Doppler was performed using a dedicated TCD device, and TCCS was performed using a portable ultrasound system.The PI values obtained did not differ significantly between the 2 methods (group 1, P = .46; group 2, P = .11). Linear regression analysis identified a significant relationship between PI obtained with both methods (r = 0.897; P.0001). The duration of PI measurement was statistically longer with TCCS than TCD (group 1, P.01; group 2, P.01). Diagnostic accuracies were good and similar for both methods (TCD area under curve, 0.901; TCCS area under curve 0.870; P = .69).This work is a pilot study comparing TCCS and TCD in the detection of elevated ICP. This study suggests that a bedside portable ultrasound system may be useful to determine MCA PI with accuracy similar to that of a dedicated TCD device.
- Subjects :
- Male
medicine.medical_specialty
Middle Cerebral Artery
Intracranial Pressure
Ultrasonography, Doppler, Transcranial
Point-of-Care Systems
medicine.artery
Medicine
Humans
Single-Blind Method
Elevated Intracranial Pressure
Prospective Studies
Ultrasonography, Doppler, Color
Prospective cohort study
Intracranial pressure
business.industry
Neurointensive care
General Medicine
Middle Aged
Portable ultrasound
Transcranial Doppler
Surgery
Catheter
Middle cerebral artery
cardiovascular system
Emergency Medicine
Female
Intracranial Hypertension
business
Nuclear medicine
Subjects
Details
- ISSN :
- 15328171
- Volume :
- 30
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- The American journal of emergency medicine
- Accession number :
- edsair.doi.dedup.....801662c21e170405686d546ebbc2f990