Accuracy of non-invasive intracranial pressure measurement-Reference-Cited by-同舟云学术

Accuracy of non-invasive intracranial pressure measurement

Published:2012-04-01 Issue:2 Volume:7 Page:169-175
ISSN:2391-5463
Container-title:Open Medicine
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Author:

Seddighi Amir¹,Zadeh Alireza²,Seddighi Afsoun³,Zali Alireza⁴

Affiliation:

1. 1Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Functional Neurosurgery Research Center of Shohada Tajrish Hospital, Shahrara Park, 1445744454, Tehran, Iran

2. 2Shahed University, Shahrara Park, 1445744454, Tehran, Iran

3. 3Shahid Rajaee Hospital, Qazvin University of Medical Sciences, Functional Neurosurgery Research Center of Shohada Tajrish Hospital, 1445744454, Tehran, Qazvin, Iran

4. 4Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Neurofunctional Research Center of Shohada Tajrish Hospital, 1445744454, Teheran, Iran

Abstract

AbstractNon-invasive measurement of intracranial pressure (ICP) reduces the complications and cost for both patient and health care systems. Improvement of non-invasive methods has led to development of systems for reproducing continuous, real-time non-invasive ICP signals. So far, non-invasive methods have been tailored for the patients with head trauma. We have used Schmidt’s auto-adaptive method to assess the accuracy of this method for patients after surgery for supratentorial brain tumors. Data from forty patients with the diagnosis of brain tumor operated from 2008 to 2010 were used to estimate the accuracy of Schmidt’s method in our patients. We obtained the model parameters from 30 recordings. We determined the ICP wave form for the remaining patients by both invasive and non-invasive techniques. In the test group, by invasive method, the mean ICP±2SD was 17.1 ± 6.6 mmHg and using non-invasive method, the mean ICP ± 2SD was 16.5 ± 5.4 mmHg. The calculated error was 4.6 mmHg using root mean square errors. The average Pearson correlation between the estimated and real waveforms was 0.92. We believe that application of this method is acceptable for post-operative assessment of ICP in brain tumor patients.

Publisher

Walter de Gruyter GmbH

Subject

General Medicine

Link

http://link.springer.com/content/pdf/10.2478/s11536-011-0129-7.pdf

Reference17 articles.

1. Aaslid R, Lundar T, Lindegaard KF, Nornes H E. Stimation of cerebral perfusion pressure from arterial blood pressure and transcranial Doppler recordings. In: Miller JD, Teasdale GM, Rowan JO, Galbraith SL, Mendelow AD (eds) Intracranial pressure VI. Springer, Berlin, 226–229, 1993

2. Bundgaard H, Landsfeldt U, Cold GE. Subdural monitoring of ICP during craniotomy: Thresholds of cerebral swelling/ herniation ActaNeurochir Suppl (Wien), 71: 276–278, 1998

3. Chan KH, Miller JD, Dearden NM, Andrews PJ, Midgley S. The effect of changes in cerebral perfusion pressure upon middle cerebral artery blood flow velocity and jugular bulb venous oxygen saturation after severe brain injury. J Neurosurg, 77: 117–130, 1992

4. Constantini S, Cotev S, Rappaport ZH, Pomeranz S, Shalit MN. Intracranial pressure monitoring after elective intracranial surgery.A retrospective study of 514 consecutive patients. J Neurosurg. 69(4): 540–544, 1988

5. Czosnyka M, Matta BF, Smielewski P, Kirkpatrick P, Pickard JD Cerebral perfusion pressure in headinjured patients: a non-invasive assessment using transcranial Doppler ultrasonography. J Neurosurg. 88(5), 802–808, 1998