QEEG Evidence Not Admissible In BC Brain Injury Claim

(Image courtesy of Wikipedia)
Reasons for judgement were published this week by the BC Supreme Court, Victoria Registry, addressing the admissibility of QEEG Evidence in a brain injury claim.  In short the Court held that while such evidence may be admissible in appropriate cases, the evidence presented in the case was insufficient to meet the threshold test of reliability to admit “novel” evidence.
In this week’s case (Bialkowski v. Banfield) the Plaintiff was injured in a motor vehicle collision.  He allegedly suffered a traumatic brain injury.  In support of his claim he tired to introduce QEEG evidence  tendered through a neuropsychologist.  Mr. Justice Bracken declined to let the evidence in finding that the neuropsychologist was not properly qualified to introduce the QEEG evidence and further the evidence was not proven to be reliable.  In excluding the evidence Mr. Justice Bracken provided the following summary of his findings:



[3] Electroencephalography (“EEG”) is a means of recording the electrical activity of the brain.  Typically, electrical signals are received through 19 electrodes placed on certain areas of the scalp by attaching the electrodes to a cap that fits snugly over the patient’s head.  The electrical activity is then recorded either on paper, or digitally on a computer.  The clinician can then visually examine the recorded data to analyze the patterns of activity.

[4] QEEG is a relatively new neuroimaging technique.  It uses computer assisted analysis of EEG tests.  The raw EEG data is digitized and analyzed by means of a mathematical algorithm.  It is said that the computer analysis is capable of extracting more information from the raw EEG data and enables the clinician to observe more subtle anomalies than can be seen with the eye on standard visual analysis.  Using another program the digitized data is then compared to a normative database to determine if the data are consistent with what is normal for a comparable group of individuals…

[58] While there may be cases where QEEG evidence will be accepted as part of expert opinion in Canadian Courts it should only be through a neurologist who is trained and qualified in EEG testing and analysis.  In my view, only a trained electroencephalographer who has the skill, knowledge and training to recognize the potential for error is qualified to give opinion evidence of QEEG analysis.

[59] On the evidence presented in this case, I find the QEEG evidence to be novel science and not sufficiently reliable for admission into evidence on the principles established in J.L.J. andMohan.  I conclude it will not assist the trier of fact.  As science progresses this may change and the evidence may meet the test of reliability so as to be admissible at some point in the future.  As was noted in Seifert, the fact that expert evidence conflicts does not, by itself, make it inadmissible.  Coburn, et al, recognize this in the conclusion of their report at p. 23, where it is stated:

Used cautiously and with appropriate recognition of its limitations, QEEG offers the clinician an accurate laboratory test to aid in the detection and differential diagnosis of several common neuropsychiatric disorders.  …  Additional uses of QEEG showing promise but not yet sufficiently developed for routine clinical application include the prediction of medication efficacy and the prediction of the clinical cause of a disorder.

There is nothing in that conclusion to suggest it will become clinically useful in diagnosing traumatic brain injury in the near future; however, it remains open for such evidence to be offered through an appropriate expert if and when it satisfies the evidentiary requirements of Canadian Courts.

[60] The evidence of QEEG analysis given by Dr. Malcolm is rejected as not being offered by a qualified expert.  QEEG does not meet the requisite reliability threshold and is still novel science.



bc injury law, Bialkowski v. Banfield, Mr. Justice Bracken, QEEG

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ERIK
MAGRAKEN

Personal Injury Lawyer

When not writing the BC Injury Law Blog, Erik is the managing partner at MacIsaac & Company, based in Victoria, B.C. He is also involved with combative sports regulatory issues and authors the Combat Sports Law Blog.

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