Use of intracranial and ocular thermography before and after arteriovenous malformation excision

Peter Y. K. Hwang; Philip M. Lewis; Jerome J. Maller

doi:10.1117/1.JBO.19.11.110503

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Use of intracranial and ocular thermography before and after arteriovenous malformation excision

Journal article

Open access

Peer reviewed

Use of intracranial and ocular thermography before and after arteriovenous malformation excision

Peter Y. K. Hwang, Philip M. Lewis and Jerome J. Maller

Journal of biomedical optics, Vol.19(11), pp.110503-110503

11/01/2014

DOI: 10.1117/1.JBO.19.11.110503

PMID: 25408956

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Abstract

Excision of arteriovenous malformations (AVMs) is known to carry a risk of postoperative hemorrhage, postulated to be the result of normal perfusion pressure breakthrough. It is also possible that AVMs may cause a steal effect, reducing perfusion in nearby vessels. There is currently no simple method of visualizing the presence or absence of steal effect intraoperatively. We hypothesized that the infrared thermographic (heat sensitive) imaging of perilesional brain may be useful for detecting reduced perfusion due to steal. Moreover, we hypothesized that if steal effect was present, it could impact on ocular perfusion and thereby temperature. Our objective was, therefore, to investigate whether perilesional cortical and ocular temperature (OT) may be a marker of steal effect. We intraoperatively acquired conventional and thermal images of the surgical field and eyes bilaterally, pre- and post-excisions of a large left hemisphere AVM. We found OT asymmetry preoperatively, which was absent after the AVM was excised. Intraoperative thermal images showed an increase of perilesional temperature, although this could be confounded by generalized changes in cortical perfusion due to anesthetics or surgery. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE).

Biochemical Research Methods

Biochemistry & Molecular Biology

Life Sciences & Biomedicine

Optics

Physical Sciences

Radiology, Nuclear Medicine & Medical Imaging

Science & Technology

Details

Title: Subtitle: Use of intracranial and ocular thermography before and after arteriovenous malformation excision
Creators: Peter Y. K. Hwang - The Alfred Hospital
Philip M. Lewis - The Alfred Hospital
Jerome J. Maller - Monash University
Resource Type: Journal article
Publication Details: Journal of biomedical optics, Vol.19(11), pp.110503-110503
DOI: 10.1117/1.JBO.19.11.110503
PMID: 25408956
NLM abbreviation: J Biomed Opt
ISSN: 1083-3668
eISSN: 1560-2281
Publisher: Spie-Soc Photo-Optical Instrumentation Engineers
Number of pages: 3
Language: English
Date published: 11/01/2014
Academic Unit: Radiology
Record Identifier: 9984848501102771

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