An on-line chromatic and scale-space microvasculature-tracing analysis for transmitted light optical images

Reyes-Aldasoro, C. C., Björndahl, M. A., Akerman, S., Ibrahim, J. & Tozer, G. M. (2011). An on-line chromatic and scale-space microvasculature-tracing analysis for transmitted light optical images. Paper presented at the Medical Image Understanding and Analysis, 14-07-2011 - 15-07-2011, London UK.

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Abstract

Limited contrast in optical images from intravital microscopy is problematic for analysing tumour vascular morphology. Moreover, in some cases, changes in vasculature are visible to a human observer but are not easy to quantify. In this paper two quantitative on-line algorithms are presented: scale-space vessel tracing and chromatic decomposition for tumour vasculature from in-vivo transmitted light optical images. The algorithms were tested on intravital window chamber images of the vasculature from SW1222 human colorectal carcinomas, which were treated with a vascular disrupting agent combretastatin-A-4-phosphate (CA-4-P) or saline. The results confirmed the well-known effects of CA-4-P on the constriction of vessels. Furthermore, changes in the chromaticity suggest a deoxygenation of the blood with a recovery to initial levels in CA-4-P-treated tumours relative to the controls. The algorithms can be freely applied to any vascular image through the CAIMAN (CAncer IMage ANalysis: http://www.caiman.org.uk).

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright 2011. The copyright of this document resides with its authors. It may be distributed unchanged freely in print or electronic forms.
Uncontrolled Keywords: vessel tracing, chromatic analysis, tumour vasculature
Subjects: R Medicine > RE Ophthalmology
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/5442

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