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@inproceedings\{Groeller_2011_NSM,
title = "Needle-Stability Maps for Brain-Tumor Biopsies",
author = "Paul Herghelegiu and Vasile Manta and Meister Eduard
Gr{\"o}ller",
year = "2011",
abstract = "Minimally invasive surgical procedures like biopsies require
the insertion of a needle to reach a specific tissue from
where samples are taken. This process is affected by a
number of errors that can lead to a different needle pathway
than originally planned. In the case of brain-tumor
biopsies, these errors can be caused by the brain shifting
when the skull is drilled, measurement errors due to the
physical framework that supports the biopsy needle or some
other human errors. To provide support for preoperative
planning, we introduce the concept of a biopsy-needle
stability-map. This map provides information on how stable a
biopsy-needle pathway is. We also introduce an algorithm for
finding the reachable points on the tumor border from one
specific entry point. A technique for automatically
selecting the needle pathway that offers the biggest minimal
distance to any blood vessel is also presented. A 3D
representation of the regions of interest (tumor, blood
vessels) together with the needle pathway and the reachable
points of the tumor has also been implemented. The resulting
stability map visually represents, using color-coding, how
close to any blood vessel the pathways surrounding the main
one are.",
pages = "259--263",
month = oct,
booktitle = "Proceedings of 15th International Conference on System
Theory, Control and computing (ICSTCC 2011)",
editor = "Editura Universitaria Craiova (EUC)",
issn = "2068-0465",
location = "Sinaia, Romania",
URL = "http://www.cg.tuwien.ac.at/research/publications/2011/Groeller_2011_NSM/",
}
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