Iterative threshold segmentation for PET target volume delineation

The purpose of this work is to create a rigorous method of segmenting PET images using an automated iterative technique. To this end a phantom study employing spherical targets was used to determine local (slice specific) threshold levels which produce correct cross-sections based on the contrast be...

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Bibliographic Details
Published in:	Medical physics (Lancaster) Vol. 34; no. 4; pp. 1253 - 1265
Main Authors:	Drever, Laura, Roa, Wilson, McEwan, Alexander, Robinson, Don
Format:	Journal Article
Language:	English
Published:	United States American Association of Physicists in Medicine 01.04.2007
Subjects:	ACCURACY ALGORITHMS Ancillary equipment Artificial Intelligence Cancer Computed tomography CONCENTRATION RATIO Contrast sensitivity CROSS SECTIONS Humans Image analysis Image Enhancement - methods Image Interpretation, Computer-Assisted - methods IMAGE PROCESSING Image quality image resolution image segmentation Imaging, Three-Dimensional - methods iterative ITERATIVE METHODS Medical image contrast Medical image noise medical image processing Medical imaging Numerical Analysis, Computer-Assisted Numerical approximation and analysis Pattern Recognition, Automated - methods PET PHANTOMS Phantoms, Imaging POSITRON COMPUTED TOMOGRAPHY positron emission tomography Positron emission tomography (PET) Positron-Emission Tomography - instrumentation Positron-Emission Tomography - methods Radiation therapy RADIOLOGY AND NUCLEAR MEDICINE Reproducibility of Results Sensitivity and Specificity target volume threshold segmentation threshold segmentation iterative target volume PET
ISSN:	0094-2405, 2473-4209
Online Access:	Get full text
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