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Algorithms 2010, 3(2), 125-144; doi:10.3390/a3020125

Recognition of Pulmonary Nodules in Thoracic CT Scans Using 3-D Deformable Object Models of Different Classes

1
University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Japan
2
Chukyo University, 101 Kaitsu, Toyota, Japan
3
Kyoto University, 53 Sakyo, Kyoto, Japan
*
Author to whom correspondence should be addressed.
Received: 1 February 2010 / Revised: 16 February 2010 / Accepted: 22 March 2010 / Published: 31 March 2010
(This article belongs to the Special Issue Machine Learning for Medical Imaging)
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Abstract

The present paper describes a novel recognition method of pulmonary nodules (i.e., cancer candidates) in thoracic computed tomography scans by use of three-dimensional spherical and cylindrical models that represent nodules and blood vessels, respectively. The anatomical validity of these object models and their fidelity to computed tomography scans are evaluated based on the Bayes theorem. The nodule recognition is employed by the maximum a posteriori estimation. The proposed method is applied to 26 actual computed tomography scans, and experimental results are shown.
Keywords: recognition of pulmonary nodules; thoracic computed tomography scans; three-dimensional deformable object models; Bayes theorem; maximum a posteriori estimation recognition of pulmonary nodules; thoracic computed tomography scans; three-dimensional deformable object models; Bayes theorem; maximum a posteriori estimation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Takizawa, H.; Yamamoto, S.; Shiina, T. Recognition of Pulmonary Nodules in Thoracic CT Scans Using 3-D Deformable Object Models of Different Classes. Algorithms 2010, 3, 125-144.

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