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A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging

Breast cancer continues to be a significant public health problem in the world. Early detection is the key for improving breast cancer prognosis. In this way, magnetic resonance imaging (MRI) is emerging as a powerful tool for the detection of breast cancer. Breast MRI presently has two major challe...

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Detalles Bibliográficos
Autores principales: Salehi, Leila, Azmi, Reza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4187355/
https://www.ncbi.nlm.nih.gov/pubmed/25298929
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author Salehi, Leila
Azmi, Reza
author_facet Salehi, Leila
Azmi, Reza
author_sort Salehi, Leila
collection PubMed
description Breast cancer continues to be a significant public health problem in the world. Early detection is the key for improving breast cancer prognosis. In this way, magnetic resonance imaging (MRI) is emerging as a powerful tool for the detection of breast cancer. Breast MRI presently has two major challenges. First, its specificity is relatively poor, and it detects many false positives (FPs). Second, the method involves acquiring several high-resolution image volumes before, during, and after the injection of a contrast agent. The large volume of data makes the task of interpretation by the radiologist both complex and time-consuming. These challenges have led to the development of the computer-aided detection systems to improve the efficiency and accuracy of the interpretation process. Detection of suspicious regions of interests (ROIs) is a critical preprocessing step in dynamic contrast-enhanced (DCE)-MRI data evaluation. In this regard, this paper introduces a new automatic method to detect the suspicious ROIs for breast DCE-MRI based on region growing. The results indicate that the proposed method is thoroughly able to identify suspicious regions (accuracy of 75.39 ± 3.37 on PIDER breast MRI dataset). Furthermore, the FP per image in this method is averagely 7.92, which shows considerable improvement comparing to other methods like ROI hunter.
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spelling pubmed-41873552014-10-08 A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging Salehi, Leila Azmi, Reza J Med Signals Sens Original Article Breast cancer continues to be a significant public health problem in the world. Early detection is the key for improving breast cancer prognosis. In this way, magnetic resonance imaging (MRI) is emerging as a powerful tool for the detection of breast cancer. Breast MRI presently has two major challenges. First, its specificity is relatively poor, and it detects many false positives (FPs). Second, the method involves acquiring several high-resolution image volumes before, during, and after the injection of a contrast agent. The large volume of data makes the task of interpretation by the radiologist both complex and time-consuming. These challenges have led to the development of the computer-aided detection systems to improve the efficiency and accuracy of the interpretation process. Detection of suspicious regions of interests (ROIs) is a critical preprocessing step in dynamic contrast-enhanced (DCE)-MRI data evaluation. In this regard, this paper introduces a new automatic method to detect the suspicious ROIs for breast DCE-MRI based on region growing. The results indicate that the proposed method is thoroughly able to identify suspicious regions (accuracy of 75.39 ± 3.37 on PIDER breast MRI dataset). Furthermore, the FP per image in this method is averagely 7.92, which shows considerable improvement comparing to other methods like ROI hunter. Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC4187355/ /pubmed/25298929 Text en Copyright: © Journal of Medical Signals & Sensors http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Salehi, Leila
Azmi, Reza
A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title_full A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title_fullStr A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title_full_unstemmed A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title_short A Novel Method Based on Learning Automata for Automatic Lesion Detection in Breast Magnetic Resonance Imaging
title_sort novel method based on learning automata for automatic lesion detection in breast magnetic resonance imaging
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4187355/
https://www.ncbi.nlm.nih.gov/pubmed/25298929
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