Title
Classification of normal and abnormal brain MRI slices using Gabor texture and support vector machines.
Abstract
In computational and clinical environments, autoclassification of brain magnetic resonance image (MRI) slices as normal and abnormal is challenging. The purpose of this study is to investigate the computer vision and machine learning methods for classification of brain magnetic resonance (MR) slices. In routine health-care units, MR scanners are being used to generate a massive number of brain slices, underlying the anatomical details. Pathological assessment from this medical data is being carried out manually by the radiologists or neuro-oncologists. It is almost impossible to analyze each slice manually due to the large amount of data produced by MRI devices at each moment. Irrefutably, if an automated protocol performing this task is executed, not only the radiologist will be assisted, but a better pathological assessment process can also be expected. Numerous schemes have been reported to address the issue of autoclassification of brain MRI slices as normal and abnormal, but accuracy, robustness and optimization are still an open issue. The proposed method, using Gabor filter and support vector machines, classifies brain MRI slices as normal or abnormal. Accuracy, sensitivity, specificity and ROC-curve have been used as standard quantitative measures to evaluate the proposed algorithm. To the best of our knowledge, this is the first study in which experiments have been performed on Whole Brain Atlas-Harvard Medical School (HMS) dataset, achieving an accuracy of 97.5%, sensitivity of 99%, specificity of 92% and ROC-curve as 0.99. To test the robustness against medical traits based on ethnicity and to achieve optimization, a locally developed dataset has also been used for experiments and remarkable results with accuracy (96.5%), sensitivity (98%), specificity (92%) and ROC-curve (0.97) were achieved. Comparison with state-of-the-art methods proved the overall efficacy of the proposed method.
Year
DOI
Venue
2018
10.1007/s11760-017-1182-8
Signal, Image and Video Processing
Keywords
Field
DocType
Brain, MRI, Classification, Normal and abnormal brain slices
Computer vision,Brain mri,Pattern recognition,Support vector machine,Robustness (computer science),Gabor filter,Artificial intelligence,Abnormal brain MRI,Mathematics,Magnetic resonance imaging
Journal
Volume
Issue
ISSN
12
3
1863-1703
Citations 
PageRank 
References 
2
0.37
14
Authors
6
Name
Order
Citations
PageRank
Ghulam Gilanie171.50
Usama Ijaz Bajwa2135.04
Mustansar Mahmood Waraich351.79
Zulfiqar Habib49014.60
Hafeez-Ullah570.83
Muhammad Nasir631.09