Automated unsupervised learning-based clustering approach for effective anomaly detection in brain magnetic resonance imaging (MRI)

Vishnuvarthanan Govindaraj; Arunprasath Thiyagarajan; Pallikonda Rajasekaran; Yudong Zhang; Rajesh Krishnasamy

Automated unsupervised learning-based clustering approach for effective anomaly detection in brain magnetic resonance imaging (MRI)

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Author(s): Vishnuvarthanan Govindaraj¹ ; Arunprasath Thiyagarajan¹ ; Pallikonda Rajasekaran² ; Yudong Zhang³ ; Rajesh Krishnasamy⁴
- Affiliations: 1: Department of Biomedical Engineering , Kalasalingam Academy of Research and Education , Krishnankoil, Srivilliputur Post, Virudhunagar District, Tamilnadu , India ;
  2: Department of Electronics and Communication Engineering , Kalasalingam Academy of Research and Education , Krishnankoil, Srivilliputur Post, Virudhunagar District, Tamilnadu , India ;
  3: F26, Informatics Building , School of Informatics, University of Leicester, University Road , Leicester , UK ;
  4: Department of Electrical and Electronics Engineering , Kalasalingam Academy of Research and Education , Krishnankoil, Srivilliputur Post, Virudhunagar District, Tamilnadu , India
Source: Volume 14, Issue 14, December 2020, p. 3516 – 3526
DOI: 10.1049/iet-ipr.2020.0597 , Print ISSN 1751-9659, Online ISSN 1751-9667

Received 21/04/2020, Accepted 13/07/2020, Revised 24/06/2020, Published 11/09/2020

This research study is intended to deliver effective magnetic resonance (MR) brain image segmentation, which is an ambiguous process in the domain of medical image analysis. In general, MR brain image comprises various tissue structures; and an accurate representation of the above-mentioned regions is essential to have a perfect identification of different grades of tumours, and obtaining effective demarcation of different areas in which the oedema portion is widespread. The accurate representation and identification of the abnormal regions in the MR images can be a vital tool for the radiologists and oncologists to proceed further with the treatment processes. This study aims in developing a novel automated approach that combines self-organising map and interval type-2 fuzzy logic clustering, providing ample knowledge to the clinicians in identifying the aberrant regions present in the patient brain. A non-invasive analysis blended with quicker segmentation results are proffered by the proposed methodology and its functioning abilities have been assessed using comparison metrics such as mean-squared error (MSE), peak signal-to-noise ratio (PSNR), processing time duration, and few other standard metrics. The proposed methodology has offered commendable MSE and PSNR values, which are 0.234778 and 54.847 dB, and it can be undeniably utilised for analysing the patient diseases.

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Automated unsupervised learning-based clustering approach for effective anomaly detection in brain magnetic resonance imaging (MRI)

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