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Automatic segmentation of cerebral hemispheres in MR human head scans
Author(s) -
Kalavathi P.,
Surya Prasath V. B.
Publication year - 2016
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/ima.22152
Subject(s) - coronal plane , segmentation , sagittal plane , human brain , artificial intelligence , magnetic resonance imaging , brain asymmetry , computer science , human head , computer vision , nuclear medicine , anatomy , medicine , lateralization of brain function , physics , radiology , psychiatry , acoustics , absorption (acoustics) , audiology
Automatic segmentation of cerebral hemispheres in magnetic resonance (MR) brain images help to quantify the brain asymmetry and correct several MR brain deformities. The detection of mid‐sagittal plane (MSP) in human brain image is necessary to segment the hemispheres for both operator‐based and automated brain image asymmetric analysis. In this article, a computationally simple and accurate technique to detect MSP in MRI human head scans using curve fitting is developed. The left and right hemispheres are segmented based on the detected MSP. The accuracy of the MSP is evaluated by comparing the segmented left and right hemispheres against the manually segmented ones. Experimental results using 78 volumes of T1, T2 and PD‐weighted MRI brain images show that the proposed method has accurately segmented the cerebral hemispheres based on the detected MSP in axial and coronal orientations of normal and pathological brain images.