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Pituitary Gland Assessment by MR Volumetry in the Normal Indian Adolescent Population
International Journal of Medical Imaging
Volume 3, Issue 6, November 2015, Pages: 105-109
Received: Oct. 10, 2015; Accepted: Oct. 24, 2015; Published: Nov. 3, 2015
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Deepti Naik, Department of Radiodiagnosis and Imaging, M.S. Ramaiah Medical College & Hospitals, Bangalore, India
Prashanth Reddy D., Department of Radiodiagnosis and Imaging, M.S. Ramaiah Medical College & Hospitals, Bangalore, India
M. G. Srinath, Department of Radiodiagnosis and Imaging, M.S. Ramaiah Medical College & Hospitals, Bangalore, India
A. Ashok Kumar, Department of Radiodiagnosis and Imaging, M.S. Ramaiah Medical College & Hospitals, Bangalore, India
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The purpose of the study was to analyze the shapes and volumes of the pituitary gland as seen on magnetic resonance imaging using two different methods in the adolescent age group (10 to 19 years). The study was designed as a retrospective review. MRI brain was performed in 99 patients and pituitary volumes were calculated using voxel counting method and the ellipsoid formula. Pituitary shape was graded from one to five based on the surface curvature. The volume, height and shape of the pituitary in male and female patients were analyzed. The average pituitary volume by voxel counting method was found to be 0.54 cc ± 0.16 cc in both sexes, 0.51 ± 0.13 cc in males and 0.56 ± 0.19 cc in females. The average pituitary volume by ROI was found to be 0.42 cc ± 0.16 cc in both sexes, 0.40cc ± 0.15 cc in males and 0.43 cc ± 0.17 cc in females. The average pituitary height was 0.58 cm ± 0.15 cm in both sexes, 0.55 cm ± 0.16 cm in males and 0.60 cm ± 0.15 cm in females. The correlation coefficients between the two methods for concave shapes, for flat shapes and for convex shapes were 0.73, 0.76 and 0.60 with p values were 0.0007, 0.0007 and 0.0002 respectively. The average volume of the pituitary gland was 6% greater in females. There was a gradual increase in volume and height of pituitary gland with age. The two methods showed positive correlation which was statistically significant.
Pituitary Gland Assessment, Volumetry, Adolescent
To cite this article
Deepti Naik, Prashanth Reddy D., M. G. Srinath, A. Ashok Kumar, Pituitary Gland Assessment by MR Volumetry in the Normal Indian Adolescent Population, International Journal of Medical Imaging. Vol. 3, No. 6, 2015, pp. 105-109. doi: 10.11648/j.ijmi.20150306.11
Copyright © 2015 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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