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Year : 2014  |  Volume : 13  |  Issue : 2  |  Page : 120-127

99m Tc-Hexamethyl Propyleneamine Oxime Brain Perfusion Single Photon Emission Computed Tomography in Characterization of Dementia: An Initial Experience in Indian Clinical Practice

1 Department of Nuclear Medicine, Medical College, Kolkata, West Bengal, India
2 Brain Imaging Centre, Dakshi Diagnostics Services Private Limited, Lucknow, Uttar Pradesh, India
3 Department of Psychiatry, Medical College, Kolkata, West Bengal, India

Correspondence Address:
Dr. Amburanjan Santra
D-4E, Souraniloy Housing Complex, 1 N Kailash Ghosh Road, Kolkata - 700 008, West Bengal
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1450-1147.139143

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There is a growing health burden in developing countries due to recent trends of increasing incidence of neurodegenerative diseases. To reduce the healthcare cost and effective management of dementia illness, early diagnosis, accurate differentiation and their progression assessment is becoming crucially important. We are utilizing 99m Tc-d, l-hexamethyl propyleneamine oxime (HMPAO) brain perfusion single photon emission computed tomography (SPECT) to characterize dementia on the basis of perfusion patterns and observed significant improvement in their management. Eleven patients (median age of 60 years range of 53-83 years) with clinical suspicion of dementia underwent 99m Tc-HMPAO brain perfusion SPECT. SPECT-computed tomography acquisition done, data are reconstructed, reviewed in three view and further processed in "neurogam" to get voxel based analysis and the comparison with age based normal database and surface mapping. Final diagnosis was done with clinical correlation. Four patients are diagnosed as Alzheimer's disease, two as frontotemporal dementia, one as dementia of Lewy bodies, two as vascular dementia and two as pseudodementia. All imaging findings are well-correlated with clinical background. Brain perfusion SPECT with HMPAO was very helpful to us in characterizing the patients of dementia by its perfusion pattern.

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