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Abstract #4896

A comparative study of volume and surface changes in early onset Parkinson’s Disease compared to age related controls

Sadhana Kumari1, Sakshi Arora1, Shefali Chaudhary2, Priyanka Bhat1, Arpita Jaiswal1, Roopa Rajan3, S Senthil Kumaran1, Leve Joseph Devarajan4, and Achal Kumar Srivastava3
1Departments of NMR and MRI Facility, All India Institute of Medical Sciences, New Delhi, India, 2Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States, 3Departments of Neurology, All India Institute of Medical Sciences, New Delhi, India, 4Departments of Neuroradiology, All India Institute of Medical Sciences, New Delhi, India

Synopsis

Keywords: Parkinson's Disease, Gray Matter, Fractal dimension

Motivation: Early-onset Parkinson’s disease (EOPD) often presents various symptoms, making it difficult to diagnose and understand.

Goal(s): To investigate brain gray matter (GM) atrophy and cortical complexity in EOPD patients, compared to healthy controls using MRI, and to assess the relationship between brain atrophy and clinical variables.

Approach: Study measured GM volume and cortical features in EOPD patients to identify significant changes with respect to controls.

Results: EOPD patients showed significant GM atrophy in regions related to motor and cognitive functions. Decreased cortical complexity in specific brain areas was associated with severe motor impairments and higher medication doses, highlighting the progressive nature of EOPD.

Impact: Distinct patterns of brain atrophy and cortical alterations in EOPD, suggest disruption of folding architecture of the cortex in patients with PD and reduced cortical complexity with LEDD, and could guide more accurate monitoring of treatments.

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