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Brain perfusion SPECT in patients with corticobasal degeneration: analysis using statistical parametric mapping
A K M Moinul Hossain1, Yuji Murata, Lin Zhang
1Department of Radiology, Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
Summary
Corticobasal degeneration (CBD) significantly reduces brain perfusion across widespread brain regions, including the frontal, parietal, and temporal cortices, basal ganglia, thalamus, and pontocerebellar areas, as shown by SPECT imaging.
Area of Science:
- Neurology
- Neuroimaging
Background:
- Corticobasal degeneration (CBD) is a progressive neurodegenerative disorder.
- Understanding brain perfusion changes is crucial for diagnosing and managing CBD.
Purpose of the Study:
- To characterize brain perfusion abnormalities in corticobasal degeneration (CBD) patients.
- To compare brain perfusion in CBD patients with healthy controls using advanced neuroimaging techniques.
Main Methods:
- Utilized single photon emission computed tomography (SPECT) with (99m)Tc-ethyl cysteinate dimer (ECD) in 13 CBD patients and 10 healthy volunteers.
- Employed statistical parametric mapping (SPM) for analyzing regional cerebral blood flow (rCBF) using both absolute and normalized data.
- Noninvasive regional cerebral blood flow (rCBF) measurements were performed using a graphic analysis method.
Main Results:
- CBD patients exhibited significantly reduced absolute regional cerebral blood flow (rCBF) in extensive brain areas compared to controls.
- Affected regions included the frontal, parietal, and temporal cortices, basal ganglia, thalamus, and pontocerebellar regions.
- The observed hypoperfusion in CBD was more widespread than previously documented.
Conclusions:
- Brain perfusion is diffusely impaired in corticobasal degeneration (CBD).
- SPECT and SPM analysis reveal extensive hypoperfusion patterns in CBD patients.
- These findings highlight the widespread nature of neurovascular dysfunction in CBD.