Studies were performed following sedation administered in the ward for difficult behaviour.
SPECT studies performed following infusion of technetium
HMPAO with mental stimulation and these of low statical
quality but appear to show mildly but extensive reduced
perfusion to the frontal lobes, particularly along the mesial
surfaces. Elsewhere perfusion appears normal, in particular the posterior cingulate and precuneus hot zones are detected hence
excluding an early Alzehmeir's disease. There is also
hypoperfusion of the caudate heads bilaterally suspicious of
Huntington's chorea, perfusion of the other basal ganglia,
brainstem and cerebellum is normal.
Impression: Overall impression would favour a frontal impairment or
dementia as the cause of the patient's behaviour.