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AJNR - American Journal of Neuroradiology

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Prognostic Value of Subacute Crossed Cerebellar Diaschisis: Single-Photon Emission CT Study in Patients with Middle Cerebral Artery Territory Infarct

Masashi Takasawa^a, Manabu Watanabe^a, Shiro Yamamoto^a, Taku Hoshi^a, Tsutomu Sasaki^a, Kazuo Hashikawa^b, Masayasu Matsumoto^c and Naokazu Kinoshita^a

^a Division of Strokology, Departments of Cardiovascular Medicine and Clinical Research, Osaka-Minami National Hospital, Japan
^b Department of Nuclear Medicine, Osaka University Graduate School of Medicine, Japan
^c Division of Strokology, Department of Internal Medicine and Therapeutics, Osaka University Graduate School of Medicine, Japan

View larger version (120K): [in a new window]   FIG 1. ROIs on a SPECT image of the cerebellum.

View larger version (49K): [in a new window]   FIG 2. SPECT images obtained in patient 1 show severe cerebellar hypoperfusion (arrows) in both the acute (top row) and subacute (middle row) stages. This patient had SSS scores of 13 at admission and 38 at 60 days after onset. MR images (bottom row) obtained at 32 days show a large infarct in the left hemisphere.

View larger version (49K): [in a new window]   FIG 3. SPECT images obtained in patient 13 show cerebellar hypoperfusion (arrows) in both the acute (top row) and subacute (middle row) stages. This patient had SSS scores of 22 at admission and 55 at 60 days after onset. MR images (bottom row) obtained at 58 days show an infarct in the right basal ganglia and frontal lobe.

View larger version (18K): [in a new window]   FIG 4. Relationships between the AI in the subacute stage and neurologic state. No significant (N.S.) correlations between the AI in the subacute stage and SSS score at admission were found (top left). AI in the subacute stage was significantly associated with the final SSS score at 60 days (top right), the final BI score at 60 days (bottom left), and the RI (bottom right), as the results of the nonparametric Spearman rank test indicate.