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Cerebral Blood Flow Imaging with Technetium-99m-HMPAO SPECT in a Patient with Chronic Subdural Hematoma: Relationship with Neuropsychological Test

Departments of Nuclear Medicine, Neurology and Neurosurgery, Osaka National Hospital, Osaka, Japan

Correspondence: For reprints contact: Yoshinari Isaka, MD, Department of Nuclear Medicine, Osaka National Hospital, Hoenzaka, 2-1-14, Chuo-ku, Osaka 540, Japan.

ABSTRACT

We report the relationship between cerebral blood flow (CBF) and neuropsychologic tests in a patient with a chronic subdural hematoma suffering from severe dementia and left hemiparesis. Regional CBF was quantified using ^99mTc-HMPAO SPECT and ¹³³Xe-CBF. CBF-SPECT could detect the hematoma which was isodense by CT scan and the neuropsychological test improved remarkably with the increase in CBF after surgery. We conclude that if there is a strong clinical suspicion of subdural hematoma and CT scan is not diagnostic then CBF-SPECT may be valuable in localizing the hematoma and monitoring the effect of operation.