RT Journal Article SR Electronic T1 Regional cerebral blood flow by SPECT imaging in Sturge-Weber disease: an aid for diagnosis. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1402 OP 1409 DO 10.1136/jnnp.52.12.1402 VO 52 IS 12 A1 Chiron, C A1 Raynaud, C A1 Tzourio, N A1 Diebler, C A1 Dulac, O A1 Zilbovicius, M A1 Syrota, A YR 1989 UL http://jnnp.bmj.com/content/52/12/1402.abstract AB Regional cerebral blood flow (rCBF) was studied using SPECT (single photon emission computed tomography) with 133-Xenon in 13 patients with confirmed Sturge-Weber disease, aged 9 months to 18 years. CT scan, performed at the same time, showed evident cerebral angioma in 10 but not in three. A marked hypoperfused area was found in all patients, ranging from -32% to -72% and of the same location as the CT signs. The hypoperfusion seems to result from post ictal phenomenon as well as from chronic ischaemia. SPECT imaging is therefore a sensitive method for visualising intracranial angioma in Sturge-Weber disease and it provides an aid for diagnosis when a CT scan is not reliable.