Incidence of Clinically Significant Cerebral Vasospasm in SAH Estimated by Local Cerebral Vasodilatory Capacity Using Acetazolamide-activated 123I-IMP SPECT
نویسندگان
چکیده
منابع مشابه
Regional cerebral blood flow in vascular depression assessed by 123I-IMP SPECT.
OBJECTIVE As the prevalence of white matter hyperintensities detected on T2 weighted MRI scans in patients with late-onset depression is higher than that in nondepressed patients, the concept of"vascular depression" (VDep) was introduced in 1997. However, the pathology of vascular depression has not been clarified. This study examined the differences in functional imaging between vascular and n...
متن کاملEffect of increased intracranial pressure on cerebral vasospasm in SAH.
INTRODUCTION Increased ICP is common and might precipitate cerebral vasospasm (VSP)-induced ischemic events in aneurysmal SAH (ASAH).Our objective was to determine if there is an association between increased ICP and transcranial colour coded Doppler-angiographic VSP (TCCD-A VSP) in relation to delayed neurological deficit (DND) and poor outcome. METHODS A retrospective study was undertaken i...
متن کاملCerebral vasospasm following subarachnoid haemorrhage (SAH) is the leading potentially treatable cause of morbidity and mortality in patients who experience the rupture of an intracranial aneurysm.1,2 A significant predictor of outcome in patients with aneurysmal SAH, cerebral vasospasm
Cerebral vasospasm following subarachnoid haemorrhage (SAH) is the leading potentially treatable cause of morbidity and mortality in patients who experience the rupture of an intracranial aneurysm.1,2 A significant predictor of outcome in patients with aneurysmal SAH, cerebral vasospasm is radiographically present in up to 70% of patients and is clinically evident in 20–30%.1,3 Annually, betwee...
متن کاملEvaluation of cerebral vasoreactivity by SPECT and transcranial Doppler sonography using the acetazolamide test.
rCBF SPECT with 99mTc-HMPAO was performed prospectively in 29 patients (3 controls and 26 stroke patients) as well as TCD studies in 20 patients (3 controls and 17 stroke patients) before and after 1 g i.v. acetazolamide. The sensitivity of rCBF SPECT increased from 62% to 77% after acetazolamide provocation in stroke patients. In patients with a reversible neurological deficit, the sensitivity...
متن کاملQuantitative Measurement of Regional Cerebrovascular Reactivity to Acetazolamide Using 123I-N-Isopropyl-p-Iodoamphetamine Autoradiography with SPECT: Validation Study Using H2O with PET
A simplified technique using 123I-N-isopropyl-p-iodoamphetamine (123I-IMP) autoradiography (ARG) with SPECT has been proposed recently for quantifying regional cerebral blood flow (rCBF). To validate the accuracy of 123I-IMP-ARG for quantifying regional cerebrovascular reactivity (rCVR) to acetazolamide, we compared rCVR determined using 123I-IMP-ARG with that determined using H2O PET. Methods:...
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ژورنال
عنوان ژورنال: Surgery for Cerebral Stroke
سال: 1991
ISSN: 0914-5508
DOI: 10.2335/scs1987.19.2_178