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Increased contralateral cerebellar uptake of technetium-99m-HMPAO on ictal brain SPECT

Authors
 Je Hwan Won  ;  Jong Doo Lee  ;  Tae Sub Chung  ;  Chang Yun Park  ;  Byung In Lee 
Citation
 JOURNAL OF NUCLEAR MEDICINE, Vol.37(3) : 426-429, 1996-03 
Journal Title
JOURNAL OF NUCLEAR MEDICINE
ISSN
 0161-5505 
Issue Date
1996-03
MeSH
Adolescent ; Adult ; Brain / diagnostic imaging ; Cerebellum / blood supply ; Cerebellum / diagnostic imaging* ; Cerebrovascular Circulation / physiology* ; Child ; Child, Preschool ; Electroencephalography ; Epilepsy, Complex Partial / diagnostic imaging* ; Epilepsy, Complex Partial / physiopathology ; Female ; Humans ; Incidence ; Male ; Organotechnetium Compounds* ; Oximes* ; Radionuclide Imaging ; Technetium Tc 99m Exametazime
Abstract
Crossed cerebellar diaschisis (CCD) is a well-known brain SPECT finding in stroke patients. Two reports, however, have described supratentorial and contralateral cerebellar hyperperfusion (crossed cerebellar hyperperfusion) on ictal brain SPECT in epileptic patients. The purpose of this study was to assess the usefulness of crossed cerebellar hyperperfusion (CCH) for the detection of epileptic foci on ictal scan.
METHODS:
Twelve patients with complex partial seizures having characteristic clinical, electroencephalographic (EEG) and brain SPECT findings were included. Fifteen to 20 mCi 99mTc-HMPAO were injected intravenously during the seizure period or the aura for the ictal SPECT study. The SPECT findings were visually assessed to determine whether the finding of CCH was valuable in the localization of ictal foci.
RESULTS:
Epileptic foci were found in the right temporal (n = 6), left temporal (n = 4), right occipital (n = 1) and left frontal (n = 1) areas. CCH was observed in 8 (75%) of the 12 patients. In two patients, contralateral cerebellar uptake was more obvious than that in the epileptic foci. In the interictal scans, cerebellar activity, which was increased in ictal period, was equalized in seven of eight patients, while perfusion was diminished in the remaining patient.
CONCLUSION:
CCH is a frequent finding of ictal brain SPECT and may aid in the lateralization of epileptic foci.
Files in This Item:
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Lee, Byung In(이병인)
Lee, Jong Doo(이종두)
Chung, Tae Sub(정태섭)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/183758
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