A new reversible ischemic neurologic deficit model in dogs
Küçük Resim Yok
Tarih
2008
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
INT SCIENTIFIC INFORMATION, INC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Background: The aim of this study was to produce an internal carotid artery (ICA) occlusion model in dogs that can be used for studying the effects of surgical revascularization procedures. Material/Methods: After left frontoparictal craniectomy, the ICA and arterial circle of the brain were coagulated and transected, letting the middle cerebral artery be perfused by the contralateral ICA by way of the rostral cerebral artery in five mongrel dogs. Magnetic resonance imaging (MRI) and brain single-photon emission computed tomography (SPECT) were performed during the first 24 to 48 hours and 7 to 10 days after the operation. Paired t and Wilcoxon matched pair tests were used for statistics (p < 0.05). Results: All the dogs had postoperative hemiparesis that returned to normal after 7 to 10 days. Early MRI showed cerebral ischemia in the left parietal cortical area extending to the subcortical white matter, sparing the basal ganglion and the internal capsule. Early brain SPECT demonstrated hypoperfusion corresponding to the same area. This area became significantly restricted to a small cortical area in late MRI and SPECT images (p < 0.05). Conclusions: It is conlcuded that, as symptoms resolved spontaneously, this model can be used as a "reversible ischemic neurological deficit" model for diagnostic imaging and pharmacological studies.
Açıklama
Anahtar Kelimeler
cerebral ischemia, experimental, revascularization, SPECT, MRI
Kaynak
MEDICAL SCIENCE MONITOR
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
14
Sayı
10
