Intrahemispheric Diaschisis in Subcortical Lesions.
- Author:
Deog Young KIM
1
;
Chang il PARK
;
Young Seok CHOI
;
Yong Won JANG
;
Ja Young MOON
;
Dug Young KIM
Author Information
1. Department of Rehabilitation Medicine and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Korea. dragonorigin@hanmail.net
- Publication Type:Original Article
- Keywords:
Stroke;
Diaschisis;
PET
- MeSH:
Basal Ganglia;
Cerebral Cortex;
Humans;
Incidence;
Internal Capsule;
Occipital Lobe;
Parietal Lobe;
Positron-Emission Tomography;
Rabeprazole;
Stroke;
Thalamus
- From:Journal of the Korean Academy of Rehabilitation Medicine
2002;26(5):495-501
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The aim of this study was to investigate the incidence of intrahemispheric diaschisis in subcortical lesions and relationships between involved structures and intrahemispheric diaschisis using positron emission tomography (PET). METHOD: Thirty stroke patients with unilateral subcortical lesions without cortical structural abnormality were recruited. The findings of [18F]Fluoro-2-Deoxy-D-Glucose PET were interpretated by experienced radiologist. RESULTS: In the lesions around basal ganglia, hypometabolism of ipsilateral whole hemisphere was observed in 8 of 20 patients and ipsilateral parietal, frontal, temporal, occipital lobe was observed in order of incidence. Intrahemispheric diaschisis had a tendency to expand when the centrum semiovale was involved. Crossed cerebellar dia-schisis was observed in 17 of 20 patients. In the lesions around thalamus, hypometabolism of ipsilateral whole hemisphere was observed in 6 of 8 patients, and ipsilateral frontal, temporal, parietal lobe was observed in order of incidence. Intrahemispheric diaschisis had a tendency to expand when the internal capsule was involved. Crossed cerebellar diaschisis was observed in 5 of 8 patients. CONCLUSION: This study shows that intrahemispheric diaschisis was observed in all patients with subcortical lesions without cortical structural abnormality and had a tendency to expand to larger area of the cerebral cortex when the connecting fibers between cortical and subcortical structures were involved.
