Signal Void Dots on T2-weighted Brain MR Image: Correlation with Hypertensive Brain lesions.
10.3348/jkrs.1998.39.4.647
- Author:
Dong Soo YOO
1
;
Chun Keun JEONG
;
Sang Joon KIM
;
Young Seok LEE
;
Jae Il KIM
;
Ho Jang KWON
Author Information
1. Department of Radiology, Dankook University College of Medicine.
- Publication Type:Original Article
- Keywords:
Brain, hemorrhage;
Brain, MR
- MeSH:
Basal Ganglia;
Brain*;
Cerebral Hemorrhage;
Humans;
Hypertension;
Infarction;
Thalamus
- From:Journal of the Korean Radiological Society
1998;39(4):647-652
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the relationship of signal void dots seen on T2-weighted images with hypertension,hypertensive intracerebral hemorrhage and infarction. MATERIALS AND METHODS: MR images of 73 consecutive patientswith signal void dots on T2-weighted images were reviewed. Seventy-three randomly selected age-matched patientswithout signal void dot lesion were also reviewed. We evaluated 1) the location and number of signal void dots; 2)the frequency of hypertension among patients and controls; 3) the frequency of associated brain parenchymalabnormalities (hypertensive intracerebral hemorrhage, microangiopathy and infarction) in both groups; 4) therelationship between the number of signal void dots and associated brain lesions in the patient group. RESULTS: Signal void dots numbered 1-50(average, 12), and were found mostly in the thalamus, basal ganglia, and the pons.Hypertension(97.1%), hypertensive ICH(43.8%) and microangiopathy(96%) were frequent in patients with signal voiddots, the number of which correlated with the severity of microangiopathy. Infarction(13.7%), however, did notcorrelate with dots. CONCLUSION: Signal void dots correlate closely with hypertension, hypertensive ICH, andmicroangiopathy. They may indicate hypertensive brain change.
