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Updated: May 4, 2026

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
Study on a method to improve T1 image contrast by the subtraction technique for 3.0 T brain examination
Ham-Gyum Kim1, Yeong-Cheol Heo2, Jae-Hwan Cho3
1Department of Radiological Technology, Ansan College, Republic of Korea.
Abstract:
The purpose of this study is to describe the enhanced gray/white brain matter delineation achieved by a novel subtraction technique. We subtracted T2-weighted from T1-weighted images. The resulting images were analyzed for contrast-to-noise ratio and reader preference. Our results show superior outcomes for the subtracted images. This improvement could be used to better identify tumor enhancement or cortical dysplasia.
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