Volumetric Comparison of Fraction Anisotropy Using Diffusion Tensor Imaging for Corona Radiata in Patients with Intracerebral Hemorrhage

Lee, Gun Seok; Min, Kyung Soo; Lee, Mou Seop; Kim, Young Gyu; Kim, Dong Ho; Park, Young Seok

Original article

Journal of the Korean Society of Stereotactic and Functional Neurosurgery 2015;11(2):90-94.
Published online September 30, 2015.

Volumetric Comparison of Fraction Anisotropy Using Diffusion Tensor Imaging for Corona Radiata in Patients with Intracerebral Hemorrhage

Gun Seok Lee, Kyung Soo Min, Mou Seop Lee, Young Gyu Kim, Dong Ho Kim, Young Seok Park

Department of Neurosurgery, Chungbuk National University Hospital, Chungbuk National University, College of Medicine, Cheongju, Korea

Abstract

Objective
In injury of the corona radiata of intracerebral hemorrhage (ICH), motor impairment and improvement can be predicted. This study was conducted for comparison of fractional anisotropy (FA) of the corona radiata depending on volume of ICH using diffusion tensor imaging (DTI). Materials and Methods: Twelve patients with cerebral hemorrhage located around the corona radiata in the brain underwent DTI within 6 months of onset. The FA of the corona radiata located in the posterior internal capsule was calculated and compared depending on intracerebral volumes. FA was compared between healthy and unhealthy side and motor improvements were analyzed. FA ratio was compared between Group 1 (Group1, volume of ICH＜30mL) and Group 2 (Group 2, volume of ICH≥30mL).
Results
Lower FA was found in Group 2 than in Group 1. Negative correlation was observed between FA ratio and volume of hematoma. Motor function also showed good correlation with FA anisotropy of corona radiata located in the posterior internal capsule.
Conclusion
Large ICH has a lower FA ratio. Negative correlation was observed between FA ratio and volume of hematoma. The FA of the corona radiata located in the posterior internal capsule showed good correlation with motor function and ICH volume.

Key Words: Intracerebral hemorrhage, Diffusion tensor imaging, Corticospinal tract, Corona radiate, Fractional anisotropy.