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7T 트랙밀도영상을 이용한 우측 뇌의 등쪽섬유다발 분할 및 분석

Segmentation and analysis of right brain dorsal fiber complex using 7T TDI

초록/요약

Early experimental studies in human have shown that the superior longitudinal fasciculus (SLF), a major intrahemispheric fiber tract, is actually composed of four separate components using in vivo diffusion tensor magnetic resonance imaging (DT-MRI). As the development of Track Density Imaging (TDI) improves image resolution, SLF and AF can be subdivided more precisely. In this study we refined dorsal fiber complex (SLF, AF) on the right brain and analyzed the connectivity using 7T TDI data. The results of our study demonstrated that the nine subdivisions and four groups (Supra SLF, SLF, AF medial, AF lateral) could be identified and their functional identities have been interpreted.

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목차

-Abstract- i
TABLE OF CONTENTS.. ii
LIST OF FIGURES iv
LIST OF TABLES. v
ABBREVIATION. vi
Ⅰ. INTRODUCTION 1
Ⅱ. Related Theory 4
A. Fiber 4
B. Function of brain. 6
C. Principe of fiber tracking. 7
D. Brodmann area. 9
III. Materials and methods. 10
A. Data aquisition. 10
B. Segmentation. 12
C. Fiber tracking region of interest. 13
Ⅳ. Result. 15
A. Supra SLF. 16
B. SLF 18
1. SLFI. 18
2. SLFII. 20
3. SLFIII 22
4. SLFIV 24
C. AF medial. 26
1. AFI. 26
2. AFII. 28
3. AFIII. 30
D. AF lateral. 32
Ⅴ. Discussion. 34
ⅤI. Conclusion. 36
REFERENCES. 37

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