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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Hae Yu (Gamma Knife Center, Haeundae Paik Hospital, Inje University College of Medicine) Lee, Sun-Il (Gamma Knife Center, Haeundae Paik Hospital, Inje University College of Medicine) Jin, Seong Jin (Gamma Knife Center, Haeundae Paik Hospital, Inje University College of Medicine) Jin, Sung-Chul (Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine) Kim, Jung Soo (Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine) Jeon, Kyoung Dong (Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제55권 제3호
발행연도
2014.1
수록면
136 - 141 (6page)

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Objective : The aims of this study are to identify interpersonal differences in defining coordinates and to figure out the degree of distortion of the MRI and compare the accuracy between CT, 1.5-tesla (T) and 3.0T MRI. Methods : We compared coordinates in the CT images defined by 2 neurosurgeons. We also calculated the errors of 1.5T MRI and those of 3.0T. We compared the errors of the 1.5T with those of the 3.0T. In addition, we compared the errors in each sequence and in each axis. Results : The mean difference in the CT images between the two neurosurgeons was $0.48{\pm}0.22mm$. The mean errors of the 1.5T were $1.55{\pm}0.48mm$ (T1), $0.75{\pm}0.38$ (T2), and $1.07{\pm}0.57$ (FLAIR) and those of the 3.0T were $2.35{\pm}0.53$ (T1), $2.18{\pm}0.76$ (T2), and $2.16{\pm}0.77$ (FLAIR). The smallest mean errors out of all the axes were in the x axis : 0.28-0.34 (1.5T) and 0.31-0.52 (3.0T). The smallest errors out of all the MRI sequences were in the T2 : 0.29-0.58 (1.5T) and 0.31-1.85 (3.0T). Conclusion : There was no interpersonal difference in running the Gamma $Plan^{(R)}$ to define coordinates. The errors of the 3.0T were greater than those of the 1.5T, and these errors were not of an acceptable level. The x coordinate error was the smallest and the z coordinate error was the greatest regardless of the MRI sequence. The T2 sequence was the most accurate sequence.

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