Efficiency of 3-Tesla MRI in Stereotactic radiosurgery and functional neurosurgeryKeywords: magnetic resonance imaging, gamma knife, image guidance, functional, techniqueInteractive Manuscript
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What is the background behind your study?
Higher field strength magnets are being used in clinical practice.
What is the purpose of your study?
The aims of this study are to compare the distortions in CT, 1.5T MRI and 3.0T MRI in Gamma Plan workstation and to consider the possibility of 3.0T MRI use in radiosurgery and other functional neurosurgery.
Describe your patient group.
This question was not answered by the author
Describe what you did.
We performed CT, 1.5T MRI and 3.0T MRI using phantom as same usual manners. We assumed CT image had no distortion. And then we measured the coordinates in each image using gamma plan workstation and compared the difference of coordinates in 3-dimensional space between the images. In order to identify the interpersonal difference, the data were obtained by 3 physician or doctors.
Describe your main findings.
1.5T MRI showed some distortion but the difference was less than 1.0mm in overall coordinates in 3-dimensional space. 3.0T MRI showed similar distortion in central area, but distortion was getting bigger in peripheral area.
Describe the main limitation of this study.
This was a retrospective comparison study.
Describe your main conclusion.
3.0T MRI could be used in limited situation with acceptable error and high quality image.
Describe the importance of your findings and how they can be used by others.
But the distortion could be corrected technically in near future.
Higher field strength magnets are being used in clinical practice.
The aims of this study are to compare the distortions in CT, 1.5T MRI and 3.0T MRI in Gamma Plan workstation and to consider the possibility of 3.0T MRI use in radiosurgery and other functional neurosurgery.
We performed CT, 1.5T MRI and 3.0T MRI using phantom as same usual manners. We assumed CT image had no distortion. And then we measured the coordinates in each image using gamma plan workstation and compared the difference of coordinates in 3-dimensional space between the images. In order to identify the interpersonal difference, the data were obtained by 3 physician or doctors.
1.5T MRI showed some distortion but the difference was less than 1.0mm in overall coordinates in 3-dimensional space. 3.0T MRI showed similar distortion in central area, but distortion was getting bigger in peripheral area.
This was a retrospective comparison study.
3.0T MRI could be used in limited situation with acceptable error and high quality image.
But the distortion could be corrected technically in near future.
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