Abstract
INTRODUCTION: In hospitals with heavily utilised MRI scanners, it may not be possible to schedule the patient on 1 particular scanner for all scans and thus this project was carried out to determine if there is any significant difference in the spectroscopy profile between 1.5 T and 3T MRI scanners late year 2021. AIM: To describe the MR spectroscopy profile of normal brain tissue performed on 1.5T and 3T MRI scanners in KK Women’s and Children’s Hospital. METHODS: Three healthy adult volunteers with normal body mass index underwent MRI brain scans after informed consent in this Institute Review Board approved study. MRI brain scans were performed on 1.5T General Electric MRI scanner and 3T Siemens Skyra MRI scanner 1 week apart. NAA/Cr, Cho/Cr and Cho/ NAA values were obtained from the right and left cerebral hemispheres. RESULTS: Average NAA/Cr in the right cerebral hemisphere is 2.06+/-0.10 at 1.5T. Average NAA/Cr in the left cerebral hemisphere is 2.01+/-0.23 at 1.5T. Average NAA/Cr in the right cerebral hemisphere is 1.56+/-0.09 at 3T. Average NAA/Cr in the left cerebral hemisphere is 1.81+/-0.29 at 3T. Average Cho/Cr in the right cerebral hemisphere 1.06+/-0.14 at 1.5T. Average Cho/Cr in the left cerebral hemisphere is 1.11+/-0.22 at 1.5T. Average Cho/Cr in the right cerebral hemisphere is 0.90+/-0.05 at 3T. Average Cho/Cr in the left cerebral hemisphere is 0.95+/-0.27 at 3T. Average Cho/NAA in the right cerebral hemisphere is 0.51+/-0.06 at 1.5T. Average Cho/NAA in the left cerebral hemisphere is 0.58+/-0.00 at 1.5T. Average Cho/NAA in the right cerebral hemisphere is 0.55+/-0.05 at 3T. Average Cho/NAA in the left cerebral hemisphere is 0.52+/-0.07 at 3T. CONCLUSION: MR spectroscopy values obtained from 1.5T and 3T MRI scanners show no significant difference(P>0.05).
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