Email this article Visualization of Magnetization Transfer Effect in Polyethylene Glycol Impregnated Waterlogged Wood
- Authors: Kanazawa Y.1,2, Yamada T.3, Kido A.1, Fujimoto K.1, Takakura K.1, Hayashi H.2, Fushimi Y.1, Kozawa S.4, Koizumi K.4, Okuni M.3, Ueda N.3, Togashi K.1
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Affiliations:
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
- Institute of Biomedical Sciences, Tokushima University Graduate School
- Gangouji Institute for Research of Cultural Property
- Clinical Radiology Service, Kyoto University Hospital
- Issue: Vol 48, No 2 (2017)
- Pages: 125-134
- Section: Original Paper
- URL: https://journals.rcsi.science/0937-9347/article/view/247625
- DOI: https://doi.org/10.1007/s00723-016-0850-0
- ID: 247625
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Abstract
To visualize the condition of impregnation of polyethylene glycol (PEG) in waterlogged wood, we demonstrated magnetic transfer (MT) magnetic resonance imaging (MRI) through a series of process of PEG impregnation. Three different samples were examined; reference wood, 10 cm cut wood, and 5 cm cut wood. During this study, the upper section sample was kept immersed in water, for the middle and lower sections the concentration of PEG solution was changed at 20 wt% intervals from 20 to 100 wt%. The impregnated periods of each PEG solution concentration were 14 days. Then, MR imaging were performed with/without MT pulse. The MTR value for both 10 cm- and 5 cm-samples were shown to decrease at 20 wt% PEG at peak concentration. When the sample volume was large, e.g., 10 cm-sample, the MTR value decreased to 100 wt% PEG concentration. In contrast, when a sample volume was small, e.g., 5 cm-sample, MTR value decreased to 60 wt% PEG concentration. In conclusion, MTR analysis makes it possible to nondestructively visualize and evaluate the inner condition concerning the PEG impregnation method for waterlogged wood.
About the authors
Yuki Kanazawa
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University; Institute of Biomedical Sciences, Tokushima University Graduate School
Author for correspondence.
Email: yk@tokushima-u.ac.jp
ORCID iD: 0000-0002-7960-8582
Japan, Sakyo-ku, Kyoto, 606-8507; 3-18-15, Kuramoto-cho, Toksuhima, Tokushima, 770-8503
Tetsuya Yamada
Gangouji Institute for Research of Cultural Property
Email: yk@tokushima-u.ac.jp
Japan, 11, Chuin-cho, Nara, Nara, 630-8392
Aki Kido
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
Email: yk@tokushima-u.ac.jp
Japan, Sakyo-ku, Kyoto, 606-8507
Koji Fujimoto
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
Email: yk@tokushima-u.ac.jp
Japan, Sakyo-ku, Kyoto, 606-8507
Kyoko Takakura
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
Email: yk@tokushima-u.ac.jp
Japan, Sakyo-ku, Kyoto, 606-8507
Hiroaki Hayashi
Institute of Biomedical Sciences, Tokushima University Graduate School
Email: yk@tokushima-u.ac.jp
Japan, 3-18-15, Kuramoto-cho, Toksuhima, Tokushima, 770-8503
Yasutaka Fushimi
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
Email: yk@tokushima-u.ac.jp
Japan, Sakyo-ku, Kyoto, 606-8507
Satoshi Kozawa
Clinical Radiology Service, Kyoto University Hospital
Email: yk@tokushima-u.ac.jp
Japan, 54 Kawaharacho, Syogoin, Sakyu-ku, Kyoto, 606-8507
Koji Koizumi
Clinical Radiology Service, Kyoto University Hospital
Email: yk@tokushima-u.ac.jp
Japan, 54 Kawaharacho, Syogoin, Sakyu-ku, Kyoto, 606-8507
Makiko Okuni
Gangouji Institute for Research of Cultural Property
Email: yk@tokushima-u.ac.jp
Japan, 11, Chuin-cho, Nara, Nara, 630-8392
Naomi Ueda
Gangouji Institute for Research of Cultural Property
Email: yk@tokushima-u.ac.jp
Japan, 11, Chuin-cho, Nara, Nara, 630-8392
Kaori Togashi
Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University
Email: yk@tokushima-u.ac.jp
Japan, Sakyo-ku, Kyoto, 606-8507
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