The Effect of the Surroundings to the Apparent Diffusion Coefficient on Diffusion Weighted Imaging
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- Yamatani Yuya
- Central Division of Radiology, Nara Medeical University Hospital
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- Doi Tsukasa
- Division of Radiology, Department of Medical Technology, Osaka University Hospital
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- Shimizu Kozo
- Central Division of Radiology, Nara Medeical University Hospital
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- Nogi Akihiro
- Central Division of Radiology, Nara Medeical University Hospital
Bibliographic Information
- Other Title
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- 拡散強調画像における測定対象周囲の環境変化がみかけの拡散係数に与える影響
- カクサン キョウチョウ ガゾウ ニ オケル ソクテイ タイショウ シュウイ ノ カンキョウ ヘンカ ガ ミカケ ノ カクサン ケイスウ ニ アタエル エイキョウ
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Abstract
Diffusion weighted imaging (DWI) is now widely used in magnetic resonance (MR) imaging of the head and body. Moreover, the Apparent diffusion coefficient (ADC) value is often used for the differential diagnosis of the tumor. However, the effect of the surroundings on the ADC value has not been reported. In this study, we used the phantom completely sealed up to measure the change in the ADC value depending on the surroundings material. The results showed that the ADC value decreased according to the density of superparamagnetic iron oxide (SPIO) in the surroundings. Clinically, hemorrhage or iron deposit around the tumor may affect the ADC value of the tumor and result in under-estimation.
Journal
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- Japanese Journal of Radiological Technology
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Japanese Journal of Radiological Technology 66 (10), 1267-1274, 2010
Japanese Society of Radiological Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390001206361711616
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- NII Article ID
- 40017370864
- 130000423137
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- NII Book ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL BIB ID
- 10886915
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed