Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study.

Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Research Abstract Details 

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Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Abstract Text:

Makoto Sasaki,Masahiro Ida,Kei Yamada,Yoshiyuki Watanabe,Mieko Matsui,Makoto Sasaki,Masahiro Ida,Kei Yamada,Yoshiyuki Watanabe,Mieko Matsui,

Purpose: To establish a practical method that uses concurrent b0 images to standardize the display conditions for diffusion-weighted images (DWI) that vary among institutions and interpreters. Method: Using identical parameters, we obtained DWI for 12 healthy volunteers at 4 institutions using 4 MRI scanners from 3 vendors. Three operators manually set the window width for the images equal to the signal intensity of the normal-appearing thalamus on b0 images and set the window level at half and then exported the images to 8-bit gray-scale images. We calculated the mean pixel values of the brain objects in the images and examined the variation among scanners, operators, and subjects. Result: Following our method, the DWI of the 12 subjects obtained using the 4 different scanners had nearly identical contrast and brightness. The mean pixel values of the brain on the exported images among the operators and subjects were not significantly different, but we found a slight, significant difference among the scanners. Conclusion: Determining DWI display conditions by using b0 images is a simple and practical method to standardize window width and level for evaluating diffusion abnormalities and decreasing variation among institutions and operators.

Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Publishing Authors By Initials

M Sasaki,M Ida,K Yamada,Y Watanabe,M Matsui,M Sasaki,M Ida,K Yamada,Y Watanabe,M Matsui,

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Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Magnetic resonance in medical sciences : MRMS : an

VOLUME: 6

Page Numbers: 133-7

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ISSN: 1347-3182

DAY: 26

MONTH: 11

YEAR: 2007

Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study.

AFFILIATION: Department of Radiology, Iwate Medical University School of Medicine.

Country: Japan

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MEDLINETA: Magn Reson Med Sci

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