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http://dx.doi.org/10.4283/JMAG.2012.17.3.219

Changes in SNR and ADC According to the Increase in b Value in Liver Diffusion-Weighted Images  

Cho, Jae-Hwan (Department of International Radiological Science, Hallym University of Graduate Studies)
Kim, Ham-Gyum (Department of Radiological Technology, Ansan College)
Publication Information
Journal of Magnetics / v.17, no.3, 2012 , pp. 219-224 More about this Journal
Abstract
In the present study, changes in signal-to-noise ratio (SNR) and apparent diffusion coefficient (ADC) of the diffusion-weighted images in the normal livers were investigated using changes in b values in 1.5 T MR (magnetic resonance) instruments. Respective diffusion-weighted images and ADC map images were obtained from 20 healthy individuals by increasing b values from 50 to 400 and 800 $s/mm^2$ using 1.5T MR scanner between January 2011 and November 2011. At each ADC map image obtained at each b value, ADCs in the right hepatic lobe, spleen and kidney were measured. As a result, ADCs of the right hepatic lobe, spleen and kidney have gradually decreased in the diffusion-weighted images in accordance with the reduced b value. This outcome may be used as preliminary data for applications to various abdominal diseases.
Keywords
liver; diffusion-weighted imaging; ADC map images; b value; ADC;
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1 J. E. Sarlls, "High-resolution diffusion-weighted magnetic resonance imaging: Development and application of novel radial fast spin-echo acquisitions", Ph. D. Thesis, The University of Arizona 3215376 (2006).
2 A. Einstein, Investigations on the Theory of Brownian Motion. Dover, New York (1926).
3 E. O. Stejskal and J. E. Tanner, J. Chem. Phys. 42, 288 (1965).
4 S. Warach, J. Gaa, B. Siewert, P. Wielopolski, and R. R. Edelman, Ann. Neurol. 37, 231 (1995).   DOI   ScienceOn
5 B. Taouli and D. M. Koh, Radiology 254, 47 (2010).   DOI   ScienceOn
6 M. C. DeLano, T. G. Cooper, J. E. Siebert, M. J. Potchen, and K. Kuppusamy, Am. J. Neuroradiol. 21, 1830 (2000).
7 J. H. Burdette, D. D. Durden, A. D. Elster, and Y. F. Yen, J. Comput. Assist. Tomogr. 25, 515 (2001).   DOI   ScienceOn
8 T. Namimoto, Y. Yamashita, S. Sumi, Y. Tang, and M. Takahashi, Radiology 204, 739 (1997).   DOI
9 T. Kim, T. Murakami, S. Takahashi, M. Hori, K. Tsuda, and H. Nakamura, Am. J. Roentgenol. 173, 393 (1999).   DOI   ScienceOn
10 T. Bachir, V. Valerie, D. Erik, D. Jean-Luc, F. Bo, and M. Yves, Radiology 226, 71 (2003).   DOI   ScienceOn
11 C. A. Clark and L. B. Denis, Magnetic Resonance in Medicine 44, 852 (2000).   DOI
12 D. Le Bihan, E. Breton, D. Lallemand, M. L. Aubin, J. Vignaud, and M. Laval-Jeantet, Radiology 168, 497 (1988).   DOI
13 C. J. Fretz, D. D. Stark, C. E. Metz, G. Elizondo, R. Weissleder, J. H. Shen, J. Wittenberg, J. Simeone, and J. T. Ferrucci, Am. J. Roentgenol. 155, 763 (1990).   DOI   ScienceOn
14 K. D. Hagspiel, K. F. Neidl, A. C. Eichenberger, W. Weder, and B. Marincek, Radiology 196, 471 (1995).   DOI
15 M. Strotzer, J. Gmeinwieser, J. Schmidt, C. Fellner, J. Seitz, H. Albrich, H. Zirngibl, and S. Feuerbach, Acta Radiol. 38, 986 (1997).
16 H. C. Thoeny and F. De Keyzer, Eur. Radiol. 17, 1385 (2007).   DOI   ScienceOn
17 D. M. Koh and D. J. Collins, Am. J. Roentgenol. 188, 1622 (2007).   DOI   ScienceOn
18 J. H. Lee, C. H. Sohn, and J. S. Choi, J. Korean Radiol. Soc. 49, 455 (2003).   DOI
19 D. Chien, K. K. Kwong, D. R. Gress, F. S. Buonanno, R. B. Buxton, and B. R. Rosen, AJNR 13, 1097 (1992).