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Journal of Dental Research
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Artifacts from Dental Casting Alloys in Magnetic Resonance Imaging

F. Shafiei1,*,2, E. Honda2,3, H. Takahashi1 and T. Sasaki2

1 Advanced Biomaterials,
2 Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan; and
3 Dept. of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima;


Figure 1
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  		Figure 1. MR images and illustration of ROI around sample. T2 FSE images: (a) Acrylic resin control, (b) KIK-Wing, (c) Cobaltan. GE images: (d) Acrylic resin control, (e) KIK-Wing, (f) Cobaltan. Black arrow shows signal intensification, and white arrow indicates signal void. Illustration of the phantom for imaging longitudinal section of a sample. ROI is represented as an entire gray area (g).

 

Figure 2
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  		Figure 2. Histogram of distribution of SI in the ROI around the sample. T2 FSE images: (a) Acrylic resin control, (b) KIK-Wing, (c) Cobaltan. GE images: (d) Acrylic resin control, (e) KIK-Wing, (f) Cobaltan. The reproducibility of the histogram was confirmed, and the results was similar in 5 measurements for each sample. Only a histogram of one measurement is shown here with an interval of one signal intensity.

 

Journal of Dental Research, Vol. 82, No. 8, 602-606 (2003)
DOI: 10.1177/154405910308200806
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