Quantitative comparison of imaging performance of x-ray interferometric imaging and diffraction enhanced imaging.
For detailed biomedical observations using the optimum phase-contrast x-ray imaging, quantitative comparisons of imaging performances of two major imaging methods--x-ray interferometric imaging (XII) and diffraction enhanced imaging (DEI)--were performed. Density sensitivity and spatial resolution of each imaging method were evaluated using phantom tomograms obtained by each method with the same x-ray dosage. For practical comparison of the methods, biological samples were also observed under the same conditions. The results show that XII has a higher sensitivity than that of DEI and is thus suitable for observation of soft biological tissues. On the other hand, DEI has a wider dynamic range of density and is thus suitable for observation of samples with large differences in density of different regions.
Akio
Yoneyama
Y
Advanced Research Laboratory, Hitachi, Ltd., 2520 Akanuma, Hatoyama, Saitama, 350-0395, Japan. akio.yoneyama.bu@hitachi.com
Jin
Wu
W
Kazuyuki
Hyodo
H
Tohoru
Takeda
T
D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D007368:Interferometry / Q000295:instrumentation* / Q000379:methods; D011859:Radiography / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods