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New tissue substitutes representing cortical bone and adipose tissue in quantitative radiology
S Sanada1, K Kawahara, T Yamamoto
1Department of Radiological Technology, School of Health Sciences, Kanazawa University, Japan. sanada@kenroku.kanazawa-u.ac.jp
Abstract:
To employ quantitative radiology more accurately, we examined phantom materials for cortical bone and adipose tissue as calibration standards and as experimental phantoms. New tissue substitutes for cortical bone and adipose tissue composed of liquid phantom were verified by computing their attenuation coefficients and observing their chemical properties. We showed that a potassium pyrophosphate (K4P2O7) solution for cortical bone was comparable to a dipotassium hydrogen phosphate (K2HPO4) solution. Also, the use of methyl alcohol for adipose tissue was more suitable than ethyl alcohol as a phantom material because of its physical and chemical properties.