Implementation of computed radiography in nuclear medicine imaging

Abstract

Computed Radiography CR is a device uses photo stimulated phosphor mechanism to stores part of the absorbed X–ray dose in metastable states, The exposed CR cassette were acquired by the CR reader to stimulated the stored dose information and generate proportional irradiated object image. This study investigates the response of CR device to the gammarays emitted from radionuclide used in Nuclear Medicine Imaging. The emission of Technetium 99m Tc radiopharmaceutical substance was used as gamma ray sources. The feasibility of the integrated method is tested using the major image properties such as homogeneity, contrast and energy. The image properties were processed using MATLAB\textregistered environment. The purpose of the study is to determine the possibility to implement the CR system in nuclear medicine imaging applications. An experiment setup was developed to address the proposed objective. The obtained image characteristics result indicates accepted field of view, homogenous radiation distribution and proportional response to the radioactive decay.