ABSTRACT
In this report, the preliminary results of the experimental evaluation of the Performance of HiReSPECT scanner have been illustrated. In order to assess the capability of the scanner in both planar and tomographic modes, three rats were injected with 99mTc, 99mTc-DMSA, and 99mTc-MDP for thyroid scan, kidney scan and bone scan respectively in order to perform planar imaging. In addition, two rats were injected with 99mTc-MIBI and 99mTc-DMSA to perform cardiac and kidney tomographic imaging, respectively. Tomographic and planar scans of the rat organs showed that radioactive distribution in cardiac, kidney, bone and thyroid images exhibited detailed physiologic information of the imaged organs. Due to high resolution performance of the scanner, thyroid lobes are well depicted and distinguished from each other. Results of the evaluation of the planar and tomographic images indicated that HiReSPECT has appropriate imaging capability as an imaging system in biomedical research
ABSTRACT
Nowadays, science mapping is considered an excellent technique for decision-makers to find solutions for problems in research planning and development. In this work, we aimed to depict a science map of "radiology, nuclear medicine, and medical imaging" in Iran. All publications indexed in Thomson Reuters Web of Science database in the fields mentioned above with at least one affiliation corresponding to "Iran" were included in the study. "Visualization of similarities" [VOS] viewer software was then utilized to analyze the data for generating density maps and density cluster maps of organizations, authors, and journals based on bibliographic coupling and co-citation similarity measures. Various maps were then formed and discussed. Tehran University of Medical Sciences in all fields of radiology, nuclear medicine, and medical imaging was proved to be the dominant organization in the country. Applying VOSviewer software, data was analyzed for extracting bibliographic coupling and co-citation relations and theirs corresponding science maps in terms of affiliated organizations, authors, and publishing journals. More comprehensive studies can be performed to obtain more mature science maps. Performing such analyses for other countries and then comparing with the internal science maps can be useful for decision-makers