نتایج جستجو برای: tc99m hmdp
تعداد نتایج: 384 فیلتر نتایج به سال:
OBJECTIVE The optimization of medical exposure is one of the major issues regarding radiation protection in the world, and The International Committee of Radiological Protection and the International Atomic Energy Agency recommend establishing diagnostic reference levels (DRLs) as tools for dose optimization. Therefore, the development of DRLs based on the latest survey has been required for nu...
objectives: multidrug resistance (mdr), which may be due to the over expression of p-glycoprotein (pgp) and/or mrp, is a major problem in neoadjuvant chemotherapy of osteosarcoma. the aim of this study was to investigate the role of tc-99m mibi scan for predicting the response to pre-operative chemotherapy. materials and methods: twenty-five patients (12 males and 13 females, aged between 8 and...
In the first part of this two-part article, the characteristics, potential uses, radiochemical purity and method of evaluating the activity of Tc99m will be discussed. In the second part of the article, the dosimetry of this radionuclide will be presented for various routes of administration as well as for various chem ical configurations, such as the pertechnetate ion, the colloid and the prot...
The pattern of joint involvement on conventional radiographs and the four hour gammacamera image of 99Tc HMDP bone scans were studied in 33 patients with generalised nodal osteoarthritis. Both techniques showed the predominant involvement of the distal interphalangeal, scaphotrapezial, and first carpometacarpal joints. Some joints were abnormal just on one investigation: either x ray or scan al...
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