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Dosimetric evaluation in radiation synovectomy BABT
Lima,Carla Flávia de; Campo,Tarcisio Passos Ribeiro de.
Rheumatoid arthritis can manifest itself through synovitis, of which the knee is the common locale. The treatment using an intra-articular radioisotope injection has been applied in various countries. In this work, the dose of radioactive material absorbed in the joint is evaluated, taking into consideration the dose received in the articular cartilage and adjacencies using a three-dimensional voxel model representing the knee. The radioisotopes studied were Samarium-153 and Dysprosium-165. The results show that the synovial membrane receives 85 to 98% of the normalized dose taken from all voxels representative of the synovium. The following features of 153Sm and of 165Dy - its short physical half-life, the gamma emissions with low energy which allow...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rheumatoid arthritis; Radiation synovectomy; Dose absorbed.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700022
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Qualitative and quantitative lymphoscintigraphy in the evaluation of lower limbs lymphedema BABT
Dalia,Roberta Maria; Martins,Gláucia Ribeiro P.; Barbosa,Rodolfo; Lima,Carla Flávia de; Siqueira,Cristiano Ferrari.
The purpose of this study was to prove the efficiency of qualitative and quantitative lymphoscintigraphy in the diagnosis of the lower extremity lymphedema. Seventy-seven patients had been studied, most of then (85.7%) were female. Patients’ ages ranged from 18 to 82 years. All patients underwent a bilateral lymphoscintigraphy. Images were recorded with a dual-detector instrument in the whole-body scanning mode. Feet and inguinal static views were acquired within 15 minutes and three hours after radiopharmaceutical injection. Two nuclear doctors evaluated the lymphoscintigrams qualitatively. Quantitative studies of the radiopharmaceutical absorption and the lymph node chain uptake were also obtained. Of the 154 evaluated members, 21.44% (n = 33) were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lymphedema; Lymphoscintigraphy; Lower limbs; Dextran; Radiopharmaceutical.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700023
Registros recuperados: 2
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