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1.
Rev. med. nucl. Alasbimn j ; 7(29)july 2005. ilus
Article in Spanish | LILACS | ID: lil-444068

ABSTRACT

La Medicina Nuclear clínica se apoya tradicionalmente en tres grandes pilares básicos, estos son las imágenes, la terapia con radionucleidos y las técnicas "in vitro". En los últimos años, tanto con el desarrollo de las imágenes moleculares como con el surgimiento de nuevas aplicaciones terapéuticas con radionucleidos, se nos abren insospechadas oportunidades para que nuestra especialidad ocupe un valioso sitial en las nuevas aplicaciones oncológicas. En este artículo se revisa nuestra experiencia en dos novedosas áreas en las cuales hemos tenido la oportunidad de desarrollarlas en nuestro centro. Estas son la terapia con 90Y-DOTATOC en tumores con sobre-expresión de receptores de somatostatina[1] (carcinoides, neuroendocrinos y otros) y el uso de 90Y-Ibritumomab-Tiuxetan en Linfomas No Hodgkin de células B con presencia de antígeno CD20+[2].


Subject(s)
Humans , Lymphoma, Non-Hodgkin/radiotherapy , Nuclear Medicine/trends , Yttrium Radioisotopes/therapeutic use , Radiotherapy/trends , Carcinoid Tumor/radiotherapy , Neuroendocrine Tumors/radiotherapy , Antibodies, Monoclonal , Lymphoma, B-Cell/radiotherapy , Radiopharmaceuticals/therapeutic use , Radioimmunotherapy/trends , Yttrium Radioisotopes/administration & dosage
2.
Rev. méd. Chile ; 122(11): 1283-8, nov. 1994. tab, ilus
Article in Spanish | LILACS | ID: lil-144027

ABSTRACT

Despite the progress in the treatment of rheumatoid arthritis (RA), many patients continue to suffer from persistent and painful synovitis. We assessed the clinical results of 64 intraarticular injections of Yttrium 90 in the knee and 56 injections of Rhenium 186 in the wrist in 71 patients with RA, older than 40 years, without relief of synovitis after six months of systemic or local treatment and with a radiological stage I or II of the joints. We obtained good results in 75 percent of knees and 100 of wrists during a follow up period of 8 to 60 months. A repeat histological examination of the synovial membrane of 14 joints in which good results were obtained disclosed a reduction in inflammation and transitory synovial cell hyperplasia that ended in a dense fibrosis. It is concluded that radiation synovectomy continues to be an effective therapy for selected patients with RA and synovitis. The observed histopathological changes may aid the interpretation of magnetic resonance imaging of the treated joints


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Arthritis, Rheumatoid/radiotherapy , Synovial Membrane/radiation effects , Yttrium Radioisotopes/administration & dosage , Synovial Membrane/pathology , Follow-Up Studies , Wrist Joint/radiation effects , Knee Joint/radiation effects , Radioisotopes/therapeutic use , Magnetic Resonance Spectroscopy
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