Avaliação da relevância das imagens simultâneas de fusão: SPECT com 99m Tc-MDP e Tomografia Computadorizada aplicada no diagnóstico das Disfunções Temporomandibulares. / Assessment of the importance of simultaneous fusion images: SPECT with 99m Tc-MDP and Computed Tomography applied to the diagnosis of Temporomandibular Joint Dysfunctions.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

Temporomandibular joint dysfunction play a negative role on patient life quality standard. A diversity of signs and symptoms such us muscular pain, headaches (focal or diffuse), temporomandibular joint localized pain, limitation or excessive mandibular opening and joint noise may lead to difficulties of correct diagnosis. Clinical investigation and complementary exams are necessary in these cases. Conventional radiographic and tomographic exams exactilly indicates local anatomy but do not demonstrate functional metabolic changes. Tomographic images on Nuclear Medicine, SPECT (Single Photon Emission Computed Tomography) with 99m Tc-MDP (methylene diphosphonate) a radiopharmaceutical labeled with Technetium 99m demonstrate regional metabolism changes. The association to co-registered computed tomography (CT) and image fusion allows the anatomic placement of bone functional alteration into the involved structures. SPECT/CT is a low dose radiation procedure that makes simultaneous anatomic and metabolic observation possible. This assignment was retrospectively analyzed, SPECT/CT of 33 patients from the Nuclear Medicine Sector of the Image Department of the Research and Treatment Center of the Cancer Hospital A. C. Camargo, that presented sings and symptoms of probable temporomandibular joint dysfunction. The results of the exams were related with the patient data that were on their file like sex, age, anamnesis and clinical exam. The assessment of the reliability of the exam was evaluated by descriptive analysis using frequencies and percentages of the interest variables. We conclude that SPEC/CT showed high sensitivity (100%), specificity (90,9%) and accuracy (96,9%); demonstrating that it is an important and useful diagnostic method, that may be an exam of choice to the diagnostic features of temporomandibular joint disfunction.

ASSUNTO(S)

diagnóstico dtm bone scintigraphy dtm spect/ct nuclear medicine diagnosis tmj spect/ct atm cintilografia Óssea medicina nuclear tmj dysfunction

ACESSO AO ARTIGO

Documentos Relacionados