RESUMO
No abstract available.
RESUMO
No abstract available.
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Otite Externa , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
No abstract available.
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Colecistocinina , Esvaziamento da Vesícula Biliar , Vesícula Biliar , RefeiçõesRESUMO
No abstract available.
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Cintilografia , Pertecnetato Tc 99m de Sódio , Glândula Tireoide , Neoplasias da Glândula TireoideRESUMO
No abstract available.
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Humanos , Antígeno Carcinoembrionário , Neoplasias ColorretaisRESUMO
No abstract available.
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Doença de Parkinson , Tecnécio Tc 99m Exametazima , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
No abstract available.
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Adulto , Humanos , Ácido Dimercaptossuccínico Tecnécio Tc 99m , Tomografia Computadorizada de Emissão de Fóton Único , Infecções Urinárias , Sistema UrinárioRESUMO
No abstract available.
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Diagnóstico , Hemangioma , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
No abstract available.
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Humanos , Adenilil Ciclases , Doença de Graves , Glândula TireoideRESUMO
No abstract available.
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Coluna Vertebral , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
No abstract available.
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Coluna Vertebral , Tomografia Computadorizada de Emissão de Fóton ÚnicoRESUMO
To evaluate the possible potential of Tc-99m HMPAO SPECT in the differential diagnosis of vertigo, we selected 23 patients and devided them into three groups according to their clinical manifestations: vestibuloneuronitis(VN), benign positional vertigo(BPV), and vertebrobasilar insufficiency (VBI) groups. Then, we prospectively performed SPECT in these patients. In addition, risk factors for strokes, Nylan-Barany tests, brain stem auditory evoked responses(BAER) were investigated. Perfusion defects in the vertebrobasilar territory were evident in 7 out of 8 cases in VBI group, while 1 out of 5, and 2 out of 10 cases showed such findings in BPV and VN groups respectively. We conclude that SPECT may play a role in differential diagnosis of vertigo. It also seems more useful than traditional investigations such as CT, MRI, or BAER in the evaluation of the patients with VBI.
Assuntos
Humanos , Tronco Encefálico , Diagnóstico , Diagnóstico Diferencial , Imageamento por Ressonância Magnética , Perfusão , Estudos Prospectivos , Fatores de Risco , Acidente Vascular Cerebral , Tecnécio Tc 99m Exametazima , Tomografia Computadorizada de Emissão de Fóton Único , Insuficiência Vertebrobasilar , VertigemRESUMO
Automated data processing and quality control of radioimmunoassays offer not only increased speed but also a more thorough and statistically rigorous analysis of results. An external quality assessment scheme for serum thyroxine, triiodothyronine and thyroid stimulating hormone (TSH) assays was performed in five nuclear medicine laboratories in Korea to compare with the assay performances of the World Health Organization Radioimmunoassay Program. The required radioimmunoassay kits were supplied through the International Atomic Energy Agency (IAEA). We have determined the weighted root mean squared error, and variance ratio as the indices of standard curve and also the average batch coefficient of variation (ABCV) as the parameters of response error relationship curve and precision profile. There was a good fit for the triiodothyronine assay, but 3 of 5 laboratories showed possible bad fit in the T4 and TSH assay systems. The ABCV was less than 5 percent for the T3 and T4 assay system, however for the TSH system, only 1 laboratory showed the ABCV value of less than 5 percent. We have also calculated the within batch variation (drift) and between laboratory variations.
Assuntos
Humanos , Processamento Eletrônico de Dados , Radioimunoensaio/normas , Hormônios Tireóideos/análiseRESUMO
Automated data processing and quality control of radioimmunoassays offer not only increased speed but also a more thorough and statistically rigorous analysis of results. An external quality assessment scheme for serum thyroxine, triiodothyronine and thyroid stimulating hormone (TSH) assays was performed in five nuclear medicine laboratories in Korea to compare with the assay performances of the World Health Organization Radioimmunoassay Program. The required radioimmunoassay kits were supplied through the International Atomic Energy Agency (IAEA). We have determined the weighted root mean squared error, and variance ratio as the indices of standard curve and also the average batch coefficient of variation (ABCV) as the parameters of response error relationship curve and precision profile. There was a good fit for the triiodothyronine assay, but 3 of 5 laboratories showed possible bad fit in the T4 and TSH assay systems. The ABCV was less than 5 percent for the T3 and T4 assay system, however for the TSH system, only 1 laboratory showed the ABCV value of less than 5 percent. We have also calculated the within batch variation (drift) and between laboratory variations.