Diagnostic Performance of the Simultaneous Acquisition Rest 99 mTc-Tetrofosmin/Stress 201Tl Dual-Isotope Protocol With a Semiconductor Cameraã- Comparison With the Rest-Stress 99 mTc-Tetrofosmin Protocol.
Circ J
; 82(11): 2837-2844, 2018 10 25.
Article
em En
| MEDLINE
| ID: mdl-30175800
ABSTRACT
BACKGROUND:
This study compared the diagnostic value of myocardial perfusion imaging (MPI) between the rest-stress 99 mTc-tetrofosmin protocol (Tc/Tc protocol) and simultaneous acquisition rest 99 mTc-tetrofosmin/stress 201Tl dual-isotope protocol (SDI protocol) with a semiconductor camera.MethodsâandâResults:
We retrospectively studied 147 patients who underwent stress MPI using a cadmium-zinc-telluride camera and invasive coronary angiography within a 3-month interval. The Tc/Tc and SDI protocols were used in 59 and 88 patients, respectively. The sensitivity, specificity, and accuracy of the summed difference score in per-patient analysis were 56%, 85%, and 69%, respectively, for the Tc/Tc protocol and 89%, 82%, and 85%, respectively, for the SDI protocol. The area under the receiver operating characteristic curve was significantly better for the SDI than Tc/Tc protocol for the left anterior descending artery (0.836 vs. 0.674; P=0.0380), the left circumflex artery (0.754 vs. 0.599; P=0.0441), and in per-patient analysis (0.875 vs. 0.707; P=0.0135). There was no significant difference in the diagnostic accuracy of the summed stress score for any vessel or in per-patient analysis between the 2 protocols.CONCLUSIONS:
The SDI protocol had a higher diagnostic accuracy for the detection of coronary ischemia than the Tc/Tc protocol.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Compostos Organofosforados
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Radioisótopos de Tálio
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Compostos de Organotecnécio
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Tomografia Computadorizada de Emissão de Fóton Único
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Angiografia Coronária
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Isquemia Miocárdica
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Imagem de Perfusão do Miocárdio
Tipo de estudo:
Diagnostic_studies
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Guideline
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Observational_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article