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Diagnostic Performance of a 10-Minute Gadolinium-Enhanced Brain MRI Protocol Compared with the Standard Clinical Protocol for Detection of Intracranial Enhancing Lesions.
Fagundes, J; Longo, M G; Huang, S Y; Rosen, B R; Witzel, T; Heberlein, K; Gonzalez, R G; Schaefer, P; Rapalino, O.
Afiliação
  • Fagundes J; From the Clínica de Diagnóstico por Imagem (J.F.), Rio de Janeiro, Brazil.
  • Longo MG; Department of Radiology (M.G.L., S.Y.H., R.G.G., P.S., O.R.), Massachusetts General Hospital, Boston, Massachusetts.
  • Huang SY; Department of Radiology (M.G.L., S.Y.H., R.G.G., P.S., O.R.), Massachusetts General Hospital, Boston, Massachusetts.
  • Rosen BR; Athinoula A. Martinos Center for Biomedical Imaging (B.R.R., T.W.), Charlestown, Massachusetts.
  • Witzel T; Athinoula A. Martinos Center for Biomedical Imaging (B.R.R., T.W.), Charlestown, Massachusetts.
  • Heberlein K; Siemens Medical Solutions (K.H.), Malvern, Pennsylvania.
  • Gonzalez RG; Department of Radiology (M.G.L., S.Y.H., R.G.G., P.S., O.R.), Massachusetts General Hospital, Boston, Massachusetts.
  • Schaefer P; Department of Radiology (M.G.L., S.Y.H., R.G.G., P.S., O.R.), Massachusetts General Hospital, Boston, Massachusetts.
  • Rapalino O; Department of Radiology (M.G.L., S.Y.H., R.G.G., P.S., O.R.), Massachusetts General Hospital, Boston, Massachusetts orapalino@mgh.harvard.edu.
AJNR Am J Neuroradiol ; 38(9): 1689-1694, 2017 Sep.
Article em En | MEDLINE | ID: mdl-28705816
BACKGROUND AND PURPOSE: The development of new MR imaging scanners with stronger gradients and improvement in coil technology, allied with emerging fast imaging techniques, has allowed a substantial reduction in MR imaging scan times. Our goal was to develop a 10-minute gadolinium-enhanced brain MR imaging protocol with accelerated sequences and to evaluate its diagnostic performance compared with the standard clinical protocol. MATERIALS AND METHODS: Fifty-three patients referred for brain MR imaging with contrast were scanned with a 3T scanner. Each MR image consisted of 5 basic fast precontrast sequences plus standard and accelerated versions of the same postcontrast T1WI sequences. Two neuroradiologists assessed the image quality and the final diagnosis for each set of postcontrast sequences and compared their performances. RESULTS: The acquisition time of the combined accelerated pre- and postcontrast sequences was 10 minutes and 15 seconds; and of the fast postcontrast sequences, 3 minutes and 36 seconds, 46% of the standard sequences. The 10-minute postcontrast axial T1WI had fewer image artifacts (P < .001) and better overall diagnostic quality (P < .001). Although the 10-minute MPRAGE sequence showed a tendency to have more artifacts than the standard sequence (P = .08), the overall diagnostic quality was similar (P = .66). Moreover, there was no statistically significant difference in the diagnostic performance between the protocols. The sensitivity, specificity, and accuracy values for the 10-minute protocol were 100.0%, 88.9%, and 98.1%. CONCLUSIONS: The 10-minute brain MR imaging protocol with contrast is comparable in diagnostic performance with the standard protocol in an inpatient motion-prone population, with the additional benefits of reducing acquisition times and image artifacts.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Encéfalo / Imageamento por Ressonância Magnética / Meios de Contraste / Gadolínio Tipo de estudo: Diagnostic_studies / Guideline / Observational_studies Limite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: AJNR Am J Neuroradiol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Encéfalo / Imageamento por Ressonância Magnética / Meios de Contraste / Gadolínio Tipo de estudo: Diagnostic_studies / Guideline / Observational_studies Limite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: AJNR Am J Neuroradiol Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos