Pulmonary perfusion MRI using interleaved variable density sampling and HighlY constrained cartesian reconstruction (HYCR).
J Magn Reson Imaging
; 38(3): 751-6, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-23349079
ABSTRACT
PURPOSE:
To demonstrate the feasibility of performing single breathhold, noncardiac gated, ultrafast, high spatial-temporal resolution whole chest MR pulmonary perfusion imaging in humans. MATERIALS ANDMETHODS:
Eight subjects (five male, three female) were scanned with the proposed method on a 3 Tesla clinical scanner using a 32-channel phased-array coil. Seven (88%) were healthy volunteers, and one was a patient volunteer with sarcoidosis. The peak lung enhancement phase for each subject was scored for gravitational effect, peak parenchymal enhancement and severity of artifacts by three cardiothoracic radiologists independently.RESULTS:
All studies were successfully performed by MR technologists without any additional training. Mean parenchymal signal was very good, measuring 0.78 ± 0.13 (continuous scale, 0 = "none" â 1 = "excellent"). Mean level of motion artifacts was low, measuring 0.13 ± 0.08 (continuous scale, 0 = "none" â 1 = "severe").CONCLUSION:
It is feasible to perform single breathhold, noncardiac gated, ultrafast, high spatial-temporal resolution whole chest MR pulmonary perfusion imaging in humans.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sarcoidose
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Interpretação de Imagem Assistida por Computador
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Aumento da Imagem
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Circulação Pulmonar
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Artefatos
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Angiografia por Ressonância Magnética
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
J Magn Reson Imaging
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos