Prostate MRI using an external phased array wearable pelvic coil at 3T: comparison with an endorectal coil.
Abdom Radiol (NY)
; 44(3): 1062-1069, 2019 03.
Article
em En
| MEDLINE
| ID: mdl-30324501
ABSTRACT
PURPOSE:
To evaluate T2w and DWI image quality using a wearable pelvic coil (WPC) compared with an endorectal coil (ERC).METHODS:
Twenty men consecutively presenting to our prostate cancer MRI clinic were prospectively consented to be scanned using a wearable pelvic coil then an endorectal coil and pelvic phased array coil at 3T. Eighteen patients were suitable for inclusion. Axial T2w images were obtained using the WPC and ERC, and DWI images were obtained using the WPC, ERC, and PPA. Analysis was performed in consensus by two readers with experience in prostate MRI. The readers scored the T2w images using six qualitative criteria and the DWI images using five criteria. Signal-to-noise ratio (SNR) was also measured.RESULTS:
T2w artifact severity was greater for an ERC than a WPC (p = 0.003). There was no significant difference in T2w qualititatve image quality by other measures. The distinction of zonal anatomy on DWI was superior for an ERC compared with both a WPC and a PPA (p = 0.018 and p < 0.001 respectively), and there was no significant difference in DWI image quality by other measures. SNR was significantly higher for ERC imaging for both T2w and DWI.CONCLUSION:
WPC imaging provides comparable image quality to that of an ERC, potentially reducing the need for an ERC. WPC imaging shows reduced T2w artifact severity and inferior DWI zonal anatomy distinction compared with an ERC. Imaging with a WPC produces a lower SNR than an ERC.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Imageamento por Ressonância Magnética
Tipo de estudo:
Observational_studies
/
Qualitative_research
Limite:
Aged
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Abdom Radiol (NY)
Ano de publicação:
2019
Tipo de documento:
Article