Your browser doesn't support javascript.
loading
Evaluation of compressed sensing MRI for accelerated bowel motility imaging.
de Jonge, C S; Coolen, B F; Peper, E S; Motaal, A G; Nio, C Y; Somers, I; Strijkers, G J; Stoker, J; Nederveen, A J.
Afiliação
  • de Jonge CS; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. c.s.dejonge@amsterdamumc.nl.
  • Coolen BF; Department of Biomedical Engineering and Physics, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Peper ES; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Motaal AG; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Nio CY; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Somers I; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Strijkers GJ; Department of Biomedical Engineering and Physics, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Stoker J; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
  • Nederveen AJ; Department of Radiology and Nuclear Medicine, Amsterdam UMC, location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Eur Radiol Exp ; 3(1): 7, 2019 Feb 06.
Article em En | MEDLINE | ID: mdl-30725241
ABSTRACT

BACKGROUND:

To investigate the feasibility of compressed sensing and parallel imaging (CS-PI)-accelerated bowel motility magnetic resonance imaging (MRI) and to compare its image quality and diagnostic quality to conventional sensitivity encoding (SENSE) accelerated scans.

METHODS:

Bowel MRI was performed in six volunteers using a three-dimensional balanced fast field-echo sequence. Static scans were performed after the administration of a spasmolytic agent to prevent bowel motion artefacts. Fully sampled reference scans and multiple prospectively 3× to 7× undersampled CS-PI and SENSE scans were acquired. Additionally, fully sampled CS-PI and SENSE scans were retrospectively undersampled and reconstructed. Dynamic scans were performed using 5× to 7× accelerated scans in the presence of bowel motion. Retrospectively, undersampled scans were compared to fully sampled scans using structural similarity indices. All reconstructions were visually assessed for image quality and diagnostic quality by two radiologists.

RESULTS:

For static imaging, the performance of CS-PI was lower than that of fully sampled and SENSE scans the diagnostic quality was assessed as adequate or good for 100% of fully sampled scans, 95% of SENSE, but only for 55% of CS-PI scans. For dynamic imaging, CS-PI image quality was scored similar to SENSE at high acceleration. Diagnostic quality of all scans was scored as adequate or good; 55% of CS-PI and 83% of SENSE scans were scored as good.

CONCLUSION:

Compared to SENSE, current implementation of CS-PI performed less or equally good in terms of image quality and diagnostic quality. CS-PI did not show advantages over SENSE for three-dimensional bowel motility imaging.
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Eur Radiol Exp Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Eur Radiol Exp Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Holanda
...