2024-03-28T09:19:13Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00008011
2022-12-14T04:00:09Z
882:883
Radial volumetric imaging breath-hold examination (VIBE) with k-space weighted image contrast (KWIC) for dynamic gadoxetic acid (Gd-EOB-DTPA)-enhanced MRI of the liver: advantages over Cartesian VIBE in the arterial phase
Fujinaga, Yasunari
Ohya, Ayumi
Tokoro, Hirokazu
Yamada, Akira
Ueda, Kazuhiko
Ueda, Hitoshi
Kitou, Yoshihiro
Adachi, Yasuo
Shiobara, Aya
Tamaru, Naomichi
Nickel, Marcel D.
Maruyama, Katsuya
Kadoya, Masumi
Radial VIBE
k-space weighted image contrast
Gd-EOB-DTPA
Dynamic contrast-enhanced MRI
Liver
To compare radial volumetric imaging breath-hold examination with k-space weighted image contrast reconstruction (r-VIBE-KWIC) to Cartesian VIBE (c-VIBE) in arterial phase dynamic gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (DCE-MRI) of the liver. We reviewed 53 consecutive DCE-MRI studies performed on a 3-T unit using c-VIBE and 53 consecutive cases performed using r-VIBE-KWIC with full-frame image subset (r-VIBEfull) and sub-frame image subsets (r-VIBEsub; temporal resolution, 2.5-3 s). All arterial phase images were scored by two readers on: (1) contrast-enhancement ratio (CER) in the abdominal aorta; (2) scan timing; (3) artefacts; (4) visualisation of the common, right, and left hepatic arteries. Mean abdominal aortic CERs for c-VIBE, r-VIBEfull, and r-VIBEsub were 3.2, 4.3 and 6.5, respectively. There were significant differences between each group (P < 0.0001). The mean score for c-VIBE was significantly lower than that for r-VIBEfull and r-VIBEsub in all factors except for visualisation of the common hepatic artery (P < 0.05). The mean score of all factors except for scan timing for r-VIBEsub was not significantly different from that for r-VIBEfull. Radial VIBE-KWIC provides higher image quality than c-VIBE, and r-VIBEsub features high temporal resolution without image degradation in arterial phase DCE-MRI. aEuro cent Radial VIBE-KWIC minimised artefact and produced high-quality and high-temporal-resolution images. aEuro cent Maximum abdominal aortic enhancement was observed on sub-frame images of r-VIBE-KWIC. aEuro cent Using r-VIBE-KWIC, optimal arterial phase images were obtained in over 90 %. aEuro cent Using r-VIBE-KWIC, visualisation of the hepatic arteries was improved. aEuro cent A two-reader study revealed r-VIBE-KWIC's advantages over Cartesian VIBE.
Article
EUROPEAN RADIOLOGY. 24(6):1290-1299 (2014)
journal article
SPRINGER
2014-06
application/pdf
EUROPEAN RADIOLOGY
6
24
1290
1299
0938-7994
AA10824302
https://soar-ir.repo.nii.ac.jp/record/8011/files/Radial_volumetric_imaging_breath-hold_examination.pdf
eng
24633374
https://pubmed.ncbi.nlm.nih.gov/24633374
10.1007/s00330-014-3122-0
https://doi.org/10.1007/s00330-014-3122-0
Copyright© 2014 European Society of Radiology / The original publication is available at www.springerlink.com