Affordable Access

Access to the full text

Visualization of flow dynamics in the portal circulation using 320-detector-row computed tomography: a feasibility study

Authors
  • Kageyama, Ken1
  • Yamamoto, Akira1
  • Jogo, Atsushi1
  • Izuta, Shinichiro2
  • Himoto, Daisuke2
  • Kakimi, Akihiko2
  • Sohgawa, Etsuji1
  • Miki, Yukio1
  • 1 Osaka City University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan , Osaka (Japan)
  • 2 Osaka City University Hospital, 1-5-7 Asahi-machi, Abeno-ku, Osaka, 545-8586, Japan , Osaka (Japan)
Type
Published Article
Journal
European Radiology Experimental
Publisher
Springer International Publishing
Publication Date
Jan 12, 2021
Volume
5
Issue
1
Identifiers
DOI: 10.1186/s41747-020-00197-8
Source
Springer Nature
Keywords
License
Green

Abstract

Multidetector row computed tomography (CT) scanners perform dynamic scanning and have a wide scan range. Time-resolved three-dimensional CT (i.e., 4D CT) has recently enabled visualization of flow in neurovascular vessels. We hypothesized that 4D CT technology would be a useful and non-invasive method for visualizing the flow dynamics of the portal circulation. The aim of this study was to evaluate the technical feasibility of 4D CT for visualizing flow dynamics in the portal circulation using 320-detector-row CT. 4D CT images of 18 consecutive patients with portal circulation including gastrorenal shunt were retrospectively evaluated for their ability to generate flow dynamics of the portal circulation. Flow dynamics could be visualized by 4D CT in 68 of the 72 vessels in the portal vein, splenic vein, superior mesenteric vein, and gastrorenal shunt. Flow direction could not be identified in four vessels, all of them being superior mesenteric veins. Flow direction was recognized on 4D CT in the 68 vessels of the portal circulation. A preliminary validation study revealed that flow direction of all 19 vessels in the portal circulation had concordance between 4D CT and color Doppler ultrasound. 4D CT could visualize flow dynamics of the portal circulation.

Report this publication

Statistics

Seen <100 times