Evaluation of intraportal venous flow distribution by unenhanced MR angiography using three‐dimensional fast spin‐echo with a selective tagging pulse: Efficacy of subtraction of tag‐on and tag‐off images acquired during a single breath‐hold
Open Access
- 22 April 2009
- journal article
- research article
- Published by Wiley in Journal of Magnetic Resonance Imaging
- Vol. 29 (5), 1224-1229
- https://doi.org/10.1002/jmri.21764
Abstract
Purpose To evaluate the efficacy of subtracted MR images from two sets of unenhanced three‐dimensional (3D) MR angiography data (tag‐on and tag‐off images) acquired simultaneously during a single breath‐hold in assessing the intraportal venous flow distribution to the distal branches from the superior mesenteric vein (SMV) and the splenic vein (SpV). Materials and Methods Tag‐on and tag‐off MR images during a single breath‐hold were obtained in 25 normal subjects. Tagging pulse was placed on the SMV or SpV separately to study inflow correlation of tagged blood into the portal vein. Results On the MR images tagged on the SMV, the mean ratings of visibility of tagged blood flow on the subtracted images were significantly higher (P = 0.016–0.0001) than those on the source images in almost all branches except second‐ordered left portal vein (P = 0.096). On the subtracted MR images tagged on SMV, the tramline (16 of the 25 subjects) was the most common distribution pattern of the tagged blood inflow in the main portal vein. Conclusion Subtracted MR images from two sets of unenhanced 3D MR angiography data (tag‐on and tag‐off images) acquired simultaneously would be effective to show the blood flow distribution of tagged blood into the portal vein and distal branches from SMV and SpV under the physiological condition without contrast injections. J. Magn. Reson. Imaging 2009;29:1224–1229.Keywords
This publication has 15 references indexed in Scilit:
- Location of liver metastases reflects the site of the primary colorectal carcinomaScandinavian Journal of Gastroenterology, 2008
- Pre‐ and postprandial alterations of portal venous flow: Evaluation with single breath‐hold three‐dimensional half‐fourier fast spin‐echo MR imaging and a selective inversion recovery tagging pulseJournal of Magnetic Resonance Imaging, 2005
- Streamlined flow in the portal vein: Demonstration with MR angiographyJournal of Magnetic Resonance Imaging, 2002
- Intraportal Venous Flow DistributionAmerican Journal of Roentgenology, 2002
- Non-contrast-enhanced MR angiography using 3D ECG-synchronized half-Fourier fast spin echoJournal of Magnetic Resonance Imaging, 2000
- Heterogeneous intrahepatic distribution of blood flow in humansEuropean Journal of Nuclear Medicine and Molecular Imaging, 1981
- Comparison of Reticuloendothelial Scans with Bone Scans in Malignant DiseaseClinical Nuclear Medicine, 1981
- Portal VenographyDigestive Diseases and Sciences, 1956
- "STREAM LINE" PHENOMENA IN THE PORTAL VEIN AND THE SELECTIVE DISTRIBUTION OF PORTAL BLOOD IN THE LIVERArchives of Surgery, 1928