HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Ito, K. Articles by Matsunaga, N. Search for Related Content PubMed PubMed Citation Articles by Ito, K. Articles by Matsunaga, N. Social Bookmarking                      What's this? Hotlight (NEW!) What's Hotlight?

Intraportal Venous Flow Distribution

Evaluation with Single Breath-Hold ECG-Triggered Three-Dimensional Half-Fourier Fast Spin-Echo MR Imaging and a Selective Inversion-Recovery Tagging Pulse

¹ Department of Radiology, Yamaguchi University School of Medicine, 1-1-1 Minami Kogushi, Ube, Yamaguchi 755-8505, Japan.
² Toshiba Medical Engineering Center, 1385 Shimoishigami, Otawara, Tochigi 324-8550, Japan.

OBJECTIVE. The purpose of this study was to evaluate the intraportal blood flow distribution from splenic and superior mesenteric veins with an unenhanced MR angiographic technique using single breath-hold ECG-triggered three-dimensional (3D) half-Fourier fast spin-echo sequence and selective inversion-recovery tagging pulse.

SUBJECTS AND METHODS. Seventeen healthy volunteers were included in this prospective study. After obtaining regular single breath-hold ECG-triggered 3D half-Fourier fast spin-echo images without applying a tagging pulse, we placed the selective inversion-recovery tagging pulse on the superior mesenteric vein (TAG-A), the splenic vein (TAG-B), or on both (TAG-C) to study the inflow correlation of tagged or marked blood into the portal vein. MR images were evaluated subjectively by three reviewers.

RESULTS. On MR images obtained using the TAG-A pulse to suppress the signal flow from the superior mesenteric vein into the portal vein, the most common pattern of signal loss was observed on the right half of the main portal vein (8/17 subjects). Conversely, on the MR images obtained using the TAG-B pulse, signal loss of the left half of the main portal vein was the most common pattern (11/17 subjects). Signal reduction from the splenic venous flow in the left portal vein was significantly greater than that from the superior mesenteric venous flow (p<0.05).

CONCLUSION. The unenhanced MR angiographic technique using single breath-hold ECG-triggered 3D half-Fourier fast spin echo with selective inversion-recovery tagging pulse has the potential to assess the intraportal blood flow distribution from the splenic and superior mesenteric veins.

CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?

This article has been cited by other articles:

				K. Shimada, H. Isoda, T. Okada, T. Kamae, S. Arizono, Y. Hirokawa, and K. Togashi Unenhanced MR Portography With a Half-Fourier Fast Spin-Echo Sequence and Time-Space Labeling Inversion Pulses: Preliminary Results Am. J. Roentgenol., July 1, 2009; 193(1): 106 - 112. [Abstract] [Full Text] [PDF]

				S. Yamada, M. Miyazaki, H. Kanazawa, M. Higashi, Y. Morohoshi, S. Bluml, and J. G. McComb Visualization of Cerebrospinal Fluid Movement with Spin Labeling at MR Imaging: Preliminary Results in Normal and Pathophysiologic Conditions Radiology, November 1, 2008; 249(2): 644 - 652. [Abstract] [Full Text] [PDF]

				M. Miyazaki and V. S. Lee Nonenhanced MR Angiography Radiology, July 1, 2008; 248(1): 20 - 43. [Abstract] [Full Text] [PDF]