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 Isoda, H. Articles by Sun, Y. Search for Related Content PubMed PubMed Citation Articles by Isoda, H. Articles by Sun, Y. Social Bookmarking                      What's this?

Software-Triggered Contrast-Enhanced Three-Dimensional MR Angiography of the Intracranial Arteries

¹ Department of Radiology, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu 431-3192, Japan.
² Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan.
³ General Electric Yokogawa Medical Systems, Ltd., 4-7-127 Asahigaoka, Hino Tokyo 191-8503, Japan.
⁴ General Electric Medical Systems, W-801, 3200 N. Grandview Blvd., Waukesha, WI 53188.

OBJECTIVE. We investigated the effectiveness of software-triggered contrast-enhanced three-dimensional (3D) MR angiography in evaluating intracranial arteries.

SUBJECTS AND METHODS. We studied 38 patients with suspected brain lesions. Imaging was performed using a 1.5-T superconducting MR system with a commercially available head coil. To monitor signal intensity changes we used software to place a tracker volume at the basilar artery or the internal carotid artery. A 20-ml bolus of gadodiamide hydrate was administered through the antecubital vein at a rate of 2-4 ml/sec, followed by a saline flush. Three-dimensional MR angiography using a spoiled gradient-echo sequence with centric K-space ordering was triggered by the arrival of the contrast bolus in the tracker volume. Imaging times ranged from 12 to 20 sec. We used MR images to assess the effectiveness of contrast-enhanced 3D MR angiography in revealing intracranial arteries with minimal venous overlap.

RESULTS. The software triggered imaging on the arrival of the contrast bolus in 81.6% of examinations. In 77.6% of examinations, the resulting MR angiograms revealed intracranial arteries with minimal venous overlap.

CONCLUSION. Software-triggered contrast-enhanced 3D MR angiography with centric K-space ordering is a promising technique for viewing intracranial arteries.

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

This article has been cited by other articles:

				J. Alvarez-Linera, J. Benito-Leon, J. Escribano, J. Campollo, and R. Gesto Prospective Evaluation of Carotid Artery Stenosis: Elliptic Centric Contrast-Enhanced MR Angiography and Spiral CT Angiography Compared with Digital Subtraction Angiography AJNR Am. J. Neuroradiol., May 1, 2003; 24(5): 1012 - 1019. [Abstract] [Full Text] [PDF]

				A. Mallouhi, S. Felber, A. Chemelli, A. Dessl, A. Auer, M. Schocke, W. R. Jaschke, and P. Waldenberger Detection and Characterization of Intracranial Aneurysms with MR Angiography: Comparison of Volume-Rendering and Maximum-Intensity-Projection Algorithms Am. J. Roentgenol., January 1, 2003; 180(1): 55 - 64. [Abstract] [Full Text] [PDF]

				X. Leclerc, J.-F. Navez, J.-Y. Gauvrit, J.-P. Lejeune, and J.-P. Pruvo Aneurysms of the Anterior Communicating Artery Treated with Guglielmi Detachable Coils: Follow-Up with Contrast-Enhanced MR Angiography AJNR Am. J. Neuroradiol., August 1, 2002; 23(7): 1121 - 1127. [Abstract] [Full Text] [PDF]

				J. J. Yang, M. D. Hill, W. F. Morrish, M. E. Hudon, P. A. Barber, A. M. Demchuk, R. J. Sevick, and R. Frayne Comparison of Pre- and Postcontrast 3D Time-of-Flight MR Angiography for the Evaluation of Distal Intracranial Branch Occlusions in Acute Ischemic Stroke AJNR Am. J. Neuroradiol., April 1, 2002; 23(4): 557 - 567. [Abstract] [Full Text] [PDF]

				L. Remonda, P. Senn, A. Barth, M. Arnold, K.-O. Lovblad, and G. Schroth Contrast-Enhanced 3D MR Angiography of the Carotid Artery: Comparison with Conventional Digital Subtraction Angiography AJNR Am. J. Neuroradiol., February 1, 2002; 23(2): 213 - 219. [Abstract] [Full Text] [PDF]

				R. I. Farb, C. McGregor, J. K. Kim, M. Laliberte, J. A. Derbyshire, R. A. Willinsky, P. W. Cooper, D. G. Westman, G. Cheung, M. L. Schwartz, et al. Intracranial Arteriovenous Malformations: Real-Time Auto-triggered Elliptic Centric-ordered 3D Gadolinium-enhanced MR Angiography—Initial Assessment Radiology, July 1, 2001; 220(1): 244 - 251. [Abstract] [Full Text] [PDF]