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 Zhang, H. L. Articles by Prince, M. R. Search for Related Content PubMed PubMed Citation Articles by Zhang, H. L. Articles by Prince, M. R. Social Bookmarking                      What's this? Hotlight (NEW!) What's Hotlight?

Decreased Venous Contamination on 3D Gadolinium-Enhanced Bolus Chase Peripheral MR Angiography Using Thigh Compression

¹ Cornell MRI, Weill Medical College of Cornell University, 416 E 55th St., New York, NY 10022.
² Department of Surgery, Columbia University College of Physicians and Surgeons, 630 W168 St., New York, NY 10032.

OBJECTIVE. We evaluated the potential for improving bolus chase peripheral MR angiography in patients with fast arterial flow using thigh compression to prevent venous contamination.

SUBJECTS AND METHODS. We performed bolus chase peripheral MR angiography in 32 consecutive patients in whom the travel time for a contrast agent to reach the popliteal artery trifurcation was less than 25 sec. Thigh compression was applied by a tourniquet (n = 13) or blood pressure cuff inflated to 60 mm Hg (n = 19). We compared the results with those of 36 consecutive patients who underwent angiography without thigh compression. The effect of thigh compression on arterial flow and tissue enhancement was assessed in patients with symmetric travel time in both legs by applying compression to one leg during the time-resolved 2D-projection MR angiography with 6 mL of gadolinium. On 3D bolus chase MR angiography, thigh compression was applied bilaterally. Venous contamination on the 3D images of the calf was graded as 0, none; 1, trace; 2, mild; 3, moderate; and 4, severe. Signal-to-noise ratio was measured in the popliteal artery.

RESULTS. Thigh compression slowed the arterial travel time by a mean ± SD of 4.7 ± 2 sec (p < 0.001) with a blood pressure cuff and 3.1 ± 1 sec (p < 0.001) with a tourniquet. Blood pressure cuffs reduced the score of venous contamination on the calf station from 1.9 to 0.4 (p < 0.05) for intermediate flow (contrast travel time, 20–25 sec) and from 2.5 to 0.9 (p < 0.05) for fast flow (< 20 sec). Thigh compression increased the popliteal artery signal-to-noise ratio (81 vs 52, p < 0.001).

CONCLUSION. Thigh compression with blood pressure cuffs inflated to 60 mm Hg slows down arterial flow, increases arterial signal-to-noise ratio, and reduces venous contamination on 3D gadolinium-enhanced bolus chase peripheral MR angiography.

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

This article has been cited by other articles:

				D. J. Dinter, K. W. Neff, G. Visciani, R. Lachmann, C. Weiss, S. O. Schoenberg, and H. J. Michaely Peripheral Bolus-Chase MR Angiography: Analysis of Risk Factors for Nondiagnostic Image Quality of the Calf Vessels--A Combined Retrospective and Prospective Study Am. J. Roentgenol., July 1, 2009; 193(1): 234 - 240. [Abstract] [Full Text] [PDF]

				R. Habibi, M. S. Krishnam, D. G. Lohan, F. Barkhordarian, M. Jalili, R. S. Saleh, S. G. Ruehm, and J. P. Finn High-Spatial-Resolution Lower Extremity MR Angiography at 3.0 T: Contrast Agent Dose Comparison Study Radiology, August 1, 2008; 248(2): 680 - 692. [Abstract] [Full Text] [PDF]

				H. Ersoy and F. J. Rybicki MR Angiography of the Lower Extremities Am. J. Roentgenol., June 1, 2008; 190(6): 1675 - 1684. [Abstract] [Full Text] [PDF]

				A. M. Kelly, P. Cronin, H. K. Hussain, F. J. Londy, D. B. Chepeha, and R. C. Carlos Preoperative MR Angiography in Free Fibula Flap Transfer for Head and Neck Cancer: Clinical Application and Influence on Surgical Decision Making Am. J. Roentgenol., January 1, 2007; 188(1): 268 - 274. [Abstract] [Full Text] [PDF]

				T. M. Gluecker, G. Bongartz, H. P. Ledermann, and D. Bilecen MR Angiography of the Hand with Subsystolic Cuff-Compression Optimization of Injection Parameters Am. J. Roentgenol., October 1, 2006; 187(4): 905 - 910. [Abstract] [Full Text] [PDF]

				A. J. Madhuranthakam, H. H. Hu, D. G. Kruger, J. F. Glockner, and S. J. Riederer Contrast-enhanced MR Angiography of the Peripheral Vasculature with a Continuously Moving Table and Modified Elliptical Centric Acquisition. Radiology, July 1, 2006; 240(1): 222 - 229. [Abstract] [Full Text] [PDF]

				F. S. Pereles, J. D. Collins, J. C. Carr, C. Francois, M. D. Morasch, R. M. McCarthy, E. A. Krupinski, G. M. Butler, and J. P. Finn Accuracy of Stepping-Table Lower Extremity MR Angiography with Dual-Level Bolus Timing and Separate Calf Acquisition: Hybrid Peripheral MR Angiography Radiology, July 1, 2006; 240(1): 283 - 290. [Abstract] [Full Text] [PDF]

				H. L. Zhang, N. M. Khilnani, M. R. Prince, P. A. Winchester, P. Golia, P. Veit, R. Watts, and Y. Wang Diagnostic Accuracy of Time-Resolved 2D Projection MR Angiography for Symptomatic Infrapopliteal Arterial Occlusive Disease Am. J. Roentgenol., March 1, 2005; 184(3): 938 - 947. [Abstract] [Full Text] [PDF]

				G H Roditi and G Harold Magnetic resonance angiography and computed tomography angiography for peripheral arterial disease Imaging, August 1, 2004; 16(3): 205 - 229. [Abstract] [Full Text] [PDF]