To quantitatively evaluate changes induced by the application of a femoral blood-pressure cuff (BPC) on run-off magnetic resonance angiography (MRA), which is a method generally previously proposed to reduce venous contamination in the leg.

Materials and Methods

This study was Health Insurance Portability and Accountability Act (HIPAA)- and Institutional Review Board (IRB)-compliant. We used time-resolved gradient-echo gadolinium (Gd)-enhanced MRA to measure BPC effects on arterial, venous, and soft-tissue enhancement. Seven healthy volunteers (six men) were studied with the BPC applied at the mid-femoral level unilaterally using a 1.5T MR system after intravenous injection of Gd-BOPTA. Different statistical tools were used such as the Wilcoxon signed rank test and a cubic smoothing spline fit.

Results

We found that BPC application induces delayed venous filling (as previously described), but also induces significant decreases in arterial inflow, arterial enhancement, vascular-soft tissue contrast, and delayed peak enhancement (which have not been previously measured).

Conclusion

REFERENCES

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Citing Literature

Volume29, Issue6

June 2009

Pages 1450-1456

Lower extremities magnetic resonance angiography with blood pressure cuff compression: Quantitative dynamic analysis

Abstract

Purpose

Materials and Methods

Results

Conclusion

REFERENCES

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Lower extremities magnetic resonance angiography with blood pressure cuff compression: Quantitative dynamic analysis

Abstract

Purpose

Materials and Methods

Results

Conclusion

REFERENCES

Citing Literature

References

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