RSNA 2007 

Abstract Archives of the RSNA, 2007


SSK13-05

Dynamic Gadolinium Time-resolved Magnetic Resonance Angiography (MRA) in Pediatric Cerebrovascular Disease

Scientific Papers

Presented on November 28, 2007
Presented as part of SSK13: Pediatric (Neuroradiology)

Participants

Robert A. Zimmerman MD, Presenter: Nothing to Disclose
Larissa T. Bilaniuk MD, Abstract Co-Author: Nothing to Disclose
Erin Simon Schwartz MD, Abstract Co-Author: Nothing to Disclose
Avrum Nathaniel Pollock MD, Abstract Co-Author: Nothing to Disclose
Tamara Feygin MD, Abstract Co-Author: Nothing to Disclose
Deborah M. Zarnow MD, Abstract Co-Author: Nothing to Disclose
Arastoo Vossough MD, PhD, Abstract Co-Author: Nothing to Disclose
Abram Voorhees, Abstract Co-Author: Nothing to Disclose
Christine Harris, Abstract Co-Author: Nothing to Disclose
et al, Abstract Co-Author: Nothing to Disclose
et al, Abstract Co-Author: Nothing to Disclose

PURPOSE

To evaluate the utility of dynamic time-resolved gadolinium-enhanced 3D MRA utilizing a new sequence (TWIST) in pediatric patients with cerebrovascular disease.

METHOD AND MATERIALS

Twenty children with suspected or known cerebrovascular disease, age 1 to 18 years, received not only conventional 3D time-of-flight MRA, but a post-gadolinium bolus time-resolved study for comparison.

RESULTS

Dynamic MRA proved useful in 50% of the patients studied, demonstrating delay or absence of flow in patients with distal internal carotid artery stenosis or occlusion. Reversal of flow was also seen in steal situations as well as alterations in blood flow dynamics accompanying vascular malformations.

CONCLUSION

Dynamic gadolinium-enhanced MRA adds a second dimension to routine MRA, that of flow alteration over time, that adds to our understanding of pediatric cerebrovascular disease.

CLINICAL RELEVANCE/APPLICATION

The use of time-resolved MRA may circumvent the need for conventional cerebral arteriography.

Cite This Abstract

Zimmerman, R, Bilaniuk, L, Schwartz, E, Pollock, A, Feygin, T, Zarnow, D, Vossough, A, Voorhees, A, Harris, C, et al, , et al, , Dynamic Gadolinium Time-resolved Magnetic Resonance Angiography (MRA) in Pediatric Cerebrovascular Disease.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5007860.html