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Updated: Jul 10, 2026

Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model
Published on: September 14, 2009
Is there replacement for percentage stenosis in characterizing occlusive vascular disease?
1Department of Radiology, Weill Medical College of Cornell University, 525 E 68th St, New York, NY 10022, USA. map2008@med.cornell.edu
Abstract:
Characterization of vascular lesions on the basis of visual estimation of percentage stenosis is a valuable but limited procedure. In this issue, Lum et al (1) describe a fast, noninvasive four-dimensional MR method for accurate determination of pressure gradient maps, which correlate with direct pressure gradient measurements across vascular lesions in swine. This noninvasive determination of hemodynamic significance has potential to become a major advance in the diagnosis and management of vascular diseases, once it is verified in the clinical setting.
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