Time-of-arrival mapping at three-dimensional timeresolved contrast-enhanced MR angiography

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This study was HIPAA compliant and institutional review board approved, and informed consent was obtained from all volunteers. The authors describe a method for generating a time-of-arrival (TOA) map of intravenously administered contrast material, as observed in a time series of three-dimensional (3D) contrast material-enhanced magnetic resonance (MR) angiograms. The method may enable visualization and interpretation, on one 3D image, of the temporal enhancement patterns that occur in the vasculature. Colorization of TOA values may further aid interpretation. The quality of the results depends not only on the adequacy of the frame rate, spatial resolution, and signal-to-noise ratio of the MR image acquisition method but also on the accuracy and clarity with which the leading edge of the contrast material bolus is depicted. The criteria for optimizing these parameters are described. The TOA mapping technique is demonstrated by using vascular studies of the hands, brain, and lower leg regions.

Original languageEnglish (US)
Pages (from-to)532-542
Number of pages11
JournalRadiology
Volume253
Issue number2
DOIs
StatePublished - Nov 2009

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Magnetic Resonance Angiography
Contrast Media
Magnetic Resonance Spectroscopy
Image Enhancement
Health Insurance Portability and Accountability Act
Research Ethics Committees
Signal-To-Noise Ratio
Informed Consent
Blood Vessels
Volunteers
Leg
Angiography
Hand
Brain

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Time-of-arrival mapping at three-dimensional timeresolved contrast-enhanced MR angiography. / Riederer, Stephen J; Haider, Clifton R; Borisch, Eric A.

In: Radiology, Vol. 253, No. 2, 11.2009, p. 532-542.

Research output: Contribution to journalArticle

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