Abstract #2513
Non-contrast-enhanced MR angiography of the thoracic central veins
Andrew Nicholas Priest 1 , Gavin Low 1 , Martin John Graves 1 , and David John Lomas 1
1
Radiology, Addenbrooke's Hospital and
University of Cambridge, Cambridge, United Kingdom
Imaging of the thoracic central veins is important for
patients with central venous obstruction or with
restricted venous access, where contrast-agent
administration is difficult. We have developed a
subtraction-based non-contrast-enhanced MR angiography
method for central vein imaging, using a balanced SSFP
readout with dual iMSDE flow-suppression, respiratory
navigator gating, spatial saturation, and dual-inversion
recovery for fat suppression. Comparisons in six healthy
volunteers scored this approach more highly in terms of
image quality, artifacts and background suppression, in
comparison with alternative versions using spectral fat
suppression or no fat suppression, and with breath-hold
techniques.
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