Comparison of DANTE- and iMSDE-based methods for subtractive NCE-MRA of the central thoracic vein

Patients with central venous obstruction or restricted venous access may benefit from venous imaging, but contrast agent administration is not possible in this group. We investigated four free-breathing (navigator-gated) and four breath-hold subtractive NCE-MRA sequences, assessing their utility in imaging the superior vena cava (SVC), innominate veins and subclavian veins, in 12 healthy volunteers. These sequences combine DANTE or dual iMSDE flow-suppression methods with either balanced SSFP or gradient echo readouts. The navigator-gated methods always gave diagnostic image quality in the SVC and innominate veins, which are hardest to visualise using ultrasound, with DANTE methods performing slightly better than iMSDE.

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