Contrast-enhanced MR angiography with frequency-dependent mask subtraction
Du J et al. - One of the main challenges for high-resolution contrast-enhanced magnetic resonance angiography is the limited signal-to-noise ratio. These partial subtraction techniques were compared with conventional mask subtraction in terms of SNR and artifact power. An SNR gain up to 37% was achieved without significant artifact power increase for quarter-subtraction where only the central one quarter k-space data were subject to mask subtraction. [more...]
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