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Abstract #3736

Adaptive Synthesis of Prior Image and New Acquired Data in Repetitive 3D Examinations

Guobin Li1, Maxim Zaitsev1, Esther Meyer2, Dominik Paul2, Jrgen Hennig1

1University Medical Center Freiburg, Freiburg, Germany; 2Siemens Healthcare, Erlangen, Germany

High resolution isotropic 3D MR imaging is often repeatedly performed for preoperative evaluation and postoperative follow-up. Usually only a little information is updated each time in a following examination compared to the previous one if neglecting the change of pose. an adaptive synthesis of the prior data and the new acquired data from separate 3D examinations is presented. It shows that the information synthesis can help to reduce residual aliasing artifacts in Compressed Sensing (CS) imaging with highly undersampled k-space.

Keywords

absolute acceleration acceptable accuracy acquisition adaptive adaptively aliasing aligned aligning amount applied arrows artifacts avoid beyond brain bulk central channel clinical coarse coil combined comparability compressed concepts content converted corrected dashed depicted determined developed domain dynamic eliminate empirically employed erroneous error errors especially evaluation examination examinations example explores extracted extracts false filter filtering formula framework full help highly identical improve improves incomplete incorporated intensities intensity interrupted introduced inversion isotropic little long longitudinal matrix maxim medical might month motion object occurs often overall parallel pass patient patients pattern phys portion pose position postoperative preoperative prior profile profiles promote promoted quality quantify randomly real reconstructed reconstruction reduce reduced reduces redundancy registration repeatedly repetitive replacement report residual resolution restore restored sampled sampling scanner sensing sensitivities separate similarity slice solid space sparseness strong strongly subtracting successfully successive suppressed surgery synthesis synthesized synthesizing system taken technical temporal therapeutic threshold trio uncertainty underlying usually view volumes volunteers