Abstract #2346
Caipirinha acceleration for intracranial 3D DCE MRI: Determination of the optimal sampling pattern
Michael Ingrisch 1 , Michael Peller 1 , Birgit Ertl-Wagner 2 , Maximilian F Reiser 2 , and Olaf Dietrich 1
1
Josef-Lissner-Laboratory for Biomedical
Imaging, Institute for Clinical Radiology,
Ludwig-Maximilians-University Hospital, Mnchen,
Germany,
2
Institute
for Clinical Radiology, Ludwig-Maximilians-University
Hospital, Mnchen, Germany
Acceleration of the image acquisition is an ever
important technique in dynamic contrast-enhanced (DCE)
MRI. Conventional parallel imaging is limited by the SNR
loss at higher acceleration factors and by potential
reconstruction artefacts. A recently introduced method,
CAIPIRINHA, promises a more robust image reconstruction
by modifying the k-space sampling schema. In the present
study, we perform phantom measurements to identify the
optimal CAIPIRINHA sampling pattern for a 3D DCE MRI
perfusion measurement with coverage of the entire
neurocranium at high temporal resolution, and we
demonstrate the application of CAIPIRINHA acceleration
for cerebral DCE MRI in patient measurements
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