Motion Compensation for DynaCT Acquisitions With modern flat panel C-arm systems, soft tissue imaging
is possible during intervention. This can be of high
potential in the field of neuroradiologic interventions,
when a stroke is to be classified as either ischemic or
hemorrhagic. Within the interventional stroke therapy
(Mechanical Thrombectomy), DynaCT has the potential to
substitute CT and MRT as standard diagnostic modalities.
By this substitution, imaging and intervention could be
done within one room, making the therapy much faster and
thus increasing the quality of stroke therapy.
To reach this goal, the detectability of cerebral
bleedings under DynaCT acquisitions must be as reliable
as it is using CT. The acquisition of projection data for
reconstruction is performed by rotating the C-arm around
the patient. One rotation is typically performed in 20
seconds, increasing the risk of motion induced artifacts
compared to CT, where a single rotation is performed in
less than a second. Thus, a major drawback of DynaCT
compared to CT is patient motion. This project aims at
compensating motion artifacts in DynaCT acquisitions with
the goal of a reliable detectability of cerebral
bleedings. | Project manager: Prof. Dr.-Ing. habil. Andreas Maier
Project participants: Dr.-Ing. Alexander Preuhs
Keywords: Motion Compensation, C-arm CT, DynaCT, Stroke, Head-Imaging
Duration: 1.4.2017 - 1.4.2020
Sponsored by: Siemens Healthcare GmbH
Contact: Preuhs, Alexander Phone +49 9131 85 28982, Fax +49 9131 27270, E-Mail: alexander.preuhs@fau.de
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