Computer Assisted Neurosurgery

In collaboration with

Prof. Andreas Raabe (Neuro Surgery Inselspital Bern)
Dr. med. Lukas Andereggen (Neuro Surgery, Inselspital Bern)
Dr. med. Jan Gralla (Neuro Radiology, Inselspital Bern)

Intracranial aneurysms are a common vascular complication. For an optimal treatment, either by using stents or surgical intervention, its location, the perfusion situation and the relative position of other anatomical structures have to be known. The decision for either way of treatment is typically difficult. We are supporting this decision finding by creating 3D models of the anatomical situation. These models are created from the available image data (CT, MRI, Angio) and manufactured using a 3D printing system.

Angiography based 3D Flow Reconstruction

In collaboration with

Prof. Andreas Raabe (Neuro Surgery Inselspital Bern)
Dr. med. Lukas Andereggen (Neuro Surgery, Inselspital Bern)
Prof. Gerhard Schroth (Neuro Radiology, Inselspital Bern)
Dr. med. Jan Gralla (Neuro Radiology, Inselspital Bern)

In neuroradiology, three-dimensional rotational angiography (3D-RA) and 2D digital substraction angiograph (DSA) are used for diagnosis and monitor of intracranial aneurysms. Rotational angiography provides highly accurate images of the vessel geometry. 2D digital subtraction angiography provides additional insight to the flow dynamics and the effective blood volume flow. It is clinically difficult to precisely estimate flow dynamics in biplanar DSA imaging. In this work we investigate the feasibility of mapping blood flow information offered by 2D biplane angiography into 3D vessel models that are extracted from a reconstructed rotational angiography data set.

Angiography Neuronavigation

In collaboration with
Prof. Andreas Raabe (Neuro Surgery Inselspital Bern)
Dr. med. Lukas Andereggen (Neuro Surgery, Inselspital Bern)

Based on high resolution imaging of the cranial vessel structures using 3D rotational angiography data we are identifiying possibilities for an advanced neurosurgical navigation. Based on this approach, spatial orientation during surgical procedures will be increased. Topics of the research include highly accurate registration methods, identification of suitable instrumentation and their clinical implementation