ProjectCamC

Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

Camera Augmented Mobile C-arm

Camera Augmented Mobile C-arm

In medical collaboration with:
Dr. Sandro-Michael Heining, Klinikum Innenstadt, LMU, Munich, Germany
Dr. Simon Weidert, Klinikum Innenstadt, LMU,Munich, Germany
Prof. Ekkehard Euler, Klinikum Innenstadt, LMU, Munich, Germany
Prof. Wolf Mutschler, Klinikum Innenstadt, LMU, Munich, Germany

Scientific Director: Prof. Nassir Navab

Contact Person(s): Prof. Nassir Navab and M.Sc. Lejing Wang

In industrial collaboration with:
Dr. Rainer Graumann, Siemens Medical SP, Erlangen Germany

Keywords: Medical Imaging, Computer-Aided Surgery, Medical Augmented Reality

Abstract

Mobile C-arms are an everyday tool to acquire X-ray images in the operating room during surgery. The Camera Augmented Mobile C-arm (CamC) system augments a regular mobile C-arm by a video camera for X-ray and video image overlay. Thanks to the mirror construction and one time calibration of the device, the acquired X-ray images are co-registered with the video images without any further calibration or registration during the intervention. The CamC system can support a wide range of potential clinical applications, such as needle guidance, interlocking of intramedullary nails, and pedicle screw placement.

Pictures

Figure 1: Mockup of the CamC System.
Figure 2: The attached camera and the double mirror construction.
Figure 3: Extended system setup with two attached cameras.
Figure 4: Visualization shows the overlay of the x-ray onto a foot.

Videos

As an extension the camera augmented mobile c-arm system by Navab et al. 1999 we developed a multi-view system which offers 3D navigation during trauma surgery and orthopedic procedures. We use an additional video camera in an orthogonal arrangement to the first video camera and a minimum of two X-ray images.

Standard X-ray images have a narrow field of view and can not visualize the entire long bone on a single image. We propose a novel method to generate panoramic X-ray images by using the Camera Augmented Mobile C-arm. This advanced mobile C-arm system can register the X-ray image with an optical image by construction, which facilitates the generation of panoramic X-ray images based on first stitching the optical images and then embedding the X-ray images.

How was it done?

A prototype for next generation of CAMC user interface - Visual Marker Based Advanced UI. In the prototype, we show that the X-ray transparency can be adjusted by simply moving a finger through a marker-bar

Publications

Team

Contact Person(s)

Lejing Wang
M.Sc. Lejing Wang
Nassir Navab
Prof. Dr. Nassir Navab

Working Group

Benoit Diotte
Benoit Diotte
Ekkehard Euler
Prof. Dr. Ekkehard Euler
Florian Pichlmeier
Florian Pichlmeier
Pascal Fallavollita
Dr. Pascal Fallavollita
Simon Weidert
Dr. med. Simon Weidert
Xin Chen
Dipl.-Inf. Univ. Xin Chen

Alumni

Hauke Heibel
Dr. Hauke Heibel
Joerg Traub
Dr. Joerg Traub
Rui Zou
Rui Zou
Selim Benhimane
Dr. Eng. Selim Benhimane
Stefan Wiesner
Dipl.-Inf. Univ. Stefan Wiesner
Tassilo Klein
Dipl.-Inf. Univ. Tassilo Klein

Location



Ludwig-Maximilians-Universität München
Chirurgische Klinik und Poliklinik - Innenstadt, AG CAS
Nussbaumstr. 20
80336 München

Room: C2.06
Tel.: +49 89 5160-3615
Tel.: +49 89 5160-3635
Fax: +49 89 5160-3630
Visit our lab at Klinikum Innenstadt.



internal project page

Please contact Prof. Nassir Navab and M.Sc. Lejing Wang for available student projects within this research project.

Edit | Attach | Refresh | Diffs | More | Revision r1.30 - 12 Sep 2007 - 14:36 - MartinHorn

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