Live 3D transmission of surgical interventions from the German Surgeons Congress

The LUX AV company uses the Christie Mirage HD20K-J 3D projector in a Full HD Dual Stream transmission from an operating room on the occasion of the 129th Annual Congress of the German Society of Surgery (DGCH) held at the International Congress Center in Berlin.

Once a year, German surgeons meet at the Congress of the German Society of Surgery (DGCH) to discuss the latest innovations in research and science as well as new developments in medical technology and their impact on surgical intervention. This year, the DGCH has carried out its 129 annual conference in the city of Berlin, entrusting the technical execution to the company LUX OFF, partner the Christie. Apart from audiovisual technology, media management system deployed, specifically developed by LUX AV, which ensures that all participants can present their presentations and videos on screen in the right room and at the right time, and control them without any problem. Regarding projection technology, event experts trusted the Christie Mirage HD20K-J, a 3D projector belonging to the new Christie Mirage J Series.

The phrase “what cannot be said, can be taught” once delivered by Ludwig Wittgenstein is especially appropriate for the Congress of Surgeons, that far from being limited to conferences, It also broadcasts live broadcasts from various clinics to allow congressmen to participate in the details.. But live transmission from an operating room represents a considerable challenge given the enormous volume of data to be transmitted in seconds and without the assistance of the technical team that serves as support., For example, to television networks. At the same time, It is crucial that the transmission does not interfere with the operation process.

During two days of the congress, Four hours of minimally invasive surgical interventions were transmitted to the ICC from eight operating rooms in Berlin and Hildesheim in full HD dual stream format.. Quite a premiere, as it constitutes the first satellite transmission of this type carried out in Germany. In the dual stream transmission process, the two perspectives are output in two separate signal streams, to a resolution of 1920×1080 pixels each. In these moments, This is the highest quality process but also the most complex since, to maintain the 3D effect, the two signals must be perfectly synchronized during the entire period.

Since 3D video laparoscopes were only used in half of the operating rooms, 2D and 3D signals had to be mixed with a Christie Spyder X20 with 3D option, ready for signal transmission. The Spyder X20 is a hardware-based display management processor and universal routing mixer, with a bandwidth of 20 megapixels, which allows for edge blurring and image-in-image, but above all, mixing and scaling various fonts and formats.

stereo projector 3 chip DLP

For the projection, the Christie Mirage HD20K-J was chosen. The high-performance stereo projector 3 DLP chip was a success thanks to its homogeneous and chromatically uniform images and its indispensable dual HD-SDI feed. With its compact design and light output of 18.000 ANSI lumens, projected the images on a large silver screen 750 x 420 cm built for the purpose.

Achim Hassebrauk, director of LUX AV Live Broadcast Section, has explained why they opted for this projection technology: “For our 3D projects we prefer circular polarization filter technology because, with her, both the image quality and the good value for money of the projection hardware and the 3D glasses are very convincing. In this case, we decided on a Christie Mirage HD20K-J with Z screen. With the extraordinary light production and color fidelity of xenon lamps and with the dual SD/HD-SDI power module, the Christie Mirage HD20K-J constitutes, definitely, the first choice for 3D and live medical broadcasts”.