Spectral Video in Image-Guided Microsurgical Applications: Integrating Imaging Technology into the Clinical Environment and Ergonomic Considerations

Bartczak, Piotr; Vrzáková, Hana; Bednarik, Roman; Iso-Mustajärvi, Matti; Hauta-Kasari, Markku; Jääskeläinen, Juha E.; Fraunberg, Mikael von und zu; Elomaa, Antti-Pekka

doi:10.1109/cbms.2018.00057

Cited by 1 publication

(1 citation statement)

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“…The camera employs a frame-based spectral system and a CMOS sensor to provide snapshot images in visible spectrum (VIS) and near-infrared (NIR) spectral ranges with resolution of 1024x1024 pixels. The camera was mounted to the operation microscope and did not limit microscope's mobility, manipulation, or balance, as opposed to the previous setups [21]. Fig.…”

Section: B Microscope Spectral Imaging Systemmentioning

confidence: 99%

Optimal Spectral Bands for Instrument Detection in Microscope-Assisted Surgery

Puustinen

Koskinen

Vrzáková

et al. 2020

2020 IEEE 33rd International Symposium on Computer-Based Medical Systems (CBMS)

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Optic image-guidance systems enable minimally invasive (MIS) approaches in surgery. However, available MIS-techniques limits both ergonomics and field of view (FoV), which can be detrimental for anatomical awareness and safe manipulation with tissues. Contemporary navigation techniques (i.e. neuronavigation) support spatial awareness during surgery. However, these techniques require timeconsuming instrumentation and lack real-time precision needed in soft-tissue surgery. In this work, we utilize operative microscopes FoV as an unobtrusive source to support MISnavigation with micro-instrument tracking. The FoV instrument tracking has been investigated in laparoscopy, however, high magnification, selection of instruments and bimanually variant characteristics of microneurosurgery make the current computational approaches challenging to adopt. In this work, we investigate potentials of spectral imaging for micro-instrument tracking. We present a spectral-imaging system suitable for the use at the operation rooms. Using a hyperspectral camera mounted to the side ocular of operation microscope and Xenon white light illumination, we collected samples of standard microsurgical instruments (reflective and non-reflective) that were positioned in a biological tissue (placenta). In the analysis of contrasts, we compared spectral images to traditional RGB. We observed 8-13% contrast enhancement with the optimal wavelength bands and 20.4% improvement in instrument-tracking time. Our results encourage application of wavelength-tuned cameras to improve efficiency of optic tracking in MIS-systems.

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Section: B Microscope Spectral Imaging Systemmentioning

confidence: 99%