Agradecimientos:
Funding information: (Comunidad de Madrid), Grant/Award
Number: TOPUS‐CM S2013/MIT‐3024; (Ministerio de Economía y Competitividad,
ISCIII), Grant/Award Number: PI15/02121. DTS14/00192. TEC2013–48251‐C2–1‐R,
FEDER funds
Proyecto:
Comunidad de Madrid. S2013/MIT‐3024/TOPUS‐CM Gobierno de España. PI15/02121 Gobierno de España. DTS14/00192 Gobierno de España. TEC2013-48251-C2-1-R
Background. A difficulty in computer-assisted interventions is acquiring the patient's anatomy intraoperatively. Standard modalities have several limitations: low image quality (ultrasound), radiation exposure (computed tomography) or high costs (magnetic resoBackground. A difficulty in computer-assisted interventions is acquiring the patient's anatomy intraoperatively. Standard modalities have several limitations: low image quality (ultrasound), radiation exposure (computed tomography) or high costs (magnetic resonance imaging). An alternative approach uses a tracked pointer; however, the pointer causes tissue deformation and requires sterilizing. Recent proposals, utilizing a tracked conoscopic holography device, have shown promising results without the previously mentioned drawbacks. Methods. We have developed an open-source software system that enables real-time surface scanning using a conoscopic holography device and a wide variety of tracking systems, integrated into pre-existing and well-supported software solutions. Results. The mean target registration error of point measurements was 1.46 mm. For a quick guidance scan, surface reconstruction improved the surface registration error compared with point-set registration. Conclusions. We have presented a system enabling real-time surface scanning using a tracked conoscopic holography device. Results show that it can be useful for acquiring the patient's anatomy during surgery.[+][-]