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Titolo:
Comparison of different 3D navigation systems by a clinical "user"
Autore:
Cartellieri, M; Kremser, J; Vorbeck, F;
Indirizzi:
Univ Vienna, Gen Hosp, Dept Otorhinolaryngol, A-1090 Vienna, Austria Univ Vienna Vienna Austria A-1090 orhinolaryngol, A-1090 Vienna, Austria Univ Vienna, Dept Radiol, A-1090 Vienna, Austria Univ Vienna Vienna Austria A-1090 a, Dept Radiol, A-1090 Vienna, Austria
Titolo Testata:
EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
fascicolo: 1, volume: 258, anno: 2001,
pagine: 38 - 41
SICI:
0937-4477(200101)258:1<38:COD3NS>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENDOSCOPIC SINUS SURGERY; FRAMELESS; COMPLICATIONS; NEUROSURGERY; PREVENTION; ACCURACY;
Keywords:
3D navigation system; system accuracy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Cartellieri, M Univ Vienna, Gen Hosp, Dept Otorhinolaryngol, Wahringer Gurtel 18-20, A-1090 Vienna, Austria Univ Vienna Wahringer Gurtel 18-20 Vienna Austria A-1090 a
Citazione:
M. Cartellieri et al., "Comparison of different 3D navigation systems by a clinical "user"", EUR ARCH OT, 258(1), 2001, pp. 38-41

Abstract

Three-dimensional navigation systems are routinely used in endoscopic skull base surgery neurosurgery, maxillo-facial and endoscopic sinus surgery. Their precision can, however, change in the course of one experiment. We have compared five different 3D navigation systems and discuss here possible reasons for the limits of system precision. A plexiglass cube an which test points were marked served as a test-model. Two well-trained system users measured the distances between the test points in each of the five systems. The results were compared with reference data provided by the NUMEREX(TM) device at the Technical University of Vienna. The accuracy data shown by all these 3D navigation systems ranged from 0.0 mm to 6.67 mm. The accuracy data of a system calculated in advance did not always correspond with the system precision on the screen. The system precision in the center of the cube was higher than on its surface, which made us conclude that the angle between the tracker system and the pointing device touching the test point may be critical for system precision. Applying an automatic registration step did not result in greater system precision. Slice thickness and the angle of the pointing device seem to be responsible for system precision.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 02:22:52