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Titolo:
Comparison of frameless stereotactic systems: Accuracy, precision, and applications
Autore:
Benardete, EA; Leonard, MA; Weiner, HL;
Indirizzi:
NYU, Med Ctr, Dept Neurosurg, New York, NY 10016 USA NYU New York NY USA 10016 Med Ctr, Dept Neurosurg, New York, NY 10016 USA
Titolo Testata:
NEUROSURGERY
fascicolo: 6, volume: 49, anno: 2001,
pagine: 1409 - 1415
SICI:
0148-396X(200112)49:6<1409:COFSSA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
CLINICAL-EXPERIENCE; IMAGE REGISTRATION; NEUROSURGERY; MICROSCOPE; DIGITIZER; SURGERY; WAND;
Keywords:
accuracy; precision; stereotactic techniques;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Benardete, EA NYU, Med Ctr, Dept Neurosurg, 560 1st Ave, New York, NY 10016 USA NYU 560 1st Ave New York NY USA 10016 New York, NY 10016 USA
Citazione:
E.A. Benardete et al., "Comparison of frameless stereotactic systems: Accuracy, precision, and applications", NEUROSURGER, 49(6), 2001, pp. 1409-1415

Abstract

OBJECTIVE: Frameless stereotactic systems have become an integral part of neurosurgical practice. At our center, we recently introduced for clinical use a small, portable, frameless stereotactic system, namely the Cygnus PFSsystem (Compass International, Rochester, MN). The purpose of this study was to compare the accuracy of the Cygnus PFS system with that of two largersystems that are also currently in use at our institution, i.e., the SMN system (Zeiss, Oberkochen, Germany) and the ISG viewing wand (ISG Technologies, Toronto, Canada). These systems represent three kinds of frameless stereotactic technologies that are commercially available. Each system uses a different method of spatial localization, i.e., mechanical linkage (ISG system), magnetic field digitization (Cygnus system), or optical technology (SMN system). METHODS: Using a stereotactic "phantom," we measured the accuracies of allthree systems with identical data sets. The errors in localization in three-dimensional space for nine targets were calculated by using 10 magnetic resonance imaging data sets. The precision of each system was also calculated. RESULTS: With this experimental protocol, the Cygnus system attained a mean accuracy of 1.90 +/- 0.7 mm, the ISG viewing wand system a mean accuracy of 1.67 +/- 0.43 mm, and the SMN microscope a mean accuracy of 2.61 +/- 0.99 mm. The precision values were not significantly different among the systems. CONCLUSION: We observed only small differences in accuracy and precision among these three systems. We briefly review the advantages and disadvantages of each system and note that other factors, such as portability, ease of use, and microscope integration, should influence the selection of a frameless stereotactic system.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 23:38:30