A Comparative Study of Fiducial-Based and Fiducial-Less Registration Utilizing the O-Arm.
Stereotact Funct Neurosurg
; 97(2): 83-93, 2019.
Article
em En
| MEDLINE
| ID: mdl-31085935
ABSTRACT
BACKGROUND:
Frameless stereotactic surgery utilizing fiducial-based (FB) registration is an established tool in the armamentarium of deep brain stimulation (DBS) surgeons. Fiducial-less (FL) registration via intraoperative CT, such as the O-arm, has been routinely used in spine surgery, but its accuracy for DBS surgery has not been studied in a clinical setting.OBJECTIVE:
We undertook a study to analyze the accuracy of the FL technique in DBS surgery and compare it to the FB method.METHODS:
In this prospective cohort study, 97 patients underwent DBS surgery using the NexFrame and the O-arm registration stereotactic system. Patients underwent FB (n = 50) registration from 2015 to 2016 and FL (n = 47) O-arm registration from 2016 to 2017.RESULTS:
The radial errors (RE) and vector/euclidean errors of FB and FL registration were not significantly different. There was no difference in additional passes between methods, but there was an increase in the number of RE ≥2.5 mm in the FL method.CONCLUSION:
Although there was no statistically significant difference in RE or the need for additional passes, the increased number of errors ≥2.5 mm with the FL method (17 vs. 4% in FB) indicates the need for further study. We concluded that O-arm images of the implants should be utilized to assess and correct for this error.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnicas Estereotáxicas
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Cirurgia Assistida por Computador
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Estimulação Encefálica Profunda
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Marcadores Fiduciais
Tipo de estudo:
Etiology_studies
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Incidence_studies
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Observational_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article