Comparison of Deep Brain Stimulation Lead Targeting Accuracy and Procedure Duration between 1.5- and 3-Tesla Interventional Magnetic Resonance Imaging Systems: An Initial 12-Month Experience.
| Autor: | Southwell DG; Department of Neurological Surgery, University of California, San Francisco, Calif., USA., Narvid JA, Martin AJ, Qasim SE, Starr PA, Larson PS |
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| Jazyk: | angličtina |
| Zdroj: | Stereotactic and functional neurosurgery [Stereotact Funct Neurosurg] 2016; Vol. 94 (2), pp. 102-7. Date of Electronic Publication: 2016 Apr 20. |
| DOI: | 10.1159/000443407 |
| Abstrakt: | Background: Interventional magnetic resonance imaging (iMRI) allows deep brain stimulator lead placement under general anesthesia. While the accuracy of lead targeting has been described for iMRI systems utilizing 1.5-tesla magnets, a similar assessment of 3-tesla iMRI procedures has not been performed. Objective: To compare targeting accuracy, the number of lead targeting attempts, and surgical duration between procedures performed on 1.5- and 3-tesla iMRI systems. Methods: Radial targeting error, the number of targeting attempts, and procedure duration were compared between surgeries performed on 1.5- and 3-tesla iMRI systems (SmartFrame and ClearPoint systems). Results: During the first year of operation of each system, 26 consecutive leads were implanted using the 1.5-tesla system, and 23 consecutive leads were implanted using the 3-tesla system. There was no significant difference in radial error (Mann-Whitney test, p = 0.26), number of lead placements that required multiple targeting attempts (Fisher's exact test, p = 0.59), or bilateral procedure durations between surgeries performed with the two systems (p = 0.15). Conclusions: Accurate DBS lead targeting can be achieved with iMRI systems utilizing either 1.5- or 3-tesla magnets. The use of a 3-tesla magnet, however, offers improved visualization of the target structures and allows comparable accuracy and efficiency of placement at the selected targets. (© 2016 S. Karger AG, Basel.) |
| Databáze: | MEDLINE |
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