Evaluation of MRI issues for a new neurological implant, the Sensor Reservoir.
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| Title: | Evaluation of MRI issues for a new neurological implant, the Sensor Reservoir. |
|---|---|
| Authors: | Shellock, Frank G.1 frank.shellock@mrisafety.com, Knebel, Jörg2 joerg.knebel@miethke.com, Prat, Angelina D.3 angelina_prat@yahoo.com |
| Source: | Magnetic Resonance Imaging (0730725X). Sep2013, Vol. 31 Issue 7, p1245-1250. 6p. |
| Subjects: | Magnetic resonance imaging, Neurosurgery, Noninvasive diagnostic tests, Surgical drainage, Contrast media, Cerebrospinal fluid |
| Abstract: | Abstract: Background and Purpose: A new neurological implant, the Sensor-Reservoir, was developed to provide a relative measurement of ICP, which permits a noninvasive technique to detect and localize occlusions in ventricular drainage systems and, thus, to identify mechanical damage to shunt valves. The “reservoir” of this device can be used to administer medication or a contrast agent, to extract cerebral spinal fluid (CSF), and with the possibility of directly measuring ICP. The Sensor-Reservoir was evaluated to identify possible MRI-related issues at 1.5-T/64-MHz and 3-T/128-MHz. Materials and Methods: Standard testing techniques were utilized to evaluate magnetic field interactions (i.e., translational attraction and torque), MRI-related heating, and artifacts at 3-T for the Sensor-Reservoir. In addition, 12 samples of the Sensor-Reservoir underwent testing to determine if the function of these devices was affected by exposures to various MRI conditions at 1.5-T/64-MHz and 3-T/128-MHz. Results: Magnetic field interactions for the Sensor-Reservoir were not substantial. The heating results indicated a highest temperature rise of 1.8°C, which poses no patient risks. Artifacts were relatively small in relation to the size and shape of the Sensor-Reservoir, but may interfere diagnostically if the area of interest is near the device. All devices were unaffected by exposures to MRI conditions at 1.5-T/64-MHz and 3-T/128-MHz. Conclusion: When specific guidelines are followed, the Sensor-Reservoir is “MR conditional” for patients undergoing MRI examinations at 3-T or less. [Copyright &y& Elsevier] |
| Copyright of Magnetic Resonance Imaging (0730725X) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 89350055 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Evaluation of MRI issues for a new neurological implant, the Sensor Reservoir. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Shellock%2C+Frank+G%2E%22">Shellock, Frank G.</searchLink><relatesTo>1</relatesTo><i> frank.shellock@mrisafety.com</i><br /><searchLink fieldCode="AR" term="%22Knebel%2C+Jörg%22">Knebel, Jörg</searchLink><relatesTo>2</relatesTo><i> joerg.knebel@miethke.com</i><br /><searchLink fieldCode="AR" term="%22Prat%2C+Angelina+D%2E%22">Prat, Angelina D.</searchLink><relatesTo>3</relatesTo><i> angelina_prat@yahoo.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Magnetic+Resonance+Imaging+%280730725X%29%22">Magnetic Resonance Imaging (0730725X)</searchLink>. Sep2013, Vol. 31 Issue 7, p1245-1250. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging%22">Magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Neurosurgery%22">Neurosurgery</searchLink><br /><searchLink fieldCode="DE" term="%22Noninvasive+diagnostic+tests%22">Noninvasive diagnostic tests</searchLink><br /><searchLink fieldCode="DE" term="%22Surgical+drainage%22">Surgical drainage</searchLink><br /><searchLink fieldCode="DE" term="%22Contrast+media%22">Contrast media</searchLink><br /><searchLink fieldCode="DE" term="%22Cerebrospinal+fluid%22">Cerebrospinal fluid</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Background and Purpose: A new neurological implant, the Sensor-Reservoir, was developed to provide a relative measurement of ICP, which permits a noninvasive technique to detect and localize occlusions in ventricular drainage systems and, thus, to identify mechanical damage to shunt valves. The “reservoir” of this device can be used to administer medication or a contrast agent, to extract cerebral spinal fluid (CSF), and with the possibility of directly measuring ICP. The Sensor-Reservoir was evaluated to identify possible MRI-related issues at 1.5-T/64-MHz and 3-T/128-MHz. Materials and Methods: Standard testing techniques were utilized to evaluate magnetic field interactions (i.e., translational attraction and torque), MRI-related heating, and artifacts at 3-T for the Sensor-Reservoir. In addition, 12 samples of the Sensor-Reservoir underwent testing to determine if the function of these devices was affected by exposures to various MRI conditions at 1.5-T/64-MHz and 3-T/128-MHz. Results: Magnetic field interactions for the Sensor-Reservoir were not substantial. The heating results indicated a highest temperature rise of 1.8°C, which poses no patient risks. Artifacts were relatively small in relation to the size and shape of the Sensor-Reservoir, but may interfere diagnostically if the area of interest is near the device. All devices were unaffected by exposures to MRI conditions at 1.5-T/64-MHz and 3-T/128-MHz. Conclusion: When specific guidelines are followed, the Sensor-Reservoir is “MR conditional” for patients undergoing MRI examinations at 3-T or less. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Magnetic Resonance Imaging (0730725X) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.mri.2013.03.012 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 1245 Subjects: – SubjectFull: Magnetic resonance imaging Type: general – SubjectFull: Neurosurgery Type: general – SubjectFull: Noninvasive diagnostic tests Type: general – SubjectFull: Surgical drainage Type: general – SubjectFull: Contrast media Type: general – SubjectFull: Cerebrospinal fluid Type: general Titles: – TitleFull: Evaluation of MRI issues for a new neurological implant, the Sensor Reservoir. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Shellock, Frank G. – PersonEntity: Name: NameFull: Knebel, Jörg – PersonEntity: Name: NameFull: Prat, Angelina D. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 0730725X Numbering: – Type: volume Value: 31 – Type: issue Value: 7 Titles: – TitleFull: Magnetic Resonance Imaging (0730725X) Type: main |
| ResultId | 1 |
