Journal article
In vitro evaluation of platinum Guglielmi detachable coils at 3 T with a porcine model : Safety issues and artifacts
Radiology, Vol.219(3), pp.732-737
2001
DOI: 10.1148/radiology.219.3.r01jn33732
PMID: 11376262
Abstract
Purpose: To evaluate safety-related issues and imaging artifacts of Guglielmi detachable coils in vitro with 3-T magnetic resonance (MR) imaging.
Materials and methods: Two aneurysm models were constructed: one from porcine carotid artery and the other from a pharmaceutical capsule. Both were filled with Guglielmi detachable coils. The models were tested with a 3-T MR imager for heating, deflection, and imaging artifact. Testing for heating and deflection was performed (a) at static points both inside and outside the bore, (b) during movement into the imager, and (c) during clinical imaging sequences.
Results: No change in temperature was measured during movement into the imager bore or at different points within the bore. No differences in heating from radio-frequency energy were found between aneurysm models and controls. Similarly, no evidence of deflection of the coil mass (capsule model) was found. Minor susceptibility artifacts were found in the readout direction during gradient-echo sequences. Magnetic field mapping showed no induced field inhomogeneity.
Conclusion: MR imaging at field strengths of 3 T in patients with aneurysms treated with Guglielmi detachable coils is safe. Imaging artifacts are likely to be minimal.
Details
- Title: Subtitle
- In vitro evaluation of platinum Guglielmi detachable coils at 3 T with a porcine model : Safety issues and artifacts
- Creators
- Charles T HENNEMEYER - Neuroimaging Laboratory, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, United StatesKarsten WICKLOW - Research and Development Division, Siemens Medical Systems, Iselin, NJ, United StatesDavid A FEINBERG - Neuroradiology Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, United StatesColin P Derdeyn - Neuroradiology Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, United States
- Resource Type
- Journal article
- Publication Details
- Radiology, Vol.219(3), pp.732-737
- Publisher
- Radiological Society of North America; Oak Brook, IL
- DOI
- 10.1148/radiology.219.3.r01jn33732
- PMID
- 11376262
- ISSN
- 0033-8419
- eISSN
- 1527-1315
- Language
- English
- Date published
- 2001
- Academic Unit
- Neurology; Radiology; Iowa Neuroscience Institute; Neurosurgery
- Record Identifier
- 9984020899402771
Metrics
6 Record Views