## Abstract Magnetic resonance (MR) procedures are contraindicated for patients with certain ferromagnetic biomedical implants, primarily owing to the risk of movement or dislodgment of the implants by the static magnetic field. An additional concern is the amount of artifact that the implant produ
Biopsy needles and devices: Assessment of ferromagnetism and artifacts during exposure to a 1.5-T MR system
โ Scribed by Marleigh A. Moscatel; Frank G. Shellock; Stacy M. Morisoli
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 398 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1053-1807
No coin nor oath required. For personal study only.
โฆ Synopsis
Forty
-eight biopsy devices (needles, stylets, guide wires. biopsy guns. etc) were evaluated for ferromagnetism (n = 48) and artifacts (n = 43) in a 1.5-T magnetic resonance (MR) system, with previously deflve of the 48 devices were found to be ferromagnetic. Artifacts varied, depending on the type and size of the component material(s) of the device. Most of the commercially available biopsy devices are not useful opsy procedures because of the presence of ferromagnetism and associated artifacts. scribed techniques. Fortyfor M R imaghg-guided bil n d u t-: Arufact -Blopsles. technology * Magnetlr resonance (MR) guldance * Safety
๐ SIMILAR VOLUMES
## Abstract Three breast tissue expanders were evaluated for compatibility with MR imaging (1.5 Tesla). The metallic components of the breast tissue expanders were shown to be nonferromagnetic, heating .2ยฐC and the artifacts varied. These results indicate that MR procedures may be performed safely
## Abstract Ex vivo testing techniques were used to determine the ferromagnetic qualities of, presence of heating in, and artifacts produced by 13 different heart valve prostheses exposed to a 1.5โT (64โMHz) magnetic resonance (MR) system. None of the heart valve prostheses showed a measurable defl