الفهرس 
The physics and nature of X-radiationOnly 14 pages are availabe for public view
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Abstract
Periodical dark-bright patterns were visualized clearly on the MR images as shown in Figure 45(b) and Figure 47. A dark-bright pattern with an electrical marking technique with a very small aperture RF receiver coil was very clearly projected on the MR image. The catheter tip was precisely extracted and reconstructed into three-dimensional coordinate. Therefore the prototype catheter with a RF receiver coil was seemed to be useful for catheter tracking in MR intervention. The polymer-absorbed Gadolinium complex was also projected very clearly on the MR image. The “bamboo catheter” technique was expected for clinical feasibility if the marking technique would be implemented to catheters in clinical use.