Ryusuke Nakai1, 2, Takashi Azuma3, Tomonobu Kodama1, Hiroshi Tanemura4, Kenichi Hamada5, Hidenori Suzuki4, Waro Taki4, Hiroo Iwata1
1Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan; 2Kokoro Research Center, Kyoto University, Kyoto, Japan; 3National Institute of Information and Communications Technology, Suita, Osaka, Japan; 4Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; 5Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
To remedy susceptibility artifact of conventional aneurysm coils, we developed aneurysm coils made of a gold-platinum alloy. In this study, tensile strength and breaking strength of the new Au-Pt aneurysm coil were approximately equivalent to those of the conventional Pt-W coil. The MRI compatibility of the Au-Pt aneurysm coil was confirmed. These results of MRI artifact evaluation show that use of the Au-Pt coil results in a smaller susceptibility artifact than that obtained with the Pt-W coil, and suggest that the Au-Pt coil may allow a more precise observation of the status of a cerebral aneurysm embolus using MRI.