Hong Yang Yuan1, Xing Lv1, Rui
Zhang1, Xue Dong Yang2, Xiao Ying Wang2,3,
Xiao Hai Ma4, Zhao Qi Zhang4, Jue Zhang,3,
Jing Fang1,3
1College of Engineering,
Peking University, Beijing, China, People's Republic of; 2Dept. of
Radiology, Peking University First Hospital, Beijing, China, People's
Republic of; 3Academy for Advanced Interdisciplinary Studies,
Peking University, Beijing, China, People's Republic of; 4Dept. of
Radiology, Beijing Anzhen Hospital, Beijing, China, People's Republic of
Although intravascular MR probe has been proposed for many years, the rigid and bulky guide-wire presents major challenges when the intravascular detectors are applied into small vessels. In this study, to overcome these inherent limitations and improve the longitudinal coverage, a novel long intravascular loopless monopole antenna (ILMA) design with a thin non-shielded flexible guide-wire is presented. In vitro and in vivo test were carried out to assess the feasibility of the ILMA. Results show that the proposed design has the advantage of providing high SNR, high spatial resolution, and greater longitudinal coverage in this preliminary study.
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