Magnetic Resonance Imaging (MRI) Compatible Ultrasound Therapeutic System
Magnetic Resonance Imaging (MRI) Compatible Ultrasound Therapeutic System
复制标题
磁共振成像 (MRI) 兼容超声治疗系统
DOI：
10.1143/jjap.41.3579
复制
发表时间：
2002
影响因子：
1.5
通讯作者：
S. Umemura
中科院分区：
文献类型：
--
作者：
T. Azuma;K. Sasaki;K. Kawabata;A. Osada;H. Itagaki;Kazumi Takahashi;K. Ishida;Y. Satoh;S. Umemura
由于超声成像系统可以实时和交互地成像，因此可以作为图像引导辅助磁共振成像(MRI)进行微创治疗。评估了与MRI兼容的US探头对MRI监测的影响，结果发现，与MRI兼容的US探头的衬底材料含有100ppm的铁氧体，除了距离US探头位置几mm的半径外，不会干扰MR监测。然后，在超声图像引导下，对来自与MRI兼容的治疗换能器的高强度聚焦超声束照射的猪肝脏进行了MRI温度监测，并证明了这种治疗系统在微创治疗中的潜在用途。
Since an ultrasound (US) imaging system can image in real-time and interactively, it can be used as an image guidance assisting magnetic resonance imaging (MRI) for minimally invasive therapy. The effects of MRI-compatible US probes on MRI monitoring were evaluated, and it was found that the MRI-compatible US probes, whose backing material contained 100 ppm ferrite, did not disturb MR monitoring except at a few mm radius from the US probe's position. MRI temperature monitoring of a swine liver irradiated with a high-intensity focused US beam from an MRI-compatible therapeutic transducer with US image guidance was then performed, and the potential usefulness of such a therapeutic system in minimally invasive therapy was demonstrated.