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1. 发明授权

US11890086B2 Magnetic resonance imaging concepts 有权
公开(公告)号：US11890086B2
公开(公告)日：2024-02-06
申请号：US15421072
申请日：2017-01-31
申请人： Yi Wang , He Zhu
发明人： Yi Wang , He Zhu
IPC分类号： A61B5/055 , G01R33/48 , G01R33/561 , G01R33/56 , G01R33/563 , G01R33/567
CPC分类号： A61B5/055 , G01R33/4824 , G01R33/561 , G01R33/5614 , G01R33/5602 , G01R33/5607 , G01R33/5635 , G01R33/5676
摘要： A method for producing multiple temporal frames of a time-resolved contrast enhanced magnetic resonance angiogram from a subject using an MR contrast agent by repeatedly applying RF pulses and sampling data in the corresponding image k-space along spiral trajectories that start at the k-space center and spiral outward toward the k-space edge.

2. 发明授权

US11678890B2 Tourniquet for magnetic resonance angiography, and method of using same 有权
公开(公告)号：US11678890B2
公开(公告)日：2023-06-20
申请号：US13482348
申请日：2012-05-29
申请人： Martin R. Prince
发明人： Martin R. Prince
IPC分类号： A61B17/135 , A61B17/132 , A61B5/055 , A61B90/00
CPC分类号： A61B17/135 , A61B17/1322 , A61B17/1355 , A61B5/055 , A61B2090/374
摘要： A thigh compression device and technique to control, time, delay and/or prevent excessive early venous enhancement relative to arterial enhancement and thereby improve and/or enhance MRA images, including peripheral MRA images, is disclosed. In one embodiment, the present invention uses a curved strip of material which is longer on the superior edge and shorter along the inferior edge. When wrapped around the conical shape of the thigh of a subject, for example, a human, the thigh compression device more uniformly conforms to and/or fits around the thigh, providing more even/uniform compression as well as reducing, minimizing and/or eliminating significant movement of the thigh compression device towards the knees of the subject. A snug fit on the thighs may also enable the thigh compression device to be inflated with less fluid, which is faster and less cumbersome for the operator.

3. 发明申请

US20100240985A1 METHOD AND APPARATUS FOR MAGNETIC RESONANCE ARTERIOGRAPHY USING CONTRAST AGENTS 审中-公开
标题翻译：使用对比剂进行磁共振成像的方法和装置
公开(公告)号：US20100240985A1
公开(公告)日：2010-09-23
申请号：US12791488
申请日：2010-06-01
申请人： James F.M. Meaney , Martin R. Prince
发明人： James F.M. Meaney , Martin R. Prince
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , G01R33/5601 , G01R33/5635 , G01R33/56383
摘要： The present invention is a technique of, and system for, imaging vascular anatomy over distance considerably greater than the maximum practical field of view of a magnetic resonance imaging system while using substantially one contrast agent injection. The technique and system of the present invention acquires image data of a plurality of image volumes which are representative of different portions of the patient's body. The image data of each image volume includes image data which is representative of the center of k-space. The acquisition of image data which is representative of the center of k-space is correlated with a concentration of contrast agent in the artery(ies) residing in the image volume being substantially greater than the concentration of contrast agent in veins and background tissue adjacent to the artery(ies). This provides preferential enhancement of arteries relative to adjacent veins and background tissue for each acquisition, wherein each acquisition is representative of a different portion of the arterial system (e.g., abdominal aorta, femoral, popliteal, and tibial arteries).
摘要翻译：本发明是一种技术，并且用于在使用基本上一个造影剂注射的情况下远远超过磁共振成像系统的最大实际视野来对血管解剖结构进行成像的技术和系统。本发明的技术和系统获取代表患者身体的不同部分的多个图像体积的图像数据。每个图像体积的图像数据包括表示k空间中心的图像数据。代表k空间中心的图像数据的获取与静止在图像体积中的动脉中的造影剂的浓度基本上大于静脉和邻近的静脉和背景组织中造影剂的浓度相关动脉。这提供了相对于每个采集的相邻静脉和背景组织的动脉的优先增强，其中每个采集代表动脉系统的不同部分（例如，腹主动脉，股骨，po骨和胫骨动脉）。

4. 发明授权

US07999548B1 Dual lower extremity MRI coil array with simultaneously independent MRI signal detection from both legs 有权
标题翻译：双下肢MRI线圈阵列，同时具有双腿的独立MRI信号检测
公开(公告)号：US07999548B1
公开(公告)日：2011-08-16
申请号：US12548172
申请日：2009-08-26
申请人： Ryan J. Brown , Yi Wang
发明人： Ryan J. Brown , Yi Wang
IPC分类号： G01V3/00 , A61B5/055
CPC分类号： G01R33/34046 , A61B5/055 , G01R33/34069 , G01R33/3678
摘要： Magnetic resonance imaging of the lower extremities using a coil array having sections of decoupled coil elements that enclose, bilaterally and separately, both legs at the same longitudinal region along the cranial-caudal direction.
摘要翻译：使用线圈阵列的磁共振成像，该线圈阵列具有在沿着颅尾方向的同一纵向区域处双向和分开地包围两条腿的去耦线圈元件的部分。

5. 发明授权

US07729741B2 Method of multi-region contrast-enhanced magnetic resonance arteriography 失效
标题翻译：多区域对比增强磁共振动脉造影方法
公开(公告)号：US07729741B2
公开(公告)日：2010-06-01
申请号：US11964037
申请日：2007-12-25
申请人： James F. M. Meaney , Martin R. Prince
发明人： James F. M. Meaney , Martin R. Prince
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , G01R33/5601 , G01R33/5635 , G01R33/56383 , G06F19/00
摘要： The present invention is a technique of, and system for, imaging vascular anatomy over distance considerably greater than the maximum practical field of view of a magnetic resonance imaging system while using substantially one contrast agent injection. The technique and system of the present invention acquires image data of a plurality of image volumes which are representative of different portions of the patient's body. The image data of each image volume includes image data which is representative of the center of k-space. The acquisition of image data which is representative of the center of k-space is correlated with a concentration of contrast agent in the artery(ies) residing in the image volume being substantially greater than the concentration of contrast agent in veins and background tissue adjacent to the artery(ies). This provides preferential enhancement of arteries relative to adjacent veins and background tissue for each acquisition, wherein each acquisition is representative of a different portion of the arterial system (e.g., abdominal aorta, femoral, popliteal, and tibial arteries).
摘要翻译：本发明是一种技术，并且用于在使用基本上一个造影剂注射的情况下远远超过磁共振成像系统的最大实际视野来对血管解剖结构进行成像的技术和系统。本发明的技术和系统获取代表患者身体的不同部分的多个图像体积的图像数据。每个图像体积的图像数据包括表示k空间中心的图像数据。代表k空间中心的图像数据的获取与静止在图像体积中的动脉中的造影剂的浓度基本上大于静脉和邻近的静脉和背景组织中造影剂的浓度相关动脉。这提供了相对于每个采集的相邻静脉和背景组织的动脉的优先增强，其中每个采集代表动脉系统的不同部分（例如，腹主动脉，股骨，po骨和胫骨动脉）。

6. 发明授权

US09572514B2 Magnetic resonance imaging concepts 有权
标题翻译：磁共振成像概念
公开(公告)号：US09572514B2
公开(公告)日：2017-02-21
申请号：US13584367
申请日：2012-08-13
申请人： Yi Wang , He Zhu
发明人： Yi Wang , He Zhu
IPC分类号： A61B5/055 , G01R33/561 , G01R33/48 , G01R33/56 , G01R33/563 , G01R33/567
CPC分类号： A61B5/055 , G01R33/4824 , G01R33/5602 , G01R33/5607 , G01R33/561 , G01R33/5614 , G01R33/5635 , G01R33/5676
摘要： A method for producing multiple temporal frames of a time-resolved contrast enhanced magnetic resonance angiogram from a subject using an MR contrast agent by repeatedly applying RF pulses and sampling data in the corresponding image k-space along spiral trajectories that start at the k-space center and spiral outward toward the k-space edge.
摘要翻译：一种用于通过重复地施加RF脉冲并且沿着从k空间开始的螺旋轨迹在相应图像k空间中采样数据来产生来自使用MR造影剂的对象的时间分辨对比增强磁共振血管造影图的多个时间帧的方法中心并朝向k空间边缘向外螺旋。

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