专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

WO2017117094A1 SYSTEM AND METHOD FOR ASSESSING TISSUE PROPERTIES USING CHEMICAL-SHIFT-ENCODED MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：使用化学位移编码的磁共振成像来评估组织特性的系统和方法
公开(公告)号：WO2017117094A1
公开(公告)日：2017-07-06
申请号：PCT/US2016/068649
申请日：2016-12-27
申请人： WISCONSIN ALUMNI RESEARCH FOUNDATION
发明人： REEDER, Scott, B. , STRIGEL, Roberta, M.
IPC分类号： G01R33/48 , G01R33/485 , A61B5/055 , G01R33/56 , A61B5/00
CPC分类号： A61B5/055 , A61B5/4312 , A61B5/4872 , A61B5/4875 , A61B5/7282 , A61B2576/02 , G01R33/4828 , G01R33/485 , G01R33/5608 , G06T7/0012 , G06T7/0081 , G06T2207/10088 , G06T2207/30068 , G06T2207/30096
摘要： A system and method for assessing tissue properties of a subject within a region of interest (ROI) using a magnetic resonance imaging (MRI) system includes acquiring chemical-shift-encoded imaging data of the ROI. The method also includes determining, from imaging data a proton density water fraction (PDWF) map and quantifying, using the PDWF map, a property of tissue within the ROI. The method further includes generating, using the PDWF map, a report indicating the quantified property of the tissue. The tissue may include fibroglandular tissue (FGT).
摘要翻译：用于使用磁共振成像（MRI）系统评估感兴趣区域（ROI）内的对象的组织性质的系统和方法包括获取ROI的化学位移编码的成像数据。该方法还包括根据成像数据确定质子密度水分（PDWF）图并使用PDWF图确定ROI内组织的性质。该方法还包括使用PDWF图产生指示组织量化特性的报告。组织可能包括纤维腺体组织（FGT）。

52. 发明申请

WO2017114951A1 MAGNETIC-RESONANCE IMAGING DATA SYNCHRONIZER 审中-公开
标题翻译：磁共振成像数据同步
公开(公告)号：WO2017114951A1
公开(公告)日：2017-07-06
申请号：PCT/EP2016/082924
申请日：2016-12-30
申请人： KONINKLIJKE PHILIPS N.V.
发明人： CRONIN, John , WILSON, Dylan, Jonathan
IPC分类号： G01R33/56 , G06F19/00 , G01R33/48
CPC分类号： G01R33/5608 , A61B5/0013 , A61B5/0022 , A61B5/055 , A61B5/14551 , A61B5/7425 , A61B5/743 , A61B5/7435 , A61B2560/0295 , G01R33/4808 , G06F19/00 , G06F19/32
摘要： The present disclosure generally relates to a system and method for collecting and merging physiological data from a plurality of medical devices and sensors where merged physiological data from the medical devices is sent to a magnetic-resonance imaging (MRI) display device. MRI scan data and data from the plurality of medical devices may be collected in real time and may also be sent over a computer network for storage. Alternatively data may be sent over one or more computer networks from each different medical device and be merged at a remote computing device.
摘要翻译：本公开一般涉及用于收集和合并来自多个医疗设备和传感器的生理数据的系统和方法，其中来自医疗设备的合并生理数据被发送到磁共振成像（MRI ）显示设备。可以实时收集来自多个医疗设备的MRI扫描数据和数据，并且也可以通过计算机网络发送用于存储。或者，可以通过来自每个不同医疗设备的一个或多个计算机网络发送数据，并在远程计算设备处合并。

53. 发明申请

WO2017093434A1 ROTATABLE MAGNET FOR PROTON THERAPY 审中-公开
标题翻译：质子治疗用可控磁体
公开(公告)号：WO2017093434A1
公开(公告)日：2017-06-08
申请号：PCT/EP2016/079496
申请日：2016-12-01
申请人： KONINKLIJKE PHILIPS N.V.
发明人： FORTHMANN, Peter , JONAS, Philip, Alexander , OVERWEG, Johannes, Adrianus
IPC分类号： G01R33/48 , G01R33/38 , A61N5/10 , G01R33/3815
CPC分类号： G01R33/3804 , A61N5/1049 , A61N2005/1055 , A61N2005/1087 , G01R33/3815 , G01R33/4808
摘要： The following relates generally to use of magnetic resonance (MR) imaging as guidance in radiation therapy, and more specifically to use of MR imaging as guidance in proton therapy. In some embodiments, a cryogenic dewar is provided with multiple channels allowing a proton beam from a proton beam source to pass through. The proton beam may first be aligned with a first channel, and the dewar may then be rotated along with the proton source. The dewar may then be rotated to align a second channel with the proton beam.
摘要翻译：以下一般涉及使用磁共振（MR）成像作为放射治疗中的指导，并且更具体地涉及使用MR成像作为质子治疗中的指导。在一些实施例中，低温杜瓦瓶具有允许来自质子束源的质子束通过的多个通道。质子束可以首先与第一通道对齐，然后杜瓦瓶可以与质子源一起旋转。然后可以旋转杜瓦瓶以使第二通道与质子束对齐。

54. 发明申请

WO2017083340A1 PHASE CYCLED MAGNETIC RESONANCE SPECTROSCOPIC IMAGING 审中-公开
标题翻译：相循环磁共振波谱成像
公开(公告)号：WO2017083340A1
公开(公告)日：2017-05-18
申请号：PCT/US2016/061066
申请日：2016-11-09
申请人： ST. JUDE CHILDREN'S RESEARCH HOSPITAL, INC.
发明人： GUO, Junyu , REDDICK, Wilburn E.
IPC分类号： G01R33/48 , A61B5/055 , G01R33/44 , G01R33/46 , G01R33/54 , G01V3/00
CPC分类号： G01R33/485 , G01R33/4616 , G01R33/4838
摘要： Systems, methods, and other embodiments associated with phase cycled magnetic resonance spectroscopic imaging (PCSI). According to one embodiment, a method includes applying an excitation radio frequency (RF) pulse having a low flip angle to a sample. The method further includes adjusting the phase of the RF to sweep through a frequency range based, at least in part, on PCSI. Sampling is then performed in the frequency range. The method also includes receiving a set of data based, at least in part, on the sampling in the frequency range.
摘要翻译：与相循环磁共振波谱成像（PCSI）相关联的系统，方法和其他实施例。根据一个实施例，一种方法包括将具有低翻转角的激励射频（RF）脉冲施加到样本。该方法还包括至少部分地基于PCSI来调整RF的相位以扫过频率范围。然后在频率范围内执行采样。该方法还包括至少部分地基于频率范围内的采样来接收一组数据。

55. 发明申请

WO2017062882A1 SELECTIVE SAMPLING FOR ASSESSING STRUCTURAL SPATIAL FREQUENCIES WITH SPECIFIC CONTRAST MECHANISMS 审中-公开
标题翻译：用特定对比机制评估结构性空间频率的选择性采样
公开(公告)号：WO2017062882A1
公开(公告)日：2017-04-13
申请号：PCT/US2016/056147
申请日：2016-10-07
申请人： BIOPROTONICS LLC
发明人： CHASE, David, R. , JAMES, Timothy, W. , JAMES, Kristin, E.
IPC分类号： A61B5/055 , G01R33/48 , G01R33/385 , G01R33/54
CPC分类号： A61B5/055 , A61B5/0033 , A61B5/4842 , G01R33/4833 , G01R33/561 , G01R33/56509
摘要： The disclosed embodiments provide a method for acquiring MR data at resolutions down to tens of microns for application in in-vivo diagnosis and monitoring of pathology for which changes in fine tissue textures can be used as markers of disease onset and progression. Bone diseases, tumors, neurologic diseases, and diseases involving fibrotic growth and/or destruction are all target pathologies. Further the technique can be used in any biologic or physical system for which very high-resolution characterization of fine scale morphology is needed. The method provides rapid acquisition of selected values in k-space, with multiple successive acquisitions of individual k- values taken on a time scale on the order of microseconds, within a defined tissue volume, and subsequent combination of the multiple measurements in such a way as to maximize SNR. The reduced acquisition volume, and acquisition of only select values in k-space along selected directions, enables much higher in- vivo resolution than is obtainable with current MRI techniques.
摘要翻译：所公开的实施例提供了一种用于以分辨率低至几十微米获取MR数据的方法，用于体内诊断和监测病理学，其中精细组织纹理的变化可用作疾病发作和进展的标志。骨病，肿瘤，神经系统疾病和涉及纤维化生长和/或破坏的疾病都是目标病态。此外，该技术可以用于需要非常高分辨率表征精细尺度形态的任何生物或物理系统中。该方法提供在k空间中快速获取所选择的值，并且以定义的组织体积内的微秒数量级的时间尺度上采集的各个k值的多次连续采集，以及以这种方式的多个测量的后续组合以使SNR最大化。缩小的采集量以及沿所选方向仅在k空间中的选择值的获取使得比目前的MRI技术可获得更高的体内分辨率。

56. 发明申请

WO2017060865A2 SYSTEMS AND METHODS FOR REGISTERING IMAGES OBTAINED USING VARIOUS IMAGING MODALITIES AND VERIFYING IMAGE REGISTRATION 审中-公开
标题翻译：用于注册使用各种成像模式和验证图像注册的图像的系统和方法
公开(公告)号：WO2017060865A2
公开(公告)日：2017-04-13
申请号：PCT/IB2016/056016
申请日：2016-10-07
申请人： INSIGHTEC, LTD.
发明人： BROKMAN, Omer , PRUS, Oleg , ZADICARIO, Eyal
IPC分类号： A61B6/12 , A61B6/00 , A61B8/00 , A61B8/08 , A61B5/055 , A61N7/00 , G01R33/48
CPC分类号： G06T7/30 , A61B5/0035 , A61B5/055 , A61B6/032 , A61B6/12 , A61B6/488 , A61B6/5247 , A61B8/4209 , A61B8/4416 , A61B8/4483 , A61B8/5261 , A61B8/5276 , A61B2017/0011 , A61B2090/364 , A61B2090/374 , A61B2090/3762 , A61N7/02 , G01R33/4814 , G01R33/5608 , G06T3/0068 , G06T7/0014 , G06T7/20 , G06T7/32 , G06T7/70 , G06T11/006 , G06T15/503 , G06T2207/10081 , G06T2207/10088 , G06T2207/10132 , G06T2207/20221
摘要： Embodiments of the present invention provide systems and methods to verify and/or obtain a registration of images obtained two image systems (such as a CT system and an MR] system) via the use of a third imaging modality (such as an ultrasound system).
摘要翻译：本发明的实施例提供了通过使用第三成像模式（例如超声系统）来验证和/或获得获得的两个图像系统（例如CT系统和MR系统）的图像的配准的系统和方法，。

57. 发明申请

WO2017001208A1 METHOD FOR ESTIMATING A DISPLACEMENT OF AN STRUCTURE OF INTEREST AND MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
标题翻译：估计兴趣和磁共振成像系统结构偏差的方法
公开(公告)号：WO2017001208A1
公开(公告)日：2017-01-05
申请号：PCT/EP2016/063970
申请日：2016-06-17
申请人： KONINKLIJKE PHILIPS N.V.
发明人： VAHALA, Erkki Tapani , TANTTU, Jukka Ilmari
IPC分类号： G01R33/56 , G01R33/565 , A61N5/00 , G01R33/48
CPC分类号： G01R33/56509 , A61N5/1049 , A61N5/1068 , A61N2005/1055 , G01R33/4828 , G01R33/5608
摘要： It is an object of the invention to provide for a method and system for estimating a displacement of an structure of interest. This object is achieved by a method according to a method for estimating a displacement of a structure of interest comprising the following steps performing a first and a second magnetic resonance imaging sequence on an structure of interest and acquiring a corresponding first and second signal, wherein the second magnetic resonance imaging sequence is a gradient echo sequence and reconstructing a first image from the first signal and; reconstructing a second image from the second signal and performing an image registration between the first and second imageby using both magnitude and phase data of the second image estimating a displacement of the structure of interest between the acquisition of the first and second signal based on the registration between the first and second image.
摘要翻译：本发明的目的是提供一种用于估计感兴趣结构的位移的方法和系统。该目的通过根据用于估计感兴趣结构的位移的方法的方法来实现，包括以下步骤：在感兴趣的结构上执行第一和第二磁共振成像序列，并获取对应的第一和第二信号，其中，第二磁共振成像序列是梯度回波序列，并且从第一信号重建第一图像; 使用所述第二图像的幅度和相位数据，使用所述第一图像和所述第二图像之间的图像配准，基于所述第一和第二图像估计所述第一和第二信号的获取之间的所述感兴趣结构的位移，在第一和第二图像之间。

58. 发明申请

WO2016202707A1 MR IMAGING USING A STACK-OF-STARS ACQUISITION 审中-公开
标题翻译：使用星空数据采集成像
公开(公告)号：WO2016202707A1
公开(公告)日：2016-12-22
申请号：PCT/EP2016/063413
申请日：2016-06-12
申请人： KONINKLIJKE PHILIPS N.V.
发明人： BECK, Gabriele Marianne
IPC分类号： G01R33/48 , G01R33/561 , G01R33/563
CPC分类号： G01R33/4826 , G01R33/5601 , G01R33/5611 , G01R33/56308
摘要： The invention relates to a method of MR imaging of at least an object (10) placed in an examination volume of a MR device (1). It is an object of the invention to enable fast MR imaging using the stack-of-stars acquisition scheme with a reduced level of streaking artifacts. The method of the invention comprises: • - subjecting the object (10) to an imaging sequence of at least one RF pulse and switched magnetic field gradients, • - acquiring MR signals according to a stack-of-stars scheme, wherein the MR signals are acquired as radial k-space profiles (S 1-S 12) from a number of parallel slices (21-27) arranged at different positions along a slice direction, wherein the radial density of the k-space profiles (SI-SI2) varies as a function of the slice position, wherein the radial density is higher at more central k- space positions and lower at more peripheral k-space positions and wherein k-space profiles are acquired at a higher temporal density from slices at more central positions than from slices at more peripheral k-space positions, and • - reconstructing a MR image from the MR signals.
摘要翻译：本发明涉及放置在MR装置（1）的检查体积中的至少一个物体（10）的MR成像方法。本发明的一个目的是使用具有降低的条纹伪影水平的采用星群的采集方案实现快速MR成像。本发明的方法包括： - 对物体（10）进行至少一个RF脉冲和切换的磁场梯度的成像序列， - 根据星星方案获取MR信号，其中MR信号从沿着切片方向布置在不同位置的多个平行切片（21-27）被采集为径向k空间轮廓（S1-S12），其中k-空间轮廓（SI-SI2）的径向密度作为切片位置的函数而变化，其中径向密度在更多中心k空间位置处较高，并且在更多外围k空间位置处较低，并且其中在更多中心位置处的切片获得更高时间密度的k空间分布而不是在更多外围k空间位置处的切片，以及•从MR信号重建MR图像。

59. 发明申请

WO2016198362A1 MRI WITH VARIABLE DENSITY SAMPLING 审中-公开
标题翻译：具有可变密度采样的MRI
公开(公告)号：WO2016198362A1
公开(公告)日：2016-12-15
申请号：PCT/EP2016/062819
申请日：2016-06-07
申请人： KONINKLIJKE PHILIPS N.V.
发明人： ZHAO, Chenguang , HUANG, Feng , YANG, Ming
IPC分类号： G01R33/48 , G01R33/561
CPC分类号： G01R33/4826 , G01R33/4818 , G01R33/482 , G01R33/4822 , G01R33/4824 , G01R33/561
摘要： The invention provides a device for producing a magnetic resonance image. The device comprises a collecting unit adapted for collecting k space samples that are located on a non-Cartesian grid in a non-Cartesian coordinate space or non-uniformly located on a Cartesian grid in a Cartesian coordinate space, the non-Cartesian/Cartesian coordinate space adapted to be decomposed into a plurality of subspaces, each of which extends along one or more coordinate axes of the non-Cartesian/Cartesian coordinate space; a weight calculation unit (203) adapted for calculating a decomposed sample density weight function of the k space samples in each individual subspace and determining a density weight function in the non-Cartesian/Cartesian coordinate space via a multiplication of the decomposed sample density weight functions of the k space samples in the plurality of subspaces; a gridding unit adapted for interpolating the k space samples in the non-Cartesian/Cartesian coordinate space onto a uniform Cartesian grid in a k space based on the density weight function of the k space samples in the non-Cartesian/Cartesian coordinate space; and a reconstructing unit adapted for reconstructing the magnetic resonance image based on the interpolated k space samples. By means of the invention, fast, preferably on-demand, calculation of the sampling density weights may be achieved.
摘要翻译：本发明提供一种用于产生磁共振图像的装置。该装置包括收集单元，其适于收集位于非笛卡尔坐标空间中的非笛卡尔网格上的非空间样本，或非均匀地位于笛卡尔坐标空间中的笛卡尔网格上的非笛卡尔/笛卡尔坐标适于分解成多个子空间的空间，每个子空间沿着非笛卡尔/笛卡尔坐标空间的一个或多个坐标轴延伸; 权重计算单元（203），用于计算每个单独子空间中的k空间样本的分解样本密度权重函数，并且通过分解的样本密度权重函数的乘积来确定非笛卡尔/笛卡尔坐标空间中的密度权重函数的多个子空间中的k个空间样本; 网格单元，用于基于非笛卡尔/笛卡尔坐标空间中的k空间样本的密度权重函数，将非笛卡尔/笛卡尔坐标空间中的k个空间样本内插到k空间中的均匀笛卡尔网格上; 以及重建单元，其适于基于插值的k空间样本重建所述磁共振图像。通过本发明，可以实现快速，优选按需的采样密度权重的计算。

60. 发明申请

WO2016194899A1 磁気共鳴撮像装置および高周波磁場シミング方法审中-公开
标题翻译：磁共振成像装置及高频磁场成像方法
公开(公告)号：WO2016194899A1
公开(公告)日：2016-12-08
申请号：PCT/JP2016/066019
申请日：2016-05-31
申请人：株式会社日立製作所
发明人：金子　幸生 , 越智　久晃 , 黒川　眞次 , 伊藤　公輔 , 高橋　哲彦 , 尾藤　良孝
IPC分类号： A61B5/055 , G01R33/48
CPC分类号： A61B5/055 , G01R33/48
摘要：複数チャンネルを有する送信コイルを用いるＭＲＩ装置において、計測ノイズが含まれる場合であっても、目的によらず、最大の効果が得られるＲＦシミング技術を提供する。　本発明は、ＲＦシミングにおいて、計測ノイズが含まれる場合であっても、最適なＲＦパラメータを算出可能な最適化指標を用い、ＲＦシミングを行う。最適化指標は、Ｂ 1 値に、撮像領域の位置および初期Ｂ 1 値の大きさの少なくとも一方に応じた重み付けを行うことにより得る。重み付けは、例えば、Ｂ１値に重み付け関数を乗算することによりなされる。
摘要翻译：提供了即使在使用具有多个通道的发送线圈的MRI装置中包括测量噪声的情况下，也可以不管目的而获得最大效果的RF匀场技术。在本发明中，使用优化指标来执行RF匀场，由此即使在RF匀场中包括测量噪声的情况下也可以计算出最佳RF参数。通过根据成像区域的位置和初始B1值的大小中的至少一个对B1值进行加权来获得优化指标。例如，通过将B1值乘以加权函数来进行加权。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式