公开(公告)号：MXPA06002403A

公开(公告)日：2006-08-31

申请号：MXPA06002403

申请日：2004-08-24

Applicant: SIEMENS AG

Inventor： FUIMAONO KRISTINE

IPC: A61B18/14 ,  A61B5/042 ,  A61B5/055 ,  A61B6/03 ,  A61B8/14 ,  G01R33/56 ,  G01S15/89 ,  A61B05/042 ,  A61B05/055 ,  A61B06/03 ,  A61B08/14

Abstract: La presente invencion se refiere a un dispositivo y a un metodo para la asistencia visual durante el uso electrofisiologico de un cateter en el corazon, permitiendo que los datos de mapeo electroanatomico 3D relacionados a una zona del corazon que va a ser tratada, sean visualizados durante el uso del cateter. Antes de que el cateter sea usado los datos de imagen 3D de esta region corporal que contienen el area que va a ser tratada se detecta por medio de un metodo de formacion de imagenes 3d tomograficas. La zona que va a ser tratada o partes importante se la misma son extraidas de los datos de imagen 3D con el fin de obtener datos de imagen 3D seleccionado. Los datos de mapeo 3D electroanatomicos y los datos de imagen 3D seleccionado entonces se clasifican en terminos de posicion y dimension y se visualizan adyacentemente por ejemplo durante la ablacion con cateter. El metodo y el dispositivo de la invencion permiten mejorar la orientacion del operador durante el uso de un cateter en el corazon.

公开(公告)号：MX9604330A

公开(公告)日：1997-06-28

申请号：MX9604330

申请日：1995-03-20

Applicant: VIVUS INC

Inventor： PLACE VIRGIL A

IPC: A61B5/00 ,  A61B5/055 ,  A61B5/103 ,  A61B5/11 ,  A61B5/20 ,  A61B8/06 ,  A61F5/41 ,  A61K9/00 ,  A61K49/00 ,  A61M31/00 ,  A61B05/00 ,  A61B05/055 ,  A61B08/00 ,  A61B19/00

Abstract: Se provee un método para diagnosticar la disfuncion eréctil vasculogénica la impotencia vasculogénica y el síndrome de Peyronie. El método comprende la administracion transuretral de un agente vasodilatador para inducir una ereccion, seguida por la evaluacion hemodinámica utilizando ultrasonografía duplex, RMN, angiografía o similares. Se provee también estuches para llevar a cabo el método de diagnostico, así como métodos de tratamiento basados en la conclusion del diagnostico. Los estuches para diagnosticar la disfuncion eréctil comprende un agente vasodilatador (4) efectivo para inducir la ereccion del pene, un medio de suministro de fármaco (1, 11 o 49) para administrar transuretralmente el agente vasodilatador; un recipiente (15 o 55) para alojar el agente y el medio de suministro de fármaco e instrucciones escritas para usar el agente y el medio de suministro de fármaco.

公开(公告)号：WO1998022022A1

公开(公告)日：1998-05-28

申请号：PCT/US1997011648

申请日：1997-06-27

Applicant: ITI MEDICAL TECHNOLOGIES, INC.

Inventor： ITI MEDICAL TECHNOLOGIES, INC. ,  WERNE, Roger, W.

IPC: A61B05/055

CPC classification number: A61B10/0275 ,  A61B10/02 ,  A61B17/00 ,  A61B17/02 ,  A61B17/122 ,  A61B17/34 ,  A61B90/39 ,  A61B2017/00902 ,  A61B2090/3954 ,  G01R33/285

Abstract: This invention is a medical interventional instrument (12) for use in a magnetic resonance imaging or other imaging system, a method for designing such an instrument (12), and a method including the steps of positioning an instrument (12) having a body (40) with a contrast region (46), a target (10) in the imaging region of an imaging system, and operating the imaging system to produce an image showing both the target (10) and the contrast agent (46). The instrument has a carbon fiber, glass fiber or zirconia body, which preferably carries a contrast agent which is appropriate to the particular imaging modality to be used with the instrument. The concentration and volume of the contrast agent are determined to cause the instrument to be positively shown in an image produced by the imaging system without obscuring, or distorting unacceptably the image of the target with which the contrast agent is to be imaged.

Abstract translation: 本发明是用于磁共振成像或其他成像系统的医疗介入器具（12），用于设计这种仪器的方法（12），以及一种方法，包括以下步骤：定位具有身体的器械（12） 40），成像系统的成像区域中的对象区域（46），目标（10），并且操作成像系统以产生显示靶（10）和造影剂（46）的图像。 仪器具有碳纤维，玻璃纤维或氧化锆体，其优选地携带适用于与仪器一起使用的特定成像模态的造影剂。 确定造影剂的浓度和体积，使得仪器能够被正确地显示在由成像系统产生的图像中，而不会模糊，或者不可接受地使造影剂成像的靶的图像失真。

公开(公告)号：WO1997035517A1

公开(公告)日：1997-10-02

申请号：PCT/JP1997001055

申请日：1997-03-27

Applicant: HITACHI MEDICAL CORPORATION ,  TANIGUCHI, Yo ,  OCHI, Hisaaki ,  OKAJIMA, Kenichi ,  HIRATA, Satoshi

Inventor： HITACHI MEDICAL CORPORATION

IPC: A61B05/055

CPC classification number: G01R33/482 ,  G01R33/54

Abstract: A magnetic resonance imaging apparatus including a pulse sequence control unit, which controls a predetermined pulse sequence of applying a high frequency magnetic field and a gradient magnetic field to an object in a static magnetic field to collect echoes; and an image reconstructing unit that reconstructs an image based on the collected echoes. The pulse sequence control unit includes a spatial resolution control section which sets a spatial resolution A in the readout gradient magnetic field direction of the reconstructed image; and a gradient magnetic field intensity control section which applies a readout magnetic field that causes the spatial resolution B determined by the readout gradient magnetic field intensity and the sampling period to become coarser than the spatial resolution A. The image reconstructing unit reconstructs an image with the minimum unit of the spatial resolution A taken as one pixel width in the readout direction of the reconstructed image.

Abstract translation: 一种磁共振成像装置，包括：脉冲序列控制单元，其控制在静态磁场中对物体施加高频磁场和梯度磁场的预定脉冲序列以收集回波; 以及图像重建单元，其基于所收集的回波重建图像。 脉冲序列控制单元包括空间分辨率控制部分，其在重建图像的读出梯度磁场方向上设置空间分辨率A; 以及梯度磁场强度控制部分，其施加使由读出梯度磁场强度和采样周期确定的空间分辨率B变得比空间分辨率A更粗糙的读出磁场。图像重建单元用 空间分辨率A的最小单位作为重建图像的读出方向上的一个像素宽度。

公开(公告)号：WO1997007736A1

公开(公告)日：1997-03-06

申请号：PCT/US1995010629

申请日：1995-08-25

Applicant: GRUMMAN AEROSPACE CORPORATION

Inventor： GRUMMAN AEROSPACE CORPORATION ,  CASEY, James, A. ,  MCGILL, Robert, E.

IPC: A61B05/055

CPC classification number: A61N1/403 ,  A61N2/02 ,  G01R33/34076 ,  G01R33/36 ,  G01R33/4804 ,  G01R33/4808

Abstract: An MRI machine RF body coil is arranged so that it can also function as a hyperthermia treatment apparatus by arranging the RF body coil as an array (1) of individual antenna elements (2), connected to each other by individually controllable switches (4), and feedthrough elements (5).

Abstract translation: MRI机身RF线圈被布置成使得其也可以通过将RF体线圈布置为单独的天线元件（2）的阵列（1），并且通过单独的可控开关（4）相互连接来起到热疗治疗设备的作用。 和馈通元件（5）。

公开(公告)号：WO1997001304A1

公开(公告)日：1997-01-16

申请号：PCT/US1996010808

申请日：1996-06-25

Applicant: MALLINCKRODT MEDICAL, INC.

Inventor： MALLINCKRODT MEDICAL, INC. ,  BRODACK, James, W. ,  DEUTSCH, Edward, A. ,  DEUTSCH, Karen, E.

IPC: A61B05/055

CPC classification number: A61K51/1241 ,  A61K49/183 ,  A61K2121/00 ,  A61K2123/00

Abstract: The present invention provides methods and compositions for improved medical diagnostic imaging and therapy for the treatment of rheumatoid arthritis. The compositions are derived from apatite particles including, but not limited to, hydroxyapatite, fluoroapatite, iodoapatite, carbonate-apatite, and mixtures and derivatives thereof. The compositions of the present invention contain a paramagnetic species incorporated into the apatite particles to improve magnetic resonance contrast and a radionuclide capable of providing a therapeutic dose of radioactivity. Also disclosed is a combination diagnostic/therapeutic composition and methods of performing medical diagnostic and therapeutic procedures which involve administering to a warm-blooded animal an amount of the above-described apatite particles containing a diagnostically effective amount of the paramagnetic ion and a therapeutically effective amount of the radionuclide and then performing the medical treatment and diagnostic procedures.

Abstract translation: 本发明提供用于治疗类风湿性关节炎的用于改进的医学诊断成像和治疗的方法和组合物。 组合物衍生自磷灰石颗粒，包括但不限于羟基磷灰石，氟磷灰石，碘磷灰石，碳酸盐磷灰石及其混合物和衍生物。 本发明的组合物含有掺入磷灰石颗粒中以提高磁共振对比度的顺磁性物质，以及能够提供治疗剂量的放射性的放射性核素。 还公开了组合诊断/治疗组合物和执行医学诊断和治疗方法的方法，其涉及向温血动物施用一定量的含有诊断有效量的顺磁离子的磷酸钙颗粒和治疗有效量 的放射性核素，然后执行医疗和诊断程序。

公开(公告)号：WO1996004844A1

公开(公告)日：1996-02-22

申请号：PCT/US1995010191

申请日：1995-08-11

Applicant: UNIVERSITY OF UTAH RESEARCH FOUNDATION

Inventor： UNIVERSITY OF UTAH RESEARCH FOUNDATION ,  BRADSHAW, Kenneth, M. ,  GLOVER, Gary, H. ,  HADLEY, J., Rock ,  SCHWEIZER, Martin, P.

IPC: A61B05/055

CPC classification number: G01R33/465 ,  G01R33/443 ,  G01R33/563 ,  G01R33/58

Abstract: A magnetic resonance sensitive (MRS) element, notably boron (B), is compounded in a carrier, such as borocaptate sodium (22). A subject, typically a patient (21) with a brain tumor (24), is positioned in the imaging field of a magnetic resonance imaging machine, along with a reference (38) containing a known concentration of the MRS element. The magnetic resonance imaging machine is operated to produce a signal encoded by a reconstruction method that takes data immediately following the transverse RF pulse. The data is reconstructed to provide, for example, a subject image and a reference image. The subject image is calibrated from the reference image to derive a data matrix relating the concentration of the MRS element in the subject to locations within the subject. The data matrix may then be displayed as an image or downloaded to a computer for controlling radiation dosage during neutron therapy.

Abstract translation: 磁共振敏感（MRS）元素，特别是硼（B））在载体如硼酸盐钠（22）中复合。 通常具有脑肿瘤（24）的患者（21）被放置在磁共振成像机的成像领域中，以及包含已知浓度的MRS元件的参考（38）。 磁共振成像机被操作以产生由采用横向RF脉冲之后的数据的重建方法编码的信号。 重建数据以提供例如对象图像和参考图像。 从参考图像校准被摄体图像以导出将受检者中的MRS元件的浓度与受试者内的位置相关联的数据矩阵。 然后可以将数据矩阵显示为图像或下载到计算机以控制中子治疗期间的辐射剂量。

公开(公告)号：WO1995017851A1

公开(公告)日：1995-07-06

申请号：PCT/US1994014479

申请日：1994-12-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DUMOULIN, Charles, Lucian ,  OPSAHL, Lorinda, Rhea

IPC: A61B05/055

CPC classification number: G01R33/56308 ,  G01R33/56316

Abstract: A shear rate imaging method uses magnetic resonance to detect the distribution of velocities within a subject. Distributions are measured responsive to at least two different field-of-views. Differences of the velocity distribution obtained with one field-of-view and the second field-of-view are computed to give a component of shear rate. The method can be used to obtain velocity measurements in any of three mutually orthogonal directions responsive to field-of-view shifts in as many as three mutually orthogonal directions to give a total of nine shear rate components. Data for each component can be acquired independently or data acquisition can be multiplexed to reduce data acquisition requirements.

Abstract translation: 剪切速率成像方法使用磁共振来检测受试者内的速度分布。 响应于至少两个不同的视野而测量分布。 计算用一个视场和第二视场获得的速度分布的差异，得到剪切速率的分量。 该方法可以用于在三个相互正交的方向中的任一个中获得速度测量，其响应于多达三个相互正交的方向上的视场偏移，以得到总共九个剪切速率分量。 可以独立地获取每个组件的数据，或者可以多路复用数据采集以减少数据采集的要求。

公开(公告)号：WO1993002618A1

公开(公告)日：1993-02-18

申请号：PCT/US1992005778

申请日：1992-07-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  LeROUX, Patric, L. ,  PAULY, John, M.

IPC: A61B05/055

CPC classification number: G01R33/446 ,  G01R33/5615 ,  G01R33/5617

Abstract: An NMR system acquires data for producing an image using a spin-warp burst excitation pulse sequence. RF phase and flip-angle of each RF excitation pulse in the burst is separately controlled to maximize the SNR of the corresponding set of acquired NMR echo signals. The phase and amplitude of each acquired NMR echo signal is adjusted by an amount determined by its corresponding excitation pulse before being used for image reconstruction.

公开(公告)号：WO1992005737A1

公开(公告)日：1992-04-16

申请号：PCT/JP1991001344

申请日：1991-10-03

Applicant: YOKOGAWA MEDICAL SYSTEMS, LTD. ,  INOUE, Yuji

Inventor： YOKOGAWA MEDICAL SYSTEMS, LTD.

IPC: A61B05/055

CPC classification number: G01R33/4215

Abstract: A double coil is used to generate a gradient magnetic field for MRI, having a smaller impedance and a shorter length than those of the prior art. A spiral current path and a plurality of horseshoe current paths surrounding the spiral path are formed on the surface of each of two semicylinders having a common axis. The directions of spirals are opposite to each other on the two surfaces. The horseshoe paths on each surface have open ends at one edge facing the corresponding edge of the other surface. All of these current paths on both surfaces are connected in series to form one current path.