公开(公告)号：US20070238978A1

公开(公告)日：2007-10-11

申请号：US11761561

申请日：2007-06-12

Applicant: Ananda Kumar ,  Ergin Atalar ,  Ogan Ocali

Inventor： Ananda Kumar ,  Ergin Atalar ,  Ogan Ocali

IPC: A61B5/05

CPC classification number: G01R33/287 ,  A61B5/055 ,  A61B10/0275 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/374 ,  A61B2090/3958 ,  G01R33/34084 ,  G01R33/341 ,  G01R33/3628 ,  G01R33/3657

Abstract: Herein is disclosed a magnetic resonance imaging antenna, including an inner conductor, an outer shield slideably displaceable with respect to the inner conductor, and an insulator electrically insulating the inner conductor from the outer shield. Herein is disclosed a biopsy needle antenna, including a magnetic resonance imaging antenna, having an outer shield, and an inner conductor electrically insulated from the outer shield by a dielectric; and a biopsy needle electrically connected to the inner conductor and electrically insulated from the outer shield by the dielectric. Herein is disclosed a method of obtaining a sample with magnetic resonance imaging guidance, including providing a sampling needle magnetic resonance imaging antenna, advancing the antenna to a structure from which the sample is to be taken, detecting magnetic resonance data by the antenna, and coupling the sample to the antenna.

Abstract translation: 这里公开了一种磁共振成像天线，其包括内部导体，可相对于内部导体可滑动地移位的外部屏蔽，以及将内部导体与外部屏蔽电绝缘的绝缘体。 本文公开了一种活检针状天线，包括具有外屏蔽的磁共振成像天线和通过电介质与外屏蔽电绝缘的内导体; 以及活组织检查针，其电连接到所述内部导体并且通过所述电介质与所述外部屏蔽层电绝缘。 本文公开了一种获得具有磁共振成像引导的样本的方法，包括提供采样针磁共振成像天线，将天线推进到要从其获取样本的结构，通过天线检测磁共振数据，以及耦合 样品到天线。

公开(公告)号：US07236816B2

公开(公告)日：2007-06-26

申请号：US10131601

申请日：2002-04-24

Applicant: Ananda Kumar ,  Ergin Atalar ,  Ogan Ocali

Inventor： Ananda Kumar ,  Ergin Atalar ,  Ogan Ocali

IPC: A61B5/055

CPC classification number: G01R33/287 ,  A61B5/055 ,  A61B10/0275 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/374 ,  A61B2090/3958 ,  G01R33/34084 ,  G01R33/341 ,  G01R33/3628 ,  G01R33/3657

Abstract: Herein is disclosed a magnetic resonance imaging antenna, including an inner conductor, an outer shield slideably displaceable with respect to the inner conductor, and an insulator electrically insulating the inner conductor from the outer shield. Herein is disclosed a biopsy needle antenna, including a magnetic resonance imaging antenna, having an outer shield, and an inner conductor electrically insulated from the outer shield by a dielectric; and a biopsy needle electrically connected to the inner conductor and electrically insulated from the outer shield by the dielectric. Herein is disclosed a method of obtaining a sample with magnetic resonance imaging guidance, including providing a sampling needle magnetic resonance imaging antenna, advancing the antenna to a structure from which the sample is to be taken, detecting magnetic resonance data by the antenna, and coupling the sample to the antenna.

Abstract translation: 这里公开了一种磁共振成像天线，其包括内部导体，可相对于内部导体可滑动地移位的外部屏蔽，以及将内部导体与外部屏蔽电绝缘的绝缘体。 本文公开了一种活检针状天线，包括具有外屏蔽的磁共振成像天线和通过电介质与外屏蔽电绝缘的内导体; 以及活组织检查针，其电连接到所述内部导体并且通过所述电介质与所述外部屏蔽层电绝缘。 本文公开了一种获得具有磁共振成像引导的样本的方法，包括提供采样针磁共振成像天线，将天线推进到要从其获取样本的结构，通过天线检测磁共振数据，以及耦合 样品到天线。

公开(公告)号：US20070088416A1

公开(公告)日：2007-04-19

申请号：US11560055

申请日：2006-11-15

Applicant: Ergin Atalar ,  Robert Susil

Inventor： Ergin Atalar ,  Robert Susil

IPC: A61N1/00

CPC classification number: A61N1/08 ,  A61B5/042 ,  A61B18/14 ,  A61N1/05 ,  A61N1/056 ,  A61N1/086 ,  A61N1/3718

Abstract: Herein is disclosed a probe, including a first electrode disposed at least partially on the probe surface, a second electrode disposed at least partially on the probe surface, a first conductor electrically coupled to the first electrode, a second conductor electrically coupled to the second electrode, and a reactive element electrically coupling the first conductor and the second conductor.

Abstract translation: 本文公开了一种探针，包括至少部分地设置在探针表面上的第一电极，至少部分地设置在探针表面上的第二电极，电耦合到第一电极的第一导体，电耦合到第二电极的第二导体 以及电耦合第一导体和第二导体的电抗元件。

公开(公告)号：US20060241368A1

公开(公告)日：2006-10-26

申请号：US10512150

申请日：2003-04-22

Applicant: Gabor Fichtinger ,  Ergin Atalar ,  Louis Whitcomb ,  Robert Susil ,  Attila Tanacs ,  Axel Krieger

Inventor： Gabor Fichtinger ,  Ergin Atalar ,  Louis Whitcomb ,  Robert Susil ,  Attila Tanacs ,  Axel Krieger

IPC: A61B5/05

CPC classification number: G01R33/287 ,  A61B5/055 ,  A61B5/06 ,  A61B5/065 ,  A61B6/12 ,  A61B8/0833 ,  A61B8/0841 ,  A61B8/12 ,  A61B8/445 ,  A61B10/0241 ,  A61B17/3403 ,  A61B17/3478 ,  A61B34/20 ,  A61B2017/00274 ,  A61B2018/00547 ,  A61B2034/107 ,  A61B2034/2051 ,  A61B2090/365 ,  A61B2090/378 ,  A61B2090/3784 ,  A61B2090/3954 ,  A61B2090/3958

Abstract: The end-effector (150) includes a sheath (152) and a medical device or needle carrier (154) that is disposed within the interior compartment (166) of the sheath. Aperture (162) is located in a portion of the sheath proximal a distal end of the sheath that is inserted into a natural or artificial cavity. This device is guided by a real-time imager.

Abstract translation: 末端执行器（150）包括护套（152）和设置在护套的内部隔室（166）内的医疗装置或针架（154）。 孔（162）位于护套的远端的鞘的一部分中，其插入天然或人造腔中。 该设备由实时成像仪指导。

公开(公告)号：US20060122493A1

公开(公告)日：2006-06-08

申请号：US11136329

申请日：2005-05-24

Applicant: Ergin Atalar ,  Harald Quick ,  Parag Karmarkar

Inventor： Ergin Atalar ,  Harald Quick ,  Parag Karmarkar

IPC: A61B5/05

CPC classification number: G01R33/34084 ,  A61B1/273 ,  A61B1/303 ,  A61B1/307 ,  A61B1/31 ,  A61B5/055 ,  A61B5/415 ,  A61B5/418 ,  A61B5/4381 ,  G01R33/285 ,  G01R33/34007 ,  G01R33/341 ,  H01Q1/36 ,  H01Q1/362 ,  H01Q1/40 ,  H01Q1/44 ,  H01Q11/08

Abstract: Systems and methods for the evaluation of the urethra and periurethral tissues may involve an MRI coil adapted for insertion into the male, female or pediatric urethra. The MRI coil may be in electrical communication with an interface circuit made up of a tuning-matching circuit, a decoupling circuit and a balun circuit. The interface circuit may also be in electrical communication with a MRI machine. In certain practices, the present invention provides methods for the diagnosis and treatment of conditions involving the urethra and periurethral tissues, including disorders of the female pelvic floor, conditions of the prostate and anomalies of the pediatric pelvis.

Abstract translation: 用于评估尿道和尿道周围组织的系统和方法可以包括适于插入到男性，女性或儿科尿道中的MRI线圈。 MRI线圈可以与由调谐匹配电路，去耦电路和平衡 - 不平衡转换电路组成的接口电路电连通。 接口电路也可以与MRI机器电连通。 在某些实践中，本发明提供了用于诊断和治疗涉及尿道和尿道周围组织的病症的方法，包括女性骨盆底部疾病，前列腺疾病和儿科骨盆异常。

公开(公告)号：US20060100506A1

公开(公告)日：2006-05-11

申请号：US11314241

申请日：2005-12-22

Applicant: Henry Halperin ,  Ronald Berger ,  Ergin Atalar ,  Elliot McVeigh ,  Albert Lardo ,  Hugh Calkins ,  Joao Lima

Inventor： Henry Halperin ,  Ronald Berger ,  Ergin Atalar ,  Elliot McVeigh ,  Albert Lardo ,  Hugh Calkins ,  Joao Lima

IPC: A61B5/05

CPC classification number: A61B5/055 ,  A61B5/415 ,  A61B5/418 ,  A61B18/1492 ,  A61B90/36 ,  A61B2017/00039 ,  A61B2017/00053 ,  A61B2090/374 ,  G01R33/285 ,  G01R33/34084 ,  G01R33/4808 ,  G01R33/5601

Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions. The antenna utilized in the combined electrophysiology and imaging catheter for receiving MR signals is preferably of the coaxial or “loopless” type. High-resolution images from the antenna may be combined with low-resolution images from surface coils of the MR scanner to produce a composite image. A system for eliminating the pickup of RF energy in which intracardiac wires are detuned by filtering so that they become very inefficient antennas. An RF filtering system is provided for suppressing the MR imaging signal while not attenuating the RF ablative current. Steering means may be provided for steering the invasive catheter under MR guidance. Other ablative methods can be used such as laser, ultrasound, and low temperatures.

Abstract translation: 使用磁共振成像来提高电生理过程精度的系统和方法包括侵入性组合电生理学和成像天线导管，其包括用于接收磁共振信号的RF天线和用于接收电位的诊断电极。 组合的电生理学和成像天线导管与磁共振成像扫描仪组合使用以在电生理诊断或治疗过程（例如心律失常消融）中引导和提供可视化。 组合的电生理学和成像天线导管还可以包括消融尖端，并且用作心内装置以将能量传递到组织的选定区域并且可视化所得到的消融损伤。 在组合的电生理学和成像导管中用于接收MR信号的天线优选地是同轴的或“无绒毛”的。 来自天线的高分辨率图像可以与来自MR扫描器的表面线圈的低分辨率图像组合以产生合成图像。 用于消除RF能量的拾取的系统，其中心内线通过滤波失谐，使得它们变得非常低效的天线。 提供RF滤波系统，用于抑制MR成像信号，同时不衰减RF消融电流。 可以提供转向装置用于在MR引导下转导侵入性导管。 可以使用其他烧蚀方法，如激光，超声和低温。

公开(公告)号：US06898454B2

公开(公告)日：2005-05-24

申请号：US09824536

申请日：2001-04-02

Applicant: Ergin Atalar ,  Harald Hartmann Quick ,  Parag Karmarkar

Inventor： Ergin Atalar ,  Harald Hartmann Quick ,  Parag Karmarkar

IPC: A61B1/273 ,  A61B1/303 ,  A61B1/307 ,  A61B1/31 ,  A61B5/055 ,  G01R33/28 ,  G01R33/34 ,  H01Q1/36 ,  H01Q1/40 ,  H01Q1/44 ,  H01Q11/08 ,  A01B5/05

CPC classification number: G01R33/34084 ,  A61B1/273 ,  A61B1/303 ,  A61B1/307 ,  A61B1/31 ,  A61B5/055 ,  A61B5/415 ,  A61B5/418 ,  A61B5/4381 ,  G01R33/285 ,  G01R33/34007 ,  G01R33/341 ,  H01Q1/36 ,  H01Q1/362 ,  H01Q1/40 ,  H01Q1/44 ,  H01Q11/08

Abstract: The present invention provides systems and methods for the evaluation of the urethra and periurethral tissues using an MRI coil adapted for insertion into the male, female or pediatric urethra. The MRI coil may be in electrical communication with an interface circuit made up of a tuning-matching circuit, a decoupling circuit and a balun circuit. The interface circuit may also be in electrical communication with a MRI machine. In certain practices, the present invention provides methods for the diagnosis and treatment of conditions involving the urethra and periurethral tissues, including disorders of the female pelvic floor, conditions of the prostate and anomalies of the pediatric pelvis.

Abstract translation: 本发明提供了使用适于插入到男性，女性或儿科尿道中的MRI线圈来评估尿道和尿道周围组织的系统和方法。 MRI线圈可以与由调谐匹配电路，去耦电路和平衡 - 不平衡转换电路组成的接口电路电连通。 接口电路也可以与MRI机器电连通。 在某些实践中，本发明提供了用于诊断和治疗涉及尿道和尿道周围组织的病症的方法，包括女性骨盆底部疾病，前列腺疾病和儿科骨盆异常。

公开(公告)号：US06778689B1

公开(公告)日：2004-08-17

申请号：US09681224

申请日：2001-02-28

Applicant: Pelin Aksit ,  J. Andrew Derbyshire ,  Ergin Atalar

Inventor： Pelin Aksit ,  J. Andrew Derbyshire ,  Ergin Atalar

IPC: G06K900

CPC classification number: G01R33/4833 ,  A61B5/055 ,  A61B5/06 ,  A61B5/7257 ,  G01R33/285 ,  G06T15/20

Abstract: A real-time imaging and visualization method and system that allows multiple field-of-view imaging on multiple receiver channels is disclosed. The method and system implement a semi-bit reversed modified phase-encoding scheme to acquire identical data over all receiver channels, and to reconstruct independently on each channel an image thereby providing multiple FOV images. The method and system provide for real-time catheter tracking where separate receiver channels collect anatomical roadmap data, guidewire data, and catheter data. The present invention uses a loopless antenna to acquire projection images thereby allowing the entire antenna and structures within its diameter of sensitivity to appear as a bright signal and a long narrow connected region. The present invention allows for very narrow FOV imaging for guidewire and catheter channels as well as full FOV imaging for roadmap image reconstruction. Thus, multiple FOV images are displayed together, improving visualization of the interventional device placement.

Abstract translation: 公开了一种实时成像和可视化方法和系统，其允许在多个接收机通道上进行多个视场成像。 该方法和系统实现了一种半位反向修改的相位编码方案，以在所有接收机通道上采集相同的数据，并且在每个通道上独立地重构图像从而提供多个FOV图像。 该方法和系统提供实时导管跟踪，其中单独的接收器通道收集解剖路线图数据，导丝数据和导管数据。 本发明使用无孔天线来获取投影图像，从而允许整个天线和结构在其直径范围内呈现为亮信号和长窄连接区域。 本发明允许用于导丝和导管通道的非常窄的FOV成像以及用于路线图像重建的全FOV成像。 因此，多个FOV图像被一起显示，改善介入装置放置的可视化。

公开(公告)号：US06284971B1

公开(公告)日：2001-09-04

申请号：US09449027

申请日：1999-11-24

Applicant: Ergin Atalar ,  Ogan Ocali

Inventor： Ergin Atalar ,  Ogan Ocali

IPC: H01B718

CPC classification number: H01P3/06 ,  A61N1/086 ,  H01B11/1895 ,  H01P1/202

Abstract: A coaxial cable which may be a magnetic resonance imaging coaxial cable is designed for enhanced safety so as to reduce the risk of excessive heating or burns to a user. The cable has an elongated axially oriented inner conductor and an axially oriented outer shield conductor in spaced relationship with respect thereto with a first dielectric material disposed therebetween. The outer shield conductor has an annular inner shield portion and segmented outer shield portions which are electrically connected to the inner shield portion. In certain preferred embodiments, a second dielectric material having a higher dielectric constant than the first dielectric material is disposed between the inner shield portion and the segmented outer shield portions. In one embodiment, an electrically conductive element extends between the segmented outer shield portions and the inner shield portion and terminates in spaced relationship therewith. In another embodiment, a capacitor may be introduced between the inner shield portion and the segmented outer shield portions.

Abstract translation: 可以是磁共振成像同轴电缆的同轴电缆被设计用于增强安全性，以便降低对使用者过度加热或烧伤的风险。 电缆具有细长的轴向取向的内导体和相对于其间隔开的轴向取向的外屏蔽导体，其间设置有第一介电材料。 外屏蔽导体具有环形内屏蔽部分和与内屏蔽部分电连接的分段外屏蔽部分。 在某些优选实施例中，具有比第一介电材料更高的介电常数的第二电介质材料设置在内屏蔽部分和分段的外屏蔽部分之间。 在一个实施例中，导电元件在分段的外屏蔽部分和内屏蔽部分之间延伸并且以间隔开的关系终止。 在另一个实施例中，可以在内屏蔽部分和分段的外屏蔽部分之间引入电容器。

公开(公告)号：US6031375A

公开(公告)日：2000-02-29

申请号：US979121

申请日：1996-11-26

Applicant: Ergin Atalar ,  Ogan Ocali

Inventor： Ergin Atalar ,  Ogan Ocali

IPC: A61B5/055 ,  G01R33/28 ,  G01R33/32 ,  G01R33/34 ,  G01R33/54 ,  G01V3/00

CPC classification number: G01R33/54 ,  G01R33/285 ,  G01R33/34084

Abstract: A method of magnetic resonance imaging employs cylindrical coordinates and in one embodiment has an elongated catheter which is operatively associated with an RF pulse transmitting antenna and an RF pulse transmitting body coil. A main magnetic field is imposed on the region of interest. Circumferential phase encoding is accomplished by applying an initial RF pulse from either the catheter antenna or the body coil and subsequently applying an initial series of RF pulses with the source alternating between the antenna and the body coil. Radial phase encoding is effected by applying a first RF pulse which in a second embodiment is followed by a second RF pulse. A longitudinal gradient magnetic pulse is applied in the region of interest to spatially encode magnetic resonance signals. The cylindrical coordinate imaging is obtained by combining the circumferential phase encoding information the longitudinal magnetic encoding information with or without the radial phase encoding information. Other embodiments not employing catheter antennas employ two antennas with non-uniform phase profiles with the pulse sequences employed with the antennas. Corresponding apparatus is provided.

Abstract translation: 磁共振成像的方法使用圆柱坐标，并且在一个实施例中具有可操作地与RF脉冲发射天线和RF脉冲发射体线圈相关联的细长导管。 主要的磁场被施加在感兴趣的区域上。 通过从导管天线或身体线圈施加初始RF脉冲并随后施加初始的RF脉冲序列来实现周期相位编码，其中源极在天线和体线圈之间交替。 径向相位编码通过施加第一RF脉冲来实现，在第二实施例中，第一RF脉冲之后是第二RF脉冲。 在感兴趣的区域中施加纵向梯度磁脉冲以空间编码磁共振信号。 圆周坐标成像通过将周向相位编码信息与纵向磁编码信息相加或不存在径向相位编码信息来获得。 不采用导管天线的其他实施例采用具有与天线一起使用的脉冲序列的非均匀相位曲线的两个天线。 提供相应的设备。