Temperature distribution determination apparatus

    公开(公告)号:US11298028B2

    公开(公告)日:2022-04-12

    申请号:US15116278

    申请日:2015-02-02

    Abstract: The invention relates to a temperature distribution determination apparatus for determining a temperature distribution within an object (20), while an energy application element (2) applies energy to the object, especially while an ablation procedure for ablating a tumor within an organ is performed. A time-dependent first ultrasound signal is generated for an ultrasound measurement region within the object and a temperature distribution within the object is determined based on the generated time-dependent first ultrasound signal and based on a position of the energy application element (2) relative to the ultrasound measurement region tracked over time. This can ensure that always the correct position of the energy application element, which may be regarded as being a heat source, is considered, even if the energy application element moves, for instance, due to a movement of the object. This can lead to a more accurate determination of the temperature distribution.

    Acoustic 3D tracking of interventional tool

    公开(公告)号:US10660710B2

    公开(公告)日:2020-05-26

    申请号:US15023943

    申请日:2014-09-16

    Abstract: A system and method for tracking an interventional tool based on a spatial alignment of two or more acoustic sensors relative to the interventional tool include operating an acoustic imaging device to generate an acoustic image plane, and operating each acoustic sensor to output a composite acoustic sensing waveform derived from an acoustic sensing of the acoustic beam array. Each composite acoustic sensing waveform can include a plurality of acoustic beam sensing waveforms. The system and method can further include operating a tracking workstation to track a position of the interventional tool relative to the acoustic image plane derived from a waveform profile analysis of the composite acoustic sensing waveforms.

    Real-time fusion of anatomical ultrasound information and radiation delivery information for radiation therapies

    公开(公告)号:US10286228B2

    公开(公告)日:2019-05-14

    申请号:US15102333

    申请日:2014-12-05

    Abstract: A radiation therapy delivery system (10) includes an ultrasound imaging unit (26), a radiation therapy delivery mechanism (12, 56, 70, 88), a plurality of fiducials (22, 90) located internal to the subject, an image fusion unit (40), and a delivery evaluation unit (38). The ultrasound imaging unit (26) includes a transducer (30) that emits ultrasonic sound waves to image in real-time an anatomic portion of a subject (16) in a first coordinate system. The radiation therapy delivery mechanism (12, 56, 70, 88) delivers amounts of therapeutic radiation in the anatomic portion of the subject in a second coordinate system. The fiducials (22, 90) include implants or a trans-rectal ultrasound probe (80). The image fusion unit (40) registers locations of the plurality of fiducials to at least one of the first and the second coordinate system and tracks the locations of the fiducials in real-time. The delivery evaluation unit (38) identifies locations and the amounts of delivered therapeutic radiation relative to the imaged real-time anatomic portion of the subject.

    SYSTEM AND WORKFLOW FOR GRID-LESS TRANSPERINEAL PROSTATE INTERVENTIONS

    公开(公告)号:US20180325602A1

    公开(公告)日:2018-11-15

    申请号:US15776921

    申请日:2016-11-29

    Abstract: A transperinealprostate intervention device comprises a prostate intervention instrument (10), a transrectal ultrasound (TRUS) probe (12), and a mechanical or optical coordinate measurement machine (CMM) (20) attached to the TRUS probe and configured to track the prostate intervention instrument. The CMM may include an articulated arm with a plurality of encoding joints (24), an anchor end (30) attached to the TRUS probe, and a movable end (32) attached to the prostate intervention instrument. The prostate intervention instrument may, for example, be a biopsy needle, a brachytherapy seed delivery instrument, a tissue ablation instrument, or a hollow cannula. An electronic processor (40) computes a predicted trajectory (54) of the prostate intervention instrument in a frame of reference of the TRUS probe using the CMM attached to the TRUS probe. A representation (56) of the predicted trajectory is superimposed on a prostate ultrasound image (50) generated from ultrasound data collected by the TRUS probe.

    SCANNER INDEPENDENT TRACKING OF INTERVENTIONAL INSTRUMENTS
    47.
    发明申请
    SCANNER INDEPENDENT TRACKING OF INTERVENTIONAL INSTRUMENTS 审中-公开
    扫描仪独立跟踪传统仪器

    公开(公告)号:US20160367322A1

    公开(公告)日:2016-12-22

    申请号:US14898783

    申请日:2014-06-25

    Abstract: A system for tracking an instrument with ultrasound includes a probe (122) for transmitting and receiving ultrasonic energy and a transducer (130) associated with the probe and configured to move with the probe during use. A medical instrument (102) includes a sensor (120) configured to respond to the ultrasonic energy received from the probe. A control module (124) is stored in memory and configured to interpret the ultrasonic energy received from the probe and the sensor to determine a three dimensional location of the medical instrument and to inject a signal to the probe from the transducer to highlight a position of the sensor in an image.

    Abstract translation: 用于使用超声波跟踪仪器的系统包括用于发射和接收超声波能量的探头(122)和与探头相关联并被配置为在使用期间与探头一起移动的换能器(130)。 医疗器械(102)包括被配置为响应于从探头接收的超声能量的传感器(120)。 控制模块(124)存储在存储器中并且被配置为解释从探头和传感器接收的超声波能量,以确定医疗器械的三维位置,并且从传感器向探针注入信号以突出显示位置 图像中的传感器。

    ACOUSTIC HIGHLIGHTING OF INTERVENTIONAL INSTRUMENTS
    48.
    发明申请
    ACOUSTIC HIGHLIGHTING OF INTERVENTIONAL INSTRUMENTS 审中-公开
    传统仪器的声音亮点

    公开(公告)号:US20160135780A1

    公开(公告)日:2016-05-19

    申请号:US14901152

    申请日:2014-06-27

    Abstract: A system for highlighting an instrument in an image includes a probe (122) for transmitting and receiving ultrasonic energy and a marker device (120) configured to respond to a received ultrasonic signal and emit an ultrasonic signal after a delay. A medical instrument (102) includes the marker device. A control module (124) is stored in memory and configured to interpret the ultrasonic energy received from the probe and from the marker device at the probe to determine a three dimensional location of the medical instrument to highlight a position of the marker device in an image.

    Abstract translation: 用于突显图像中的仪器的系统包括用于发射和接收超声波能量的探测器(122)和被配置为响应接收到的超声波信号并在延迟之后发射超声波信号的标记装置(120)。 医疗器械(102)包括标记装置。 控制模块(124)存储在存储器中并且被配置为解释从探针接收的超声波能量和探测器处的标记装置,以确定医疗仪器的三维位置以突出显示图像中的标记装置的位置 。

    ACCURATE AND RAPID MAPPING OF POINTS FROM ULTRASOUND IMAGES TO TRACKING SYSTEMS
    49.
    发明申请
    ACCURATE AND RAPID MAPPING OF POINTS FROM ULTRASOUND IMAGES TO TRACKING SYSTEMS 有权
    从超声图像到跟踪系统的精确和快速映射

    公开(公告)号:US20150269728A1

    公开(公告)日:2015-09-24

    申请号:US14416653

    申请日:2013-07-17

    Abstract: A method for mapping coordinates between images and tracking systems includes providing (702) a calibration tool having a fixed geometric shape. The calibration tool includes first sensors associated with an imaging mode and second sensors associated with a tracking mode. The first and second sensors are distributed and mounted at known locations on the fixed geometric shape. The first sensors are located (708) in a field of view of an imaging system to determine a position of the calibration tool in image space. The second sensors are tracked (716) to determine a same position of the calibration tool in tracking space. The image space and the tracking space are mapped (722) in a common coordinate system based on artifacts of the calibration tool.

    Abstract translation: 用于映射图像和跟踪系统之间的坐标的方法包括提供(702)具有固定几何形状的校准工具。 校准工具包括与成像模式相关联的第一传感器和与跟踪模式相关联的第二传感器。 第一和第二传感器以固定的几何形状分布和安装在已知位置。 第一传感器位于成像系统的视场中,以确定校准工具在图像空间中的位置。 跟踪第二个传感器(716)以确定跟踪空间中校准工具的相同位置。 图像空间和跟踪空间基于校准工具的伪影在公共坐标系中映射(722)。

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