Koninklijke Philips Corporation N.V.

Boston University

Alyssa Torjesen

Molly Lara Flexman

Alexandru Patriciu

Shyam Bharat

Ameet Kumar Jain

Ramon Quido Erkamp

Kunal Vaidya

Alvin Chen

Ashish Panse

Sibo Li

Ronaldus Frederik Johannes Holthuizen

Marcin Arkadiusz Balicki

Torre Michelle Bydlon

Darren Roblyer

Jan Rongen

A position tracker driven display system for an interventional device () including an integration of one or more position trackers and one or more interventional tools. The position tracker driven display system employs a monitor () and a display controller () for controlling a real-time display on the monitor () of a tracking image illustrative of a navigation of a tracking node of the interventional device () within an anatomical region. The display controller () autonomously selects the tracking image among a plurality of registered spatial images illustrative of the anatomical region within an image space based on position tracking data informative of a position of the at least one position tracker within the anatomical region. The display controller () derives the autonomous selection of the tracking image from a position of the tracking node of the interventional device () relative to the image space as indicated by the position tracking data.

Automatic field of view updating of position tracked interventional device

A system includes an interface () to an optical shape sensing device () with a shape conforming to a shape of an interventional medical device (01). The system also includes a controller () with a memory () that stores instructions and a processor () that executes the instructions. The instructions cause the system to identify a shape of the optical shape sensing device () using optical shape sensing signals received via the interface (), identify the interventional medical device (01) in disparate coordinate spaces of imaging systems that image the interventional medical device (01) in disparate imaging modes, and register the coordinate spaces to each other and to the interventional medical device (01). The instructions also cause the system to obtain a segmented representation () of the interventional medical device (01), and re-register the interventional medical device (01) to one of the coordinate space based on registering the interventional medical device (01) to another of the coordinate spaces using the segmented representation ().

Interventional medical device tracking

A system for localizing a three-dimensional field of view of a beamforming ultrasound imaging probe based on a position indicator disposed within said field of view. The beamforming ultrasound imaging probe transmits and receives ultrasound signals within a three-dimensional field of view comprising a plurality of predetermined sub-volumes, each sub-volume being defined by a two dimensional array of beams. A controller causes the beamforming ultrasound imaging probe to scan the sub-volumes sequentially by transmitting and receiving ultrasound signals corresponding to each beam. A tracking system determines a position of the position indicator within the three-dimensional field of view; and determines a sub-volume in which the position indicator is located. The controller causes the beamforming ultrasound imaging probe to provide a localized field of view including the position of the position indicator by constraining the transmitting and receiving of ultrasound signals to a portion of the sub-volume in which the position indicator is located.

Ultrasound-based device localization

Method of calculating a scaled virtual grid for x-ray projection images, comprising providing at least a first and a second co-registered x-ray projection image Ij−j=1, 2, . . . of a desired anatomy of a patient (step S), defining two points Pand Pof the desired anatomy in 3-D space and determining 3-D coordinates of the two points Pand Pthereby using the x-ray projection images (step S), calculating the scaled virtual grid based on the determined 3-D coordinates of the two points Pand P(step S), and projecting and displaying the calculated grid to a user on at least one of the first and the second co-registered x-ray projection image (step S).

3-D measurements grid tool for x-ray images

A controller () for determining a shape of an interventional medical device in an interventional medical procedure based on a location of the interventional medical device includes a memory () that stores instructions and a processor () that executes the instructions. The instructions cause a system () that includes the controller () to implement a process that includes obtaining (S) the location of the interventional medical device () and obtaining (S) imagery of a volume that includes the interventional medical device. The process also includes applying (S), based on the location of the interventional medical device (), image processing to the imagery to identify the interventional medical device () including the shape of the interventional medical device (). The process further includes (S) segmenting the interventional medical device () to obtain a segmented representation of the interventional medical device (). The segmented representation of the interventional medical device () is overlaid (S) on the imagery.

Passive-ultrasound-sensor-based initialization for image-based device segmentation

Various embodiments of an X-ray imaging system employ a C-arm () and an X-ray overlay controller (). In a planning overlay display mode, the controller () processes a planning X-ray image () and a reference planning X-ray image (), both illustrative of the planning X-ray calibration device () and further processes a base X-ray image () () illustrative of a base X-ray calibration device to control a display of a planned tool trajectory overlay () and a tracked tool position overlay () onto the planning X-ray image (). In a guiding overlay display mode, the controller () processes a pair of interventional X-ray images () and a guiding X-ray image (), all illustrative of a guiding X-ray calibration device (), to control a display of a guidance tool trajectory overlay () and a racked tool position overlay () onto the guiding X-ray image ().

X-ray calibration for display overlays onto X-ray images

Various embodiments for X-ray imaging system employs a C-arm registration controller () for controlling a registration of a C-arm () to an X-ray marker () based on a generation by the C-arm () of an X-ray image () illustrative of the X-ray marker (). The system further employs a registration confirmation controller () for controlling an interactive overlay display of a virtual confirmation marker () onto a display of the X-ray image () based on the registration of the C-arm () to the X-ray marker (), and for controlling a misalignment correction of the interactive overlay display of the virtual confirmation marker () relative to the X-ray marker () as illustrated in the X-ray image () responsive to an operator interface with the interactive overlay display of the virtual confirmation marker (). The C-arm registration controller () adjusts the registration of the C-arm () to the X-ray marker () based on the misalignment correction.

Marker registration correction by virtual model manipulation

Various embodiments of the present disclosure include a C-arm registration system employing a controller () for registering a C-arm () to a X-ray ring marker (). The X-ray ring marker () includes a coaxial construction of a chirp ring () and a centric ring () on an annular base (). In operation, the controller () acquires a baseline X-ray image illustrative of the X-ray ring marker () within a baseline X-ray projection by the C-arm () at a baseline imaging pose, derives baseline position parameters of the X-ray ring marker () within the baseline X-ray projection as a function of an illustration of the centric ring () within the baseline X-ray image, and derives a baseline twist parameter of the X-ray ring marker () within the baseline X-ray projection as a function of the baseline position parameters and of an illustration of the chirp ring () within the baseline X-ray image.

X-ray ring markers for X-ray calibration

A controller for determining shape of an interventional device includes a memory that stores instructions, and a processor that executes the instructions. When executed by the processor, the instructions cause the controller to execute a process that includes controlling an imaging probe to emit at least one tracking beam to an interventional medical device over a period of time comprising multiple different points of time. The process also includes determining a shape of the interventional medical device, based on a response to the tracking beams received over the period of time from a first sensor that moves along the interventional medical device during the period of time relative to a fixed location on the interventional medical device for the period of time.

Sensor-based shape identification

A tissue oximetry system employing diffuse optical spectroscopy includes an optical subsystem and an electronics and processing subsystem, together generating modulated optical signals processing a response optical signal in order to obtain measurements of blood oxygen values for a tissue from per-wavelength absorption values. Signal sources generate RF modulation signals, and ADC circuitry generates streams of digital sample values from analog detection signals. Data acquisition circuitry and a processor (1) provide RF modulation command values in synchronism with sampling operation according to an offset pattern and rate, stepping through an RF range to obtain measurements of the absorption values in measurement intervals at least 10 times per second, (2) in each of the measurement intervals, calculate the model to obtain the blood oxygen values from the measurements of the absorption values, and display or otherwise use the obtained blood oxygen values in higher-level diagnostic assessment of tissue blood oxygenation.

Growing community of inventors

Charlestown, MA, United States of America

Alyssa Torjesen