A61B6/022

Automatically determining 3D catheter location and orientation using 2D fluoroscopy only

A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising: (a) capturing a stream of digitized 2D images from a single-plane fluoroscope; (b) detecting an image of the medical object in a subset of the digital 2D images; (c) applying to the digital 2D images calculations which preserve original pixel intensity values and permit statistical calculations thereon, using (i) multiple sequential determinations of a midline of the medical object image, (ii) a plurality of unfiltered raw-data cross-sectional intensity profiles perpendicular to each sequentially-determined midline, (iii) removal of outlier profiles from each plurality of profiles, and (iv) statistically combining each plurality of profiles to estimate image dimensions; (d) applying conical projection and radial elongation corrections to the image measurements; and (e) calculating the 3D position and orientation of the medical object from the corrected 2D image measurements.

METHOD AND APPARATUS FOR DETECTING DOSE DISTRIBUTION OF ARTICLE

The present disclosure provides a method and apparatus for detecting a dose distribution of an article. The method includes performing a fluoroscopy scanning on the article to be detected, to obtain mass data per unit area or unit volume for each point of the article to be detected; obtaining corresponding dose distribution data based on the mass data per unit area or unit volume and a preset mapping model, wherein the preset mapping model includes a mapping relationship between mass per unit area or unit volume and the dose distribution of the article under irradiation of a preset amount of energy; and matching the dose distribution data with a fluoroscopy image of the article to be detected, to generate and display a radiation image.

Simulated method and system for navigating surgical instrument based on tomography

A simulated method and system for surgical instrument based on tomography are provided. The method includes obtaining a biological stereoscopic image and inputting a parameter set of an implant to be implanted, denoting a target position and an initial position in the biological stereoscopic image, estimating a dimensional coordinate of a contact area of the implant and a living organism when the implant has been implanted into the living organism based on the parameter set, the target position and the initial position in the biological stereoscopic image, and obtaining a physiological data set by re-sampling corresponding to the dimensional coordinate of the implant in the living organism for evaluating the effect after the implant has been implanted into the living organism. Surgeons may evaluate the effect after implantation of implant into the living organism by using the simulated method, enhancing the overall quality and result of the surgery.

X-ray diagnosis apparatus
10863960 · 2020-12-15 · ·

According to one embodiment, apparatus includes imaging unit, generator, position specifier, direction specifier and angle setter. Imaging unit images object into which a device is inserted, from first and second direction. Generator generates first image data and second image data each corresponding to first and second direction. Position specifier specifies position of the device based on first and second image data. Direction specifier specifies moving direction of the device based on positions of the device specified by position specifier. Angle setter sets first angle corresponding to first direction and second angle corresponding to second direction in accordance with moving direction of the device.

METHOD FOR PRODUCING COMPLEX REAL THREE-DIMENSIONAL IMAGES, AND SYSTEM FOR SAME
20200383654 · 2020-12-10 ·

The present invention relates to a method for producing complex reality three-dimensional images and a system for same, the method comprising: (a) a step for determining first reality three-dimensional spatial coordinates for a three-dimensional image of a human body; (b) a step for determining second reality three-dimensional spatial coordinates for an image of an item of medical equipment; (c) a step for obtaining a three-dimensional image of the area surrounding the medical equipment, from an imaging means in the medical equipment, and determining third reality three-dimensional spatial coordinates for said image; (d) a step for examining an image that is at the same coordinates in the three kinds of three-dimensional spatial coordinates; and (e) a step for producing a complex reality three-dimensional image by selecting the one image that is at the same coordinates, if there is one image at the same coordinates, or selecting the necessary image or images from among a plurality of images, if there are multiple images at the same coordinates.

Manipulation of a respiratory model via adjustment of parameters associated with model images

A method and apparatus for manipulation of a respiratory model via adjustment of parameters associated with model images is described. A subset of the images that are used with the model that is associated with the position and motion of a targeted region of the patient to receive radiation treatment may be identified. The subset of images may be sorted. A graphical user interface (GUI) that identifies two or more of the images of the sorted subset may be provided. A selection associated with one of the images of the sorted subset may be received by the GUI. Furthermore, a new model to identify the targeted region based on the selection that is associated with one of the two or more images may be generated.

Tracking soft tissue in medical images
11865368 · 2024-01-09 · ·

The present invention relates to a medical data processing method of determining the representation of an anatomical body part (2) of a patient (1) in a sequence of medical images, the anatomical body part (2) being subject to a vital movement of the patient (1), the method being constituted to be executed by a computer and comprising the following steps: a) acquiring advance medical image data comprising a time-related advance medical image comprising a representation of the anatomical body part (2) in a specific movement phase; b) acquiring current medical image data describing a sequence of current medical images, wherein the sequence comprises a specific current medical image comprising a representation of the anatomical body part (2) in the specific movement phase, and a tracking current medical image which is different from the specific current medical image and comprises a representation of the anatomical body part (2) in a tracking movement phase which is different from the specific movement phase; c) determining, based on the advance medical image data and the current medical image data, specific image subset data describing a specific image subset of the specific current medical image, the specific image subset comprising the representation of the anatomical body part (2); d) determining, based on the current medical image data and the image subset data, subset tracking data describing a tracked image subset in the tracking current medical image, the tracked image subset comprising the representation of the anatomical body part (2).

SYSTEMS, INSTRUMENTS AND METHODS FOR SURGICAL NAVIGATION WITH VERIFICATION FEEDBACK

Systems, instruments, and methods for surgical navigation with verification feedback are provided. The systems, instruments, and methods may be used to verify a trajectory of a surgical tool during a procedure. The systems, instruments, and methods may receive one or more captured images of an anatomical portion of a patient; execute a surgical plan to insert the surgical tool into the anatomical portion; receive sensor data collected from one or more sensors being inserted into the anatomical portion; determine whether the sensor data corresponds to the surgical plan; and send, in response to determining that the sensor data does not correspond to the surgical plan, an alert indicating that the surgical tool is not being inserted according to the surgical plan. The one or more sensors may be attached to the surgical tool.

Medical image processing apparatus, medical image processing method, computer-readable medical-image processing program, moving-object tracking apparatus, and radiation therapy system

A medical image processing apparatus comprising: a first input interface configured to acquire a three-dimensional volume image of an object which is provided with at least one marker, the three-dimensional volume image being generated by imaging the object using a medical examination apparatus; a second input interface configured to acquire geometry information of an imaging apparatus which is used for imaging the object to generate a fluoroscopic image of the object; and a specific-setting-information generator configured to generate specific setting information based on the three-dimensional volume image and the geometry information, the specific setting information being used for setting of imaging for generating an image depicting the at least one marker or setting of image processing of the image depicting the at least one marker.

Radiography system and method for operating radiography system

A position detection unit is disposed at an exposure position that is included in a camera image and a field of view of a camera and outputs a position signal indicating the position of a part of a peripheral portion of an electronic cassette. The calculation unit calculates an in-image cassette position which is the position of the electronic cassette in the camera image, on the basis of the position, direction, and size of the position detection unit in the camera image and the position signal. A composite image generation unit generates a composite image of the camera image and a cassette frame indicating the in-image cassette position. A display controller displays the composite image on a touch panel.