Abstract:
The invention relates to an ultrasound visualization system (111, 311) for tracking a position of an interventional device (112) based on a stream of live ultrasound images (113). A processor (117) receives the stream of live ultrasound images (113), extracts a reference image (118) that includes an anatomical feature (119), extracts from the stream of live ultrasound (113) images a current image (120) that includes a portion of the anatomical feature (119) and a portion of the interventional device (112) at a current position (121), matches the portion of the anatomical feature in the current image 120 with the anatomical feature in the reference image (118) to determine a spatial relationship between the current position of the interventional device and the anatomical feature in the reference image (118), and indicates, in the reference image (118), the current position (121) of the interventional device (112), based on the determined spatial relationship.
Abstract:
Prostate biopsy systems are provided that include a 3D ultrasound probe support configured to receive an ultrasound probe for transperineal imaging. One or more template grids can have a plurality of apertures extending therethrough to receive and guide a biopsy needle along a trajectory associated with respective apertures when the template grid is fixed to the support and the biopsy system is positioned in the perineal area of a patient. Patient-specific template grids can also be developed and produced. This system enables fully transperineal prostate biopsy (i.e. both imaging and needle placement are perineal) and eliminates the need for an external racking device for image fusion as well as needle tracking. In addition, it reduces the infection risk associated to transrectal approach.
Abstract:
The present invention relates to determining the rotation of an interventional device in an ultrasound field. An interventional device is provided that is suitable for being tracked in an ultrasound beam of a beamforming ultrasound imaging system by correlating transmitted ultrasound signals from the beamforming ultrasound imaging system as detected by ultrasound receivers attached to the interventional device with the beamforming beam sequence of the ultrasound signals. The interventional device includes a longitudinal axis (A - A'), a first linear sensor array (12) comprising a plurality of ultrasound receivers (R 1..n ) wherein each ultrasound receiver has a length (L) and a width (W), and wherein the array extends along the width (W) direction. Moreover the first linear sensor array (12) is wrapped circumferentially around the interventional device with respect to the axis (A - A') such that the length (L) of each ultrasound receiver is arranged lengthwise with respect to the axis (A - A').
Abstract:
An apparatus and method for generating a fused scan image from a plurality of anatomical scan images of a patient. A tracking system is used to track the physical position and orientation of a scanner transducer, such as an ultrasound probe, which is used to obtain the anatomical scan images. The tracking system may also be used to track markers positioned on the patient for tracking anatomical movement of the patient. An image-processing based fusion is applied to the plurality of anatomical scan images based on the tracked position and orientation of the scanner transducer and the tracked patient anatomical movement to generate a fused scan image. The anatomical movement may comprise respiratory movement of the patient. An electrocardiogram (ECG) signal from the patient may be used to time synchronize tracking information generated by the tracking system with the plurality of anatomical scan images.
Abstract:
Methods, system, and devices that are adapted to restrict the movement of an ultrasound transducer about at least one axis or point, and tag a plurality of frames of electronic signals indicative of information received by the ultrasound transducer with information sensed by an orientation sensor. The methods, system, and devices can generate a 3D ultrasound volume image of the patient by positioning the plurality of tagged frames of electronic signals at their respective orientations relative to the axis or point.
Abstract:
An exemplary system, method and computer-accessible medium for determining a location of a urethra of a patient, can be provided, which can include, for example, receiving first imaging information related to a portion(s) of a prostate of the patient, causing an injection of a contrast composition into a catheter in the urethra, receiving second imaging information related to the portion(s) and the urethra having the contrast composition therein, and determining the location of the urethra based on the first and second imaging information. The contrast composition can include an aerated gel. The location can be determined based on a difference between the first and second imaging information. The first and second imaging information can be generated using a computed tomography arrangement.
Abstract:
The present invention provides a method and a system for medical imaging and information display. According to an aspect of the present invention, there is proposed a method (10) of medical imaging and information display, comprising: acquiring (11) imaging data of each point of a plurality of points in an imaging plane or imaging volume of a subject in each mode of a plurality of different imaging modes of a medical imaging apparatus; deriving (12), for said each point, a value by applying the imaging data of the point in said each mode and the imaging data of at least one other point of said plurality of points adjacent to the point in said each mode to a predetermined model, wherein the predetermined model is selected in accordance with a clinical medical application related to the subject; constructing (13) an image based on all the derived values; and displaying (14) the constructed image to a user. Accordingly, the novel method of medical imaging and information display may reduce the burden of doctors, and provide them with an image with a higher definition compared to the conventional ROI method.