Abstract: System, apparatus, and method for automatic detection of arthritis according to temperature asymmetry estimation in contralateral joints is presented. Simultaneously recorded thermogram and the optical image of an inspected joint and its contralateral joint are sent to the processing unit, where they are stored, processed, and analyzed. The system, apparatus, and method automatically detects outlines of joints in thermograms and optical images. Grid of points of interest is distributed inside the inspected and the contralateral joint's outline. Temperature maps are calculated according to both grids points and the temperature disparity map is estimated. The set of inflammation regions is obtained by analyzing the temperature disparity map and collecting adjacent points containing temperature differences surpassing the threshold. The system, apparatus, and method are non-invasive and non-contact, and suitable for real world environments with natural home or health care institutions background.

Abstract: The invention relates to a method of MR imaging of an object (10) positioned in an examination volume of a MR device (1). It is an object of the invention to enable efficient spiral MR imaging even in situations of strong Bo inhomogeneity. The method of the invention comprises: subjecting the object (10) to an imaging sequence comprising at least one RF excitation pulse and sinusoidally modulated magnetic field gradients, acquiring MR signals along two or more spiral k-space trajectories (31, 32, 33) as determined by the sinusoidal modulation of the magnetic field gradients, wherein the origins of the spiral k-space trajectories are offset from each other, and reconstructing an MR image from the acquired MR signals. Moreover, the invention relates to a MR device (1) and to a computer program for a MR device (1).

Abstract: Arrangements described herein relate to a headset. The headset includes a device. The device includes a transducer configured to interact with a head of a subject. The headset further includes a manually-operated registration system configured to delineate a workspace of the transducer at the head of the subject.

Abstract: A method of operating a surgical device having a surgical tool includes allowing manual movement of the surgical tool along at least one direction, controlling the surgical device to align the surgical tool with a target using a control object having a planned geometric relationship with an anatomic feature, tracking movement of the anatomic feature during a surgical procedure, moving the control object to compensate for the movement of the anatomic feature during the surgical procedure, and controlling the surgical device to realign the surgical tool with the target using the moved control object.

Abstract: The present invention relates to an ultrasound apparatus for efficiently applying ultrasound waves over a treated area by mechanically moving the ultrasound transducer over an area larger than the Effective Radiating Area (ERA) comprising: (a) an ultrasound transducer, connected by wiring, for dispersing ultrasound waves; (b) an electric actuator for spinning a crank, wherein a shaft is eccentrically attached to said crank for rotatably whirling said transducer in circles.

Abstract: Disclosed herein are methods and systems for optical coherence tomography (OCT) angiography (OCTA). An interleaved scanning pattern is described herein for both raster and bidirectional scanning methods. The interleaved scanning pattern provides B-scans with different scanning intervals. OCTA images based on the B-scans may be combined to obtain a high dynamic range (HDR) OCTA image. Other embodiments may be described and claimed.

Abstract: An ultrasound endoscope comprises an operation portion, an insertion portion coupled to the operation portion, a distal end portion coupled to the insertion portion and including a projecting portion and a distal end body portion, a balloon channel disposed inside the insertion portion and extending from the operation portion to the rigid distal end portion, and a balloon mounting portion between the projecting portion and the distal end body portion. The balloon channel includes a bending portion in the rigid distal end portion and a balloon outlet that is formed at the bending portion and connected to the balloon mounting portion. A cross section of the bending portion includes a first bending angle and a second bending angle, and the first bending angle is smaller than the second bending angle.

Abstract: A magnetic resonance imaging method includes: obtaining three-dimensional under-sampling data of a target object based on a first three-dimensional magnetic resonance imaging sequence; obtaining a three-dimensional point spread function based on the three-dimensional under-sampling data or a two-dimensional mapping data of the target object; obtaining a sensitivity map of the target object based on the data collected by three-dimensional low-resolution complete sampling; performing imaging reconstruction to the three-dimensional under-sampling data based on the three-dimensional point spread function and the sensitivity map to obtain a reconstructed magnetic resonance image. The first three-dimensional magnetic resonance imaging sequence has a first sinusoidal gradient field on a phase direction and a second sinusoidal gradient field on a layer selection direction. 0-order moments of the first and the second three-dimensional magnetic resonance imaging sequences are 0.

Abstract: A device including a measuring unit having probes for emitting or detecting light with optical attenuators at points forming a regular triangle, and a control unit to: set transmittances of the attenuators so that an amount of light from the probes becomes a desired value; identify, among three channels, a first channel having a maximum light amount; perform detection in second and third channels between first and second probes of the first channel and a third probe; adjust transmittance of the attenuator of the first or the second probe of the channel having a smaller light amount so that light amounts in the second and the third channels become equal; adjust transmittance of the attenuator of the third probe so that the light amount of the second or the third channel becomes equal to the light amount of the first channel; and perform measurement with all transmittances after adjustments maintained.

Abstract: A catheter device for crossing occlusions includes an elongate body, a central lumen extending within the elongate body from the proximal end to the distal end, a rotatable tip at the distal end of the elongate body, and an OCT imaging sensor. The rotatable tip is configured to rotate relative to the elongate body. The OCT imaging sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. A distal end of the elongate body includes one or more markers configured to occlude the OCT imaging sensor as it rotates. A fixed jog in the elongate body proximal to the distal end of the catheter positions the distal end of the catheter at an angle relative to the region of the catheter proximal to the fixed jog and is aligned with the one or more markers on the elongate body.

Abstract: A system and method to analyze image data. The image data may be used to assist in determine the presence of a feature in the image. The feature may include a bubble.

Abstract: The disclosure relates to a system for immobilizing and supporting a subject in a medical procedure. The system may include a treatment apparatus configured to generate a radiation beam, and a device for immobilizing a subject. The device may include an immobilizing component for immobilizing at least one portion of the subject, and a radio frequency (RF) coil configured to receive a magnetic resonance (MR) signal related to the at least one portion of the subject. The immobilizing component may be configured to switch between a first mode and a second mode. The first mode may correspond to a positive pressure or a constant pressure related to the device. The second mode may correspond to a space of vacuum or substantially of vacuum related to the device. The RF coil may be located in the immobilizing component according to a position where the radiation beam is incident on the device.

Abstract: A multi-part medical marker (1) comprising a marker core consisting of at least two corresponding parts (2a, 2b) and comprising a detectable surface, wherein the surface is substantially formed from a detectable coating (4) which is applied to the surface (3) of the parts (2a, 2b) of the marker core (2). An apparatus for producing a medical marker comprising a marker core (?2) and a detectable surface, comprises: —a first feeding device (16) for providing the marker core (2); —an application device (17) for applying a detectable layer to the surface (3) of the marker core (2); and—a transport device (18) for transporting the marker core (2) within the apparatus.

Abstract: A system and method for data filtering of passageway sensor data include traversing a plurality of passageways with a flexible elongate device and recording, during the traversing, positional data using one or more sensors coupled to the flexible elongate device. The positional data includes a first plurality of positional data points recorded during a first insertion of the flexible elongate device into a first passageway and a second plurality of positional data points recorded during a first retraction of the flexible elongate device within the first passageway. The system and method further include labeling the first plurality of positional data points and the second plurality of positional data points as first common passageway positional data points and registering the positional data with a model of the plurality of passageways, wherein the registering includes matching the first common passageway positional data points with corresponding first common passageway model data points.

Abstract: A system for navigating to a catheter to a target is disclosed. The system includes a probe and a workstation. The probe is configured to be navigated through a patient's airways and includes a location sensor. The workstation is in operative communication with the probe. The workstation includes a memory and at least one processor. The memory stores a navigation plan and a program that, when executed by the processor, is configured to generate a 3D rendering of the patient's airways, generate a view using the 3D rendering, and display the view featuring at least a portion of the navigation plan. Generating the view includes executing a first transfer function for a first range from a distal tip of the location sensor and executing a second transfer function for a second range from the distal tip of the location sensor.

Abstract: The present invention includes a method and apparatus for improved magnetic resonance imaging with simultaneous fat and fluid suppression of a subject comprising: acquiring four images, in-phase (IP) and out-of-phase (OP) at a short and a long echo time (TE) using a single-shot turbo spin echo from one or more magnetic resonance imager excitations: processing at least a pair of IP and OP images at a short and a long TE using single-shot turbo spin echo using a Dixon reconstruction; processing the pair of IP and OP images; subtracting the long TE water-only image from the shared-field-map Dixon reconstruction from the short TE water-only image to provide a fluid attenuation; processing water-only and fat-only images at the short and long TE to generate quantitative fat-fraction map; and reconstructing one or more 3D magnetic resonance images.

Abstract: A tracker, a surgical tool system, a surgical navigation system, and a method for operating a surgical navigation system are provided. The tracker is configured to be associated with a patient or a surgical tool that is to be tracked by the surgical navigation system. The tracker comprises an optical fibre having a longitudinal extension and configured to be optically coupled to a light source such that the optical fibre transmits light emitted by the light source. The optical fibre has a lateral surface along its longitudinal extension and is configured to emit light via at least a portion of the lateral surface.

Abstract: A dual modality endocavity imaging and treatment system for detection of cancer and targeted biopsy and treatment procedures, comprising: a housing; a nuclear detector system housed within the housing and configured for detecting nuclear radiation imaging data; an ultrasound detector system housed within the housing for detecting ultrasound imaging data; a needle associated with the housing and adjustably positionable relative thereto; and a data processing module configured to receive the nuclear radiation imaging data and the ultrasound imaging data and to generate and output an image showing the relative position of the needle and an endocavity object of interest. The needle may include a distinct radiation signature to facilitate imaging thereof.

Abstract: The present disclosure describes ultrasound imaging systems and methods that may be used to assist clinicians in locating lesions during an ultrasound exam that were previously located from images acquired by another imaging system, for example, a magnetic resonance imaging system. A lesion location interface is disclosed that provides visual indications of predicted lesion locations on a display. The predicted lesion locations may be determined by a deformation model included in an ultrasound imaging system as disclosed herein.

Abstract: A catheter including an elongated tube having a channel; an inflatable chamber coupled to the elongated tube and in fluid communication with the channel; and a high-density liquid delivery system in fluid communication with the channel, the high-density liquid delivery system delivering a high-density liquid to the inflatable chamber via the channel to cause the inflatable chamber to expand.