Abstract: A system is provided for determining the position of an interventional device inside a lumen. The interventional device comprises a distal portion inside the lumen and a proximal portion outside the lumen and the system comprises a processor. The processor is configured to receive a first estimated position of the distal portion of the interventional device inside the lumen from a first system and receive an estimated displacement of the distal portion of the interventional device inside a lumen from a second system, wherein the estimated displacement is representative of the movement of the distal portion of the interventional device inside the lumen. The processor is further configured to determine a second estimated position of the distal portion of the interventional device inside the lumen based on the first estimated position and the estimated displacement.

Abstract: A system includes a processor circuit that receives intraluminal images obtained by an intraluminal imaging device during movement through a patient’s body lumen. The processor circuit outputs, to a display, a visual representation of user guidance in response to the processor circuit identifying, among the intraluminal images, a candidate intraluminal image. The user guidance includes stopping the movement and instructing the patient to initiate deep breathing. The processor circuit receives additional intraluminal images obtained by the intraluminal imaging device while the movement is stopped and the patient is deep breathing. The processor circuit determines if a shape and/or size of the body lumen changes in the additional intraluminal images. The processor circuit accepts or rejects the candidate intraluminal image based on if the shape and/or size of the body lumen changes.

Abstract: The invention relates to a portable device (1100) comprising a bottom surface (BS) intended to be in contact with a textile (TXT). The portable device comprises an image sensor (5) for taking an image of a textile, and an illumination system (6) for illuminating a portion of the textile when said image is being taken. The portable device also comprises a control unit (8a) for executing an algorithm stored in the portable device, using the taken image as an input of said algorithm, to obtain a classification of the textile. The image sensor and the control unit are integrated within the portable device. The image sensor has an active surface sensitive to light, which is oriented compared to said bottom surface (BS), with an absolute value of the orientation angle being in the range 15-70 degrees; and/or the illumination system (6) has a light source oriented compared to the said bottom surface (BS), with an absolute value of the orientation angle being in the range 15-70 degrees.

Abstract: Systems and methods for suppressing off-axis sidelobes and/or clutter, near-field reverberation clutter, and/or grating lobe contributions are disclosed. A dual apodization with median (DAM) filtering technique is disclosed. The dual apodization technique may include summing aligned channel data with apodization functions (406, 412, 414) with complementary apertures applied. Median values for a zero function (RF3) and the resulting signals (RF1, RF2) from the complementary apertures are determined to generate a median value signal (416, MVS). The median value signal is used to generate an ultrasound image with enhanced image contrast. A method of image smoothing of the ultrasound image with enhanced image contrast is also disclosed. The smoothed image may include low frequency components of the ultrasound image with enhanced image contrast and high frequency components of an original image.

Abstract: The invention provides an ultrasound data processing method (30) for detecting presence of an intravascular object in a vessel lumen based on analysis of acquired intravascular ultrasound data of the lumen. The method comprises receiving (32) data comprising multiple frames, and each frame containing data for a plurality of radial lines, corresponding to different circumferential positions around the IVUS device body, and reducing (34) the data to a single representative value for each radial line in each frame. These representative values are subsequently processed to derive (36) values for at least each frame representative of a probability of presence of an object within the given frame. Based on the probability values, a region within the data occupied by an intravascular object, for instance a consecutive set of frames occupied by an object, is determined (38).

Abstract: The invention relates to an active marker device (100) for being introduced into a human tissue and for tracking a region of interest of a human body. The active marker device comprises a light source (101) for emitting light such that the emitted light can be detected by an optical sensor. In this way, the active marker device and/or the region of interest can be tracked by a tracking system comprising the optical sensor. The active marker device (100) further comprises a switch (102) for turning the light source on and off and for operating the light source in a pulsed mode.

Abstract: The invention relates to a method for adaptive beamforming of ultrasound signals, the method comprising the steps of (a) Receiving time-aligned RF signals acquired by multiple ultrasound transducer elements in response to an ultrasound transmission; (b) Determining content-adaptive apodization weights for beamforming the time-aligned RF signals by applying a trained artificial neural network (16) to the time-aligned RF signals; and (c) Applying the content-adaptive apodization weights to the time-aligned RF signals to calculate a beamformed output signal. The invention also relates to a method for training an artificial neural network (16) useful in adaptive beamforming of ultrasound signals, and a related computer program and system.

Abstract: An active marker device (100) is introducible into a human tissue and for tracking a region of interest of a human body. The active marker device includes a light source (101) for emitting light such that the emitted light can be detected by an optical sensor. In this way, the active marker device and/or the region of interest can be tracked by a tracking system including the optical sensor. The active marker device (100) also includes a switch (102) for turning the light source on and off and for operating the light source in a pulsed mode.

Abstract: An ultrasound image compounding method that is suitable for use with an ICE catheter that includes a first ultrasound transceiver array and a second ultrasound transceiver array, the first ultrasound transceiver array and the second ultrasound transceiver array being axially separated along a length of the ICE catheter, is described. In the method, first array data corresponding to ultrasound signals detected by the first ultrasound transducer array in response to an insonification of a region of interest by the first ultrasound transducer array at a first insonification angle; and second array data corresponding to ultrasound signals detected by the second ultra- sound transducer array in response to an insonification of the region of interest by the second ultrasound transducer array at a second insonification angle; are received. A compound image corresponding to the region of interest is generating based on the first array data and the second array data.

Abstract: The invention relates to a method of operating a textile treatment device comprising a heatable soleplate intended to be in contact with a textile for treating the textile. The method comprises a first step (1001) of setting a first temperature target for the heatable soleplate, and a step (1002) of detecting movement of said textile treatment device. If the step (1002) of 5 detecting movement did not detect any movement of said textile treatment device during more than a given first time duration, a step (1004) of actively decreasing the temperature of the heatable soleplate (4) up to reaching a first given temperature having a value below said first temperature target.

Abstract: The present invention relates to medical instrument tracking. In order to facilitate tracking a medical instrument, a system (100) is provided for tracking a medical instrument. The system comprises an instrument marker (14), a tracking arrangement (16), and a processing unit (18). The instrument marker is attached to the medical instrument on a marker position (20). The tracking system is configured to detect line segments (22) in the 5 field of interest and to detect the attached instrument marker. The processing unit is configured to identify a line segment (24) on which the attached instrument marker is detected as the medical instrument, and to determine an offset (26) between a position of a medical instrument tip (28) and the marker (14) by touching a reference marker (34) on the subject with the medical instrument (10).

Abstract: The invention relates to a method of operating a textile treatment device comprising a heatable soleplate intended to be in contact with a textile for treating the textile. The method comprises a first step (1001) of setting a first temperature target for the heatable soleplate, and a step (1002) of detecting movement of said textile treatment device. If the step (1002) of 5 detecting movement did not detect any movement of said textile treatment device during more than a given first time duration, a step (1004) of actively decreasing the temperature of the heatable soleplate (4) up to reaching a first given temperature having a value below said first temperature target.

Abstract: The invention relates to a position determining apparatus (6) for determining the position of an interventional instrument (1) within a subject (4). A spatial relation between positions of a second part (3) of the interventional instrument outside the subject and a first part (2) of the interventional instrument within the subject is determined based on an actual image of the interventional instrument within the subject being preferentially an x-ray image and a provided position of the second part. Once the spatial relation has been determined, the position of the interventional instrument within the subject can be determined, while the interventional instrument is moved within the subject, based on the determined spatial relation and a determined actual position of the second part outside the subject, without necessarily acquiring a further actual image. This can allow for a reduction of a radiation dose, if rays are used for acquiring the actual image.

Abstract: The present invention relates to medical instrument tracking. In order to facilitate tracking a medical instrument, a system (100) is provided for tracking a medical instrument. The system comprises an instrument marker (14), a tracking arrangement (16), and a processing unit (18). The instrument marker is attached to the medical instrument on a marker position (20). The tracking system is configured to detect line segments (22) in the 5 field of interest and to detect the attached instrument marker. The processing unit is configured to identify a line segment (24) on which the attached instrument marker is detected as the medical instrument, and to determine an offset (26) between a position of a medical instrument tip (28) and the marker (14) by touching a reference marker (34) on the subject with the medical instrument (10).

Abstract: Systems and methods for suppressing off-axis sidelobes and/or clutter, near-field reverberation clutter, and/or grating lobe contributions are disclosed. A dual apodization with median (DAM) filtering technique is disclosed. The dual apodization technique may include summing aligned channel data with apodization functions (406, 412, 414) with complementary apertures applied. Median values for a zero function (RF3) and the resulting signals (RF1, RF2) from the complementary apertures are determined to generate a median value signal (416, MVS). The median value signal is used to generate an ultrasound image with enhanced image contrast. A method of image smoothing of the ultrasound image with enhanced image contrast is also disclosed. The smoothed image may include low frequency components of the ultrasound image with enhanced image contrast and high frequency components of an original image.

Abstract: The invention relates to a portable device (1100) comprising a bottom surface (BS) intended to be in contact with a textile (TXT). The portable device comprises an image sensor (5) for taking an image of a textile, and an illumination system (6) for illuminating a portion of the textile when said image is being taken. The portable device also comprises a control unit (8a) for executing an algorithm stored in the portable device, using the taken image as an input of said algorithm, to obtain a classification of the textile. The image sensor and the control unit are integrated within the portable device. The image sensor has an active surface sensitive to light, which is oriented compared to said bottom surface (BS), with an absolute value of the orientation angle being in the range 15-70 degrees; and/or the illumination system (6) has a light source oriented compared to the said bottom surface (BS), with an absolute value of the orientation angle being in the range 15-70 degrees.

Abstract: The present invention relates to a device (1) for vital sign measurement of a person (2), comprising presentation means (10) for presenting a person (2) with a visual theme (20), illumination means (11) for illuminating an illumination area (3), in which said person (2) is located, whose vital signs shall be measured, optical measurement means (12) for optically detecting optical detection signals (23) from said illumination area (3), evaluation means (13) for evaluating said optical detection signals (23) and deriving a vital sign information (24) from them, and control means (14) for controlling said illumination means (11) to illuminate said illumination area (3) allowing the detection of optical detection signals (23), from which a vital sign information (24) can be derived despite changes of the visual theme (20).

Abstract: Two or more images are taken wherein during the image taking a focal sweep is performed. The exposure intensity is modulated during the focal sweep and done so differently for the images. This modulation provides for a watermarking of depth information in the images. The difference in exposure during the sweep watermarks the depth information differently in the images. By comparing the images a depth map for the images can be calculated. A camera system has a lens and a sensor and a means for performing a focal sweep and means for modulating the exposure intensity during the focal sweep. Modulating the exposure intensity can be done by modulating a light source or the focal sweep or modulating the transparency of a transparent medium in the light path.

Abstract: The invention relates to an active marker device (100) for being introduced into a human tissue and for tracking a region of interest of a human body. The active marker device comprises a light source (101) for emitting light such that the emitted light can be detected by an optical sensor. In this way, the active marker device and/or the region of interest can be tracked by a tracking system comprising the optical sensor. The active marker device (100) further comprises a switch (102) for turning the light source on and off and for operating the light source in a pulsed mode.

Abstract: A multi-spectral camera comprises a blocking element (201) having at least one hole (203) allowing light to pass through. A dispersive element (205) spreads light from the at least one hole (203) in different wavelength dependent directions and a lens (207) focuses light from the dispersive element (205) on an image plane (209). A microlens array (211) receives light from the lens (207) and an image sensor (213) receives the light from the microlens array (211) and generates a pixel value signal which comprises incident light values for the pixels of the image sensor (213). A processor then generates a multi-spectral image from the pixel value signal. The approach may allow a single instantaneous sensor measurement to provide a multi-spectral image comprising at least one spatial dimension and one spectral dimension. The multi-spectral image may be generated by post-processing of the sensor output and no physical filtering or moving parts are necessary.