Patent classifications
A61B5/4381
Thermal therapy with dynamic anatomical boundaries using MRI-based temperature uncertainty maps
Temperature uncertainty maps are calculated based on a rolling window of temperature maps, which is updated as new temperature maps are generated. The rolling window mitigates the effect of transient motion during a thermal therapy procedure. A clinician or an automated control system can then update a portion of an anatomical boundary or the thermal therapy applicator center based on the temperature uncertainty map.
Automated co-registration of prostate MRI data
Medical imaging analysis systems are configured to perform automatic image registration algorithms that perform three-dimensional (3D), affine, and/or intensity-based co-registration of magnetic resonance imaging (MRI) data, such as multiparametric MRI (mpMRT) data, using mutual information (MI) as a similarity metric. An apparatus comprises a computer-readable storage medium storing a plurality of imaging series of magnetic resonance imaging (MRI) data for imaged tissue of a patient; and a processor coupled to the computer-readable storage medium. The processor is configured to receive the imaging series of MRI data; identify a volume of interest (VOI) of each image of the imaging series of MRI data; compute registration parameters for the VOIs through the maximization of mutual information of the corrected VOIs; and register the VOIs using the computed registration parameters.
Magnetic resonance imaging apparatus, method, and storage medium
A magnetic resonance imaging apparatus according to an embodiment includes: a coil configured to receive a magnetic resonance signal emitted from a subject due to influence of a radio frequency magnetic field; and processing circuitry. The processing circuitry is configured to detect at least one tissue from among a femoral head, the pelvis, an articular labrum, the pubic symphysis, the urethra, and the apex of the prostate of the subject, from a locator image based on the magnetic resonance signal and corresponding to a range including the prostate of the subject. The processing circuitry is configured to determine a region to be imaged of the prostate of the subject, on the basis of the detected tissue.
PRESSURE SENSOR ARRAY FOR URODYNAMIC TESTING AND A TEST APPARATUS INCLUDING THE SAME
This application relates to a pressure sensor array for urodynamic testing capable of simultaneously measuring bladder pressure, prostate pressure, and urethral pressure, and to a test apparatus including the pressure sensor array. In one aspect, the pressure sensor array for urodynamic testing is installed in a catheter and includes a base substrate having flexibility.
The pressure sensor array may also include a bladder pressure sensor formed on a portion of the base substrate to be positioned in bladder and measuring bladder pressure. The pressure sensor array may further include a prostate pressure sensor formed on a portion of the base substrate to be positioned in prostate and measuring prostate pressure. The pressure sensor array may further include a urethral pressure sensor formed on a portion of the base substrate to be positioned in urethra and measuring urethral pressure.
SYSTEMS AND METHODS FOR VOLUMETRIC ACQUISITION IN A SINGLE-SIDED MRI SCANNER
A method for performing magnetic resonance imaging is provided. The method includes providing a magnetic resonance imaging system comprising: a radio frequency receive system comprising a radio frequency receive coil, and a housing, wherein the housing comprises a permanent magnet for providing an inhomogeneous permanent gradient field, a radio frequency transmit system, and a single-sided gradient coil set. The method also includes placing the receive coil proximate a target subject; applying a sequence of chirped pulses via the transmit system; applying a multi-slice excitation along the inhomogeneous permanent gradient field; applying a plurality of gradient pulses via the gradient coil set orthogonal to the inhomogeneous permanent gradient field; acquiring a signal of the target subject via the receive system, wherein the signal comprises at least two chirped pulses; and forming a magnetic resonance image of the target subject.
Device for anatomical sensing system-guided endorectal prostate biopsy
An anatomical sensing system-guided prostate procedure device that includes a housing having a proximal end and a distal end. The housing may be divided into a distal housing section, a mid housing section, and a proximal housing section, wherein the distal housing section is configured for insertion into the anus and retention in the rectum of a subject. The device further includes an instrument convergence point disposed between the proximal end and the distal end, the convergence point configured to allow an instrument pass though the instrument convergence point at a variable angle; and an instrument angle orienting system at the proximal end of the housing, the angle orienting system directing an orientation of the variable angle about the convergence point. Methods of the using an anatomical sensing system-guided prostate procedure device and system including the same.
Prostate glove, fingertip optical encoder, connector system, and related methods
Systems and methods are provided herein that generally involve measuring a prostate or other object. In some embodiments, a finger clip having a roller ring or wheel rotatably mounted thereto is disposed within an inflatable membrane. The roller ring can include a measurement pattern positioned opposite to optical fibers configured to receive light reflected from the measurement pattern. A user can put on the finger clip, position the membrane in proximity to a rectal wall overlying a prostate, and inflate the membrane. As the user slides their finger across the inside of the membrane, which is pressed against the rectal wall, the roller ring can rotate with respect to the fibers such that the fibers move relative to the measurement pattern. A controller can sense light reflected through the fibers from the reference pattern and calculate or estimate various attributes of the prostate based on the reflected light.
TISSUE ANALYSIS DEVICE AND TISSUE ANALYSIS METHOD FOR CHARACTERIZING PROSTATE CANCER WITH MICROWAVES
A device has been developed for diagnosing malignant prostate tissue to be utilized in the healthcare sector as a diagnostics equipment. The tissue identification device of the present invention includes a probe or resonator, a measurement tool including narrow band antennas, a classification unit, an inverse problem calculation unit, an S parameter measurement unit, and calculation unit (computer). The present device enables accurate diagnosis of prostate cancer by means of the above-mentioned elements it includes.
Differential atlas for cancer assessment
Methods and apparatus associated with producing a quantification of differences associated with biochemical recurrence (BcR) in a region of tissue demonstrating prostate cancer (PCa) are described. One example apparatus includes a set of logics, and a data store that stores a set of magnetic resonance (MR) images acquired from a population of subjects. The set of logics includes an image acquisition logic that acquires a diagnostic image of a region of tissue in a patient demonstrating PCa, a morphology logic that extracts a shape feature, a volume feature, or an intensity feature from the diagnostic image or from a member of the set of MR images, a differential atlas construction logic that constructs a statistical shape differential atlas from the set of MR images, and a quantification logic that produces a quantification of differences based on the shape feature, the volume feature, or the intensity feature, and the differential atlas.
MAGNETIC RESONANCE IMAGE PROCESSING METHOD
An image processing method comprising: receiving MRI data representing a scan of an organ of a patient, the MRI data including multiecho data for a plurality of pixels; for each of a plurality of pixels of the MRI data: fitting the multiecho data to a simulated decay curve; calculating a tissue index based on at least one parameter of the simulated decay curve; and comparing the tissue index to a threshold to determine a tissue type; wherein each pixel of the multiecho data consists of 16 or fewer echoes.