44 results about "Diagnostic quality" patented technology

An antenna module, that is compatible with a magnetic resonance imaging scanner for the purpose of diagnostic quality imaging, is adapted to be implanted inside an animal. The antenna module comprises an electrically non-conducting, biocompatible, and electromagnetically transparent enclosure with inductive antenna wires looping around an inside surface. An electronic module is enclosed in an electromagnetic shield inside the enclosure to minimize the electromagnetic interference from the magnetic resonance imaging scanner.

Systems and methods are provided for processing a medical image to automatically identify the anatomy and view (or pose) from the medical image and automatically assess the diagnostic quality of the medical image. In one aspect a method for automated decision support for medical imaging includes obtaining image data, extracting feature data from the image data, and automatically performing anatomy identification, view identification and/or determining a diagnostic quality of the image data, using the extracted feature data.

A system and method of medical imaging is designed to reduce a patient's X-ray exposure during scanning. The system automatically generates a default noise index from a received set of scan parameter values that specifies a desired tube current of an X-ray source to use during the scanning of a patient. The default noise index can then be overridden to select a preferred noise index based upon a desired diagnostic quality for a particular volume of interest (VOI) and a diagnostic objective.

For training data pairs comprising training text (a radiological report) and training images (radiological images associated with the radiological report), a first encoder network determines word embeddings for the training text. A concept is generated from the operation of layers of the first encoder network, which is regularized by a first loss between the generated concept and a labeled concept for the training text. A second encoder network determines features for the training image. A heatmap is generated from the operation of layers of the second encoder network, which is regularized by a second loss between the generated heatmap and a labeled heatmap for the training image. A categorical cross entropy loss is calculated between a diagnostic quality category (classified by an error encoder) and a labeled diagnostic quality category for the training data pair. A total loss function comprising the first, second, and categorical cross entropy losses is minimized.

A method for correcting Positron Emission Tomography (PET) data includes adjusting a tube current generated by the CT imaging system to a second tube current value that is less than a first tube current value used to generate diagnostic quality CT images, and imaging the patient with the CT imaging system set at the second tube current value. The method also includes generating a plurality of computed tomography (CT) projection data from the CT imaging system and preprocessing the CT projection data to generate preprocessed CT projection data. The method further includes filtering the preprocessed CT projection data to reduce electronic noise to generate filtered CT projection data, and performing a minus logarithmic operation on the filtered CT projection data to generate the corrected PET data.

This multipurpose, modular system provides diagnostic-quality, wireless, multichannel monitoring in diverse settings, including interventional procedures guided by X-ray and MRI, with variable electromagnetic interference (EMI) and eliminates the need for multiple detachments/reattachments of patient cables when the patient is moved from one room/procedure to another. The system includes: 1) multiple filterbanks (filtering procedures) for recording both diagnostic-quality (broad-band) signals in the absence of EMI and narrow-band signals in the presence of EMI, with subsequent reconstruction of diagnostic-quality signals from the narrow-band signals; 2) filtering of EMI, using a priori and adaptive criteria about differences between the EMI and physiological signals' characteristics; 3) filtering of the magneto-hydrodynamic effect, using physiological measurements at different distances from the magnet (i.e., at different strengths of magnetic field) and changes in blood flow and blood pressure; and 4) multiple wireless transmitters for increasing reliability and speed (throughput) of the wireless data transmission.

The invention provides a system for deducing scanning sequence phase on the basis of DICOM image information, wherein the system includes an image information management module used for transmitting the DICOM image of a patient to an image data extraction module; the image data extraction module can extract a sequence, containing a phase data, in the DICOM image sequence on the basis of inspectionarea data, spatial position data and scanning time data, and then divide the sequence into N DICOM image groups, the images in each of the DICOM image group comprising the same phase data. An image data naming module sets the name of each DICOM image group according to the clinical meanings of the phase on the basis of the sequences of the inspection area data, spatial position data and scanningtime data; a data sending module searches a DICOM image group matched with an AI diagnosis model on the basis of the inspection number of the patient and the name of the DICOM image group and sends the DICOM image group to the AI diagnosis model. The invention further provides a method for deducing scanning sequence phase on the basis of DICOM image information. The system and method are used forimproving diagnosis quality and increasing report writing efficiency.

The present invention provides a method for improving diagnostic quality in echocardiography, especially for patients having an elevated heart rate.

Methods and systems are provided for medical imaging systems. In one embodiment, a method for a medical imaging system comprises acquiring emission data during a positron emission tomography (PET) scan of a patient, reconstructing a series of live PET images while acquiring the emission data, and tracking motion of the patient during the acquiring based on the series of live PET images. In this way, patient motion during the scan may be identified and compensated for via scan acquisition and/or data processing adjustments, thereby producing a diagnostic PET image with reduced motion artifacts and increased diagnostic quality.

Methods and systems are provided for medical imaging systems. In one embodiment, a method for a medical imaging system comprises acquiring emission data during a positron emission tomography (PET) scan of a patient, reconstructing a series of live PET images while acquiring the emission data, tracking motion of the patient during the acquiring by determining a per-voxel variation for selected voxels in a current live PET image of the series of live PET images, and outputting an indication of patient motion based on the per-voxel variation for the selected voxels in each live PET image. In this way, patient motion during the scan may be identified and compensated for via scan acquisition and/or data processing adjustments, thereby producing a diagnostic PET image with reduced motion artifacts and increased diagnostic quality.

Methods and systems are provided for de-noising medical images using deep neural networks. In one embodiment, a method comprises receiving a medical image acquired by an imaging system, the medical image comprising colored noise; mapping the medical image to a de-noised medical image using a trained convolutional neural network (CNN); and displaying the de-noised medical image via a display device. The deep neural network may thereby reduce colored noise in the acquired noisy medical image, increasing a clarity and diagnostic quality of the image.

The present invention discloses an endoscopic vagina examination device. The endoscopic vagina examination device comprises a hard tube endoscope, a control host, a monitor and a limiting vagina expander matched with the hard tube endoscope, the control host comprises an image processing system and a light source system, the image processing system and the light source system are both connected with the hard tube endoscope, and an upper end of the control host is provided with an operation panel. The endoscopic vagina examination device solves a problem that the prior colposcopes have more observation blind spots, realizes omnibearing observation, realizes essential breakthrough compared with the colposcopy examination products in the prior art, facilitates operation of medical staff, cangreatly improve examination efficiency, improves an examination effect, helps the medical staff quickly and safely obtain fully prepared examination data, effectively shortens examination time and promotes comfort levels of examinees, built-in parts are all passive products, and the endoscopic vagina examination device avoids cross infection that probably produces, strengthens examination safety simultaneously and promotes diagnostic quality comprehensively.

The invention relates to a multi-path b-ultrasonic image diagnostic system with an intelligent image interpreting device. The system comprises image analog signals, video and audio alerting signals which need to be corrected and alerting signals. The image analog signals are obtained and sent by 1-N path ultrasonic detection sensors to different examined operating parts of a human body, the image analog signals are processed by b-ultrasonic image imaging devices corresponding to the 1-N path to generate recognizable video and audio signals, the recognizable video and audio signals are sent to b-ultrasonic image imaging long-range displays corresponding to the 1-N path to alert respectively, meanwhile, the recognizable video and audio signals are sent to the intelligent image interpreting device to be processed and fed back to the b-ultrasonic image imaging devices corresponding to the 1-N path to generate the video and audio alerting signals which correspond to the 1-N path and need to be corrected, finally, through b-ultrasonic image imaging long-range and short-range displays corresponding to the 1-N path, the alerting signals correcting the images of the examined operating parts movably detected by the ultrasonic detection sensors are generated. The system has the advantages that the operability of a usage method is high, the misdiagnosis rate of the multi-path b-ultrasonic image diagnostic system is low, and the quality and efficiency of diagnoses are high.