Patent application number | Description | Published |
20140064441 | METHOD OF RECONSTRUCTION FROM MULTI-ENERGY CT SCAN AND DEVICE THEREOF - A method for collecting multi-energy CT data is provided. A method of reconstruction from multi-energy CT scan is further provided, in which data collection is performed on the first-class object at voltage values of m sampling points of the first-class voltage varied periodically, to obtain n sets of multi-energy first-class scan data { | 03-06-2014 |
20140350953 | METHOD FOR SHARING MEDICAL IMAGE DATA BASED ON CLOUD PLATFORM, CLOUD PLATFORM AND SYSTEM - A method for sharing medical image data based on a cloud platform, a cloud platform and a system are disclosed. The cloud platform is connected to at least one medical imaging device. The method includes: receiving a medical image and/or scan data transmitted from the at least one medical imaging device; and storing, on the cloud platform, the medical image and/or scan data from the at least one medical imaging device. | 11-27-2014 |
20150023464 | CT PILOT IMAGE ACQUISITION METHOD AND CT DEVICE - A CT pilot image acquisition method and a CT device are provided. The method may include: performing a helical scan on a predetermined area to be scanned, so as to obtain scanning data; reconstructing a tomographic image based on the scanning data; performing, at a predetermined positioning angle, a parallel beam projection on the tomographic image by using a virtual parallel X-ray beam, so as to obtain projection data; and re-binning a CT pilot image at the predetermined positioning angle based on the projection data. Parallel beam projection is adopted to process the tomographic image, to obtain a pilot image without geometric distortions. The obtained pilot image can reflect an anatomical structure of human body accurately. | 01-22-2015 |
20150030221 | IMAGE COMPENSATION METHOD AND APPARATUS - A method and apparatus of image compensation are provided. The method may include: calculating an overlapping position between two adjacent scannings; obtaining two images at the overlapping position of the two adjacent scannings, and calculating mutual information of the two images by using a three dimensional non-rigid registration method; and acquiring a corresponding transformational matrix when the mutual information reaches a threshold, and compensating one of the two scans which needs to be compensated by using the transformational matrix. Images at the overlapping position of two neighboring scannings can be used to find a motion law at an identical z position of the two adjacent scannings and to obtain a corresponding match factor. Thus inconsistence of images caused by a patient's movement can be compensated. | 01-29-2015 |
20150071515 | IMAGE RECONSTRUCTION METHOD AND DEVICE FOR TILTED HELICAL SCAN - Image reconstruction method and device for tilted helical scan are provided. The method includes: acquiring data generated by the tilted helical scan; calculating a ray channel parameter and a slice number corresponding to each pixel position based on a geometric relationship that a ray of the tilted helical scan emitting from a ray source to a detector intersects with a pixel; and performing image reconstruction by using a three-dimensional helical back-projection method based on the acquired data, and the ray channel parameter and the slice number corresponding to each pixel position. With the method and device, there is no need to correct the raw data, which ensures the accuracy of the data, and the artifact is avoided, which ensures the accuracy of the reconstructed image. | 03-12-2015 |
20150085984 | SCANNING METHOD AND DEVICE WITH REDUCED SCANNING DOSAGE - A scanning method and device are provided. The method includes: determining values for a first scanning dosage and a second scanning dosage used in a scanning process based on a trigger condition which varies regularly and attenuation fluctuations of an object to be scanned, wherein the first scanning dosage is higher than the second scanning dosage, and at least one of the first scanning dosage and the second scanning dosage has an inconstant value; and scanning a target position with the determined values. In the present disclosure, a scanning dosage may be reduced and different image noises may be kept consistent. | 03-26-2015 |
20150094575 | METHOD AND DEVICE FOR TRACKING CONTRAST MEDIUM - A method and a device for tracking a contrast medium by scanning are provided. The method includes: obtaining a relationship between a contrast medium concentration and time according to concentration values of the contrast medium obtained by previous scannings; predicting a time interval from a current time point to a time point when a target concentration value reaches according to the relationship between the contrast medium concentration and time; and starting a routine examination at the end of the time interval. In the present disclosure, a routine examination may be performed in time. | 04-02-2015 |
20150104084 | SCANNING SYSTEM AND IMAGE DISPLAY METHOD - A scanning system and an image display method are provided, the method including: implementing a scanning process to obtain scanning data; converting the scanning data into image data; implementing an identification process and a segmentation process to the image data to obtain position and direction information of an interventional device; and calculating a first set of imaging parameters corresponding to a first image display mode based on the obtained position and direction information of the interventional device, and implementing real-time image display based on the first set of imaging parameters. Position and direction of interventional devices may be determined accurately. Further, multiple display modes are available, which may provide an accurate and full range image display. | 04-16-2015 |