| Patent application number | Description | Published |
|---|
| 20080304728 | Method and system for performing high temporal resolution bolus detection using CT image projection data - A method of evaluating changes in contrast of an image using a diagnostic imaging system is provided. The method provides acquiring raw image data of an organ or tissue, calculating a baseline of data based on the raw image data acquired before arrival of an agent, and determining changes in a signal intensity of the agent based on changes in the raw image data compared to the baseline. The agent may be an imaging agent, a contrast agent, a biomedical agent, a needle, a catheter, a biomedical device, and the like. | 12-11-2008 |
| 20090129539 | COMPUTED TOMOGRAPHY METHOD AND SYSTEM - A method of diagnostic imaging is disclosed herein. The method includes acquiring CT projection data at a first x-ray energy level and a second x-ray energy level. The method includes reconstructing a first image pair using a basis material decomposition algorithm and the CT projection data. The method includes displaying a first image from the first image pair. The method includes transforming the first image pair into a second image using image data from the first image pair. The method also includes displaying a second image. A CT system is also disclosed. | 05-21-2009 |
| 20090232373 | METHODS AND APPARATUS FOR REDUCING NOISE IN IMAGES - A method for enhancing images of an object includes registering a fixed image with cine images of the same object. Next, the fixed image and the cine images are transformed into frequency space representations thereof. A central portion of the frequency space cine images are merged with a peripheral portion of frequency space fixed image using a defined normalized response curve or a predefined normalized response curve (or both) to form a merged image. Finally, the method includes inversely transforming the merged image into enhanced cine images of the object. | 09-17-2009 |
| 20090310740 | COMPUTED TOMOGRAPHY METHOD AND SYSTEM - A method of computed tomography is disclosed herein. The method includes acquiring a first plurality of views during a first helical pass and acquiring a second plurality of views during a second helical pass. The method also includes generating an image based on both the first plurality of views and the second plurality of views. | 12-17-2009 |
| 20100310040 | METHOD OF CT PERFUSION IMAGING AND APPARATUS FOR IMPLEMENTING SAME - A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a subject fore and aft along the axial direction and over a second length of the CT system, the second length greater than the first length, energize an x-ray source to emit x-rays toward the subject while the subject is being repeatedly positioned, and obtain non-uniform projection data of the subject from the scintillator array, the non-uniform projection data comprising the x-rays received from the x-ray source while the subject is repeatedly positioned. The CT system includes a computer programmed to reconstruct a plurality of temporally non-uniformly spaced images from the non-uniform projection data, interpolate the plurality of non-uniform images to form a plurality of temporally uniform images, and apply a perfusion map generation process to the plurality of temporally uniform images. | 12-09-2010 |
