| APOLLO MEDICAL IMAGING TECHNOLOGY PTY LTD Patent applications |
| Patent application number | Title | Published |
|---|
| 20110229003 | METHOD AND SYSTEM FOR MAPPING TISSUE STATUS OF ACUTE STROKE - The current invention provides a method of identifying a ischemic lesion. The method includes loading perfusion imaging data into an electronic memory element and deriving perfusion maps from the perfusion imaging data, where the perfusion maps include a cerebral blood volume (CBV) map and an arterial delay time (DT) map, which utilize arterial delay and dispersion effects. Ischemic pixels are determined from the perfusion imaging data, where the DT is greater than a predetermined first threshold value and the CBV is below a second threshold value and the infarct portion of the ischemic lesion is determined, where DT is greater than a predetermined third threshold value and/or the CBV is below a forth threshold value. A cluster analysis is applied to all of the determined ischemic lesion and infarct pixels and the penumbra is then determined, where mismatch regions between the ischemic lesion and the infarct core define the penumbra. | 09-22-2011 |
| 20100128941 | Method and System of Motion Artefact Compensation in a Subject - A method of compensating for motion artefact of a portion of a subject, wherein signal intensity data representing movement of the portion of the subject is recorded and plotted on a display means. The method includes selecting a region of interest (ROI) covering an edge of the moving portion, calculating and plotting data points representing the average signal intensity of the selected ROI at specific time instances, producing a smoothed curve representing the mean of the plotted data points. The method further includes measuring the difference between the plotted data points and the smoothed curve at particular time instances to produce a difference curve, detecting a set of critical points on the difference curve, and interpolating the detected set of critical points to form a curve of equal time intervals for subsequent processing. | 05-27-2010 |
