发明名称 |
Automatic detection and quantification of coronary and aortic calcium |
摘要 |
An automated method measures coronary calcium in a living subject using x-ray computed tomography (CT). The method acquires at least one CT image containing voxels representing x-ray attenuation of the subject which may or may not be calibrated. The method of analysis may or may not require operator interactions and includes analyzing the images in a computer to identify the boundaries of the heart. The method further includes identifying the approximate location of at least one coronary artery without operator interaction. The method further includes placing a region-of-interest (ROI) surrounding the artery location automatically. The method further includes analyzing the ROI to identify voxels above a threshold value. The method further includes determining the calcium content in mass units. |
申请公布号 |
US7558611(B2) |
申请公布日期 |
2009.07.07 |
申请号 |
US20020303663 |
申请日期 |
2002.11.23 |
申请人 |
IMAGE ANALYSIS, INC. |
发明人 |
ARNOLD BEN A.;REED JUDD E. |
分类号 |
A61B5/05;G06T7/00;G06T7/60 |
主分类号 |
A61B5/05 |
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