发明名称 |
System and method for generating composite subtraction images for magnetic resonance imaging |
摘要 |
In time-resolved contrast-enhanced magnetic resonance angiography, a measure quantifying image quality provides a basis for generating a linear filtered composite image by facilitating selection of a mask and an arterial phase image for subtraction. Filtering of individual pixels of a temporal series of images provides enhanced contrast in a single image by allowing the temporal behavior of the pixel intensity to denote representation as an artery, vein or background tissue. Motion artifacts are suppressed by re-registering sequential images, adjusting weighting before averaging and subtraction and filtering the Fourier data to eliminate data corrupted by motion or other phenomena.
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申请公布号 |
US7545967(B1) |
申请公布日期 |
2009.06.09 |
申请号 |
US20030664425 |
申请日期 |
2003.09.17 |
申请人 |
CORNELL RESEARCH FOUNDATION INC. |
发明人 |
PRINCE MARTIN R.;ZABIH RAMIN;WANG YI;WATTS RICHARD;KIM JUNHWAN;BEZANSON JEFF;ERSOY HALE |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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