Helene C. Houle,Liexiang Fan,Matthew Holladay,King Yuen Wong,Wayne J. Gueck
申请号：
US11147098
公开号：
US08211024B2
申请日:
2005.06.06
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Flow information (e.g., velocity and acceleration) and/or pressure gradient information are determined with ultrasound. Both velocity and acceleration are simultaneously estimated using a model and least squares analysis. Anti-aliasing of velocity information may be provided using the model and least squares analysis. Pressure gradient is calculated from velocity information automatically, more likely providing consistent measurements. Consistency may be increased further by automatically positioning a region of interest in either a multidimensional spatial image or a spatial-temporal image. A parametric image of pressure gradient for each spatial location within the image is generated as well as a delta pressure curve. Any single one or combinations of two or more of the features described above may be used.
