发明名称 |
Method for determining a temporal profile of a probability distribution with local three-dimensional resolution for the presence of a substance in a vascular system |
摘要 |
The invention relates to a method for determining a probability distribution with local three-dimensional resolution for a substance in a vascular system. An acquisition time is assigned to a group of x-ray images showing a presence distribution with local 2D resolution for a substance in the vascular system at the acquisition time. A first preliminary presence probability distribution is determined using the x-ray images assigned to the acquisition time and a volume data set of the vascular system. A second preliminary presence probability distribution is determined using the presence probability distribution for the preceding acquisition time and a migration probability distribution with the substance migrating from first vascular locations to second vascular locations. A high individual probability to vascular locations is assigned if both preliminary presence probability distributions have a high probability value for the respective vascular location. Otherwise a lower and greater than zero individual probability is assigned.
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申请公布号 |
US2008243435(A1) |
申请公布日期 |
2008.10.02 |
申请号 |
US20080079609 |
申请日期 |
2008.03.27 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
DEINZER FRANK;PLATZER ESTHER-SABRINA |
分类号 |
G06T7/40 |
主分类号 |
G06T7/40 |
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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