| 摘要 |
In a sequence of medical image data showing tumors and blood vessels, a plas ma signal is optimized to avoid flow artifacts by receiving a user input of a blood region and using the user input to seed an automated search. Each voxe l is scored by time point of maximum intake, slope at maximum intake, peak val ue and conformance to a gamma variate curve, and the voxels with the highest scores are included in the ideal plasma region of interest. Uptake curves fo r both tumors and plasma are determined and used to estimate a volume transfer constant. |
