It is recommended to briefly inspect the TACs. They are shown in the REST Input or STRESS Input tabs on the Kinetic Modeling page.
The following should be checked:
Note that for a closer inspection of the curve shapes you can zoom into the curve display by dragging a rectangle using the left mouse button. An alternative is to click with the right mouse button into the curve area and then select the View in Separate Window entry of the context menu.
If the data is not convincing, please return to the VOI outlining step and correct. A problem occasionally seen and difficult to correct is, that a subject moved, so that in the early frames the VOIs are not aligned with the myocardial position throughout the whole acquisition.