Table 1 Classification of roadmap and overlay quality
From: Dynamic coronary roadmapping during percutaneous coronary intervention: a feasibility study
Roadmap quality | ||
Fit for use | Good | Roadmap shows all relevant vessels, no clutter from background structures |
Acceptable | Roadmap shows some missing parts of the vessel but still gives an impression on the course of the vessels; some clutter in the background but not hindering the image | |
Insufficient | Suboptimal | Roadmap does not show relevant parts of the vessel, too much clutter in the background |
Overlay quality | ||
Fit for use | Good | All or almost all frames are correctly registered, always clear in which vessel the device is being navigated |
Acceptable | Some frames are not correctly registered but it is always clear in which vessel the device is being navigated | |
Insufficient | Suboptimal | Registration is not correct, not clear in which vessel the device is being navigated |