SuperSonic Imagine Aixplorer MultiWave Guía De Usuario De Fusión/Navegación página 100

Accuracy
2nd Modality Image Display
The system accuracy concerning the matching between the ultrasound
image and the 2nd modality image depends highly on the registration
process and the condition of the patient compared to the situation when
the 2nd modality (i.e. the CT scan) has been acquired. This also includes
the breathing of the patient. Thus, please be aware that the current patient
breath state should be comparable to the one during the 2nd modality
acquisition.
WARNING
Minimize patient motion or use omniTRAX.
However, from the technical point of view an "overlapping" accuracy of
at least 5mm can be achieved under the presumption that the registration
has been done with an overall error better than 5mm.
Length Measurement
In the ultrasound image: 5% error, or better.
In the 2nd modality image: 5%-10%, or better. Please note that this value
depends on the quality of the 2nd modality dataset.
94 Aixplorer® Fusion/Navigation User's Guide