Measurements and Analysis
8-82 Vivid S70 / S60 – User Manual
BC092760-1EN
01
Advanced vascular measurements
and analysis
Intima-Media Thickness
The Intima-Media Thickness (IMT) is calculated based on
automatic contour detection of the Intima and Media layers on a
user-defined search region along the vessel wall. Multiple IMT
measurements are made between pairs of intima and adventitia
points along the wall (Figure 8-47). IMT can be measured both
on the posterior and the anterior walls of the vessel. IMT should
be done on 2D mode images, not on Color mode images.
The IMT measurement is available with linear probes only.
NOTE: Due to the physical properties of ultrasound imaging, the
posterior IMT measurement is generally more accurate than the
anterior IMT measurement.
The following parameters are calculated:
• Average IMT
• Maximum IMT
• Minimum IMT
• Standard deviation of IMT measurements
• Number of successful IMT measurements