Table 1 Comparisons of various parameters between TEG® and ROTEM®
From: Monitoring the coagulation status of trauma patients with viscoelastic devices
TEG | ROTEM | Interpretation of the finding |
|---|---|---|
R (reaction time) | CT (clotting time) | Time to initiation of clot formation |
A (amplitude) | Viscoelasticity of the blood clot. Reflecting the function and counts of platelet and fibrinogen about thrombogenicity of fibrin clot. | |
K (clot kinetics) | CFT (clot formation time) | Time from starting of blood clotting to the clot amplitude reaches at 20Â mm. Reflecting the speed of clot polymerization. |
α | α (alpha angle) | Rate of increase of clot amplitude. Reflecting the speed of fibrin clot. |
MA (maximum amplitude) | MCF (maximum clot firmness) | Maximum of amplitude. Reflecting the clot strength. |
TMA (time to maximum amplitude) | Â | Time to maximum amplitude. Reflecting the clot formation time. |
LY | LI (lysis index) | Rate of decrease of clot amplitude. Reflecting the degree of fibrinolytic activity. |
CLT (clot lysis time) | Â | Time from maximum to minimum of clot amplitude. Reflecting the degree of fibrinolysis. |
ML (maximum lysis) | Maximum rate of decrease of clot amplitude to MCF. |