Clinical utility of viscoelastic testing in chronic liver disease: A systematic review

Table 2 Comparison of thromboelastography and rotational thrombelastometry parameters

	Measurement	TEG	ROTEM
Period of initial fibrin formation	Time (min) to reach an amplitude of 2 mm	Reaction time (R)	Clotting time
Clot kinetics	Time (min) for clot amplitude to increase from 2 mm to 20 mm	Kinetics time (K)	Clot formation time
Clot kinetics	Angle of tangent line from clot initiation to the slope of the developing curve	Alpha angle (α)	Alpha angle (α)
Maximum clot strength	Peak amplitude (mm)	Maximum amplitude	Maximum clot firmness
Clot stability/fibrinolysis	Percent reduction in curve at 30 and 60 minutes	Lysis 30 (LY30) and lysis 60 (LY60)	Lysis index 30 (LI 30)

TEG: Thromboelastography; ROTEM: Rotational thrombelastometry.