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Figure 1 | Thrombosis Journal

Figure 1

From: Application of basic and composite thrombelastography parameters in monitoring of the antithrombotic effect of the low molecular weight heparin dalteparin: an in vivo study

Figure 1

Correlation between Thrombodynamic Ratio (TDR) and AntiXa levels is demonstrated. The sensitivity and specificity of TDR for plasma levels of antiXa in the therapeutic range of 0.5 - 1.0 U/ml (horizontal dotted line) were calculated using cut off point of 10 (vertical dotted line). The dots in the left upper quadrant (A) represent TDR values less than 10 that correspond to therapeutic range of AntiXa. Dots in the right upper quadrant (B) are TDR values more than 10 that correspond to therapeutic range of AntiXa. Dots in the left lower quadrant (C) are TDR values less than 10 that correspond to non therapeutic AntiXa and dots in the right lower quadrant (D) represent TDR values more than 10 that correspond to non therapeutic AntiXa. The sensitivity was defined as number dots in A/A+C = 20/20+1 ≈ 0.95. The specificity was defined as number of dots in D/D+B = 11/11+3 ≈ 0.79.

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