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Table 1 Pericardial effusion size

From: Real-time cardiovascular magnetic resonance subxiphoid pericardial access and pericardiocentesis using off-the-shelf devices in swine

Effusion size (volume infused) Drained volume ml Pericardial pressure mmHg Maximum dimension mm coronal Maximum dimension mm sagittal Maximum dimension mm axial
Small (50 ml) 48.4 ± 3.0 3.4 ± 1.2 9.5 ± 2.4 9.4 ± 2.1 8.6 ± 0.7
Moderate (100 ml) 98.3 ± 3.7 6.1 ± 1.1 16.7 ± 3.5 16.6 ± 3.3 12.4 ± 1.6
Large (150 ml) 146.3 ± 4.8 4.8 ± 0.7 20.8 ± 3.8 22.1 ± 3.6 15.9 ± 2.2
  1. Volumes are expressed in milliliters (ml). The units for pressure are millimeter of Mercury (mmHg). Maximum dimensions are represented in millimeters. n = 12 per group.