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Table 1 Anatomical, imaging and computed parameters for DTI scans on the mouse, rabbit, and sheep hearts.

From: Quantitative comparison of myocardial fiber structure between mice, rabbit, and sheep using diffusion tensor cardiovascular magnetic resonance

  Mouse (n = 10) Rabbit (n = 6) Sheep (n = 5)
Anatomical parameters    
   Apex-to-base length 6.7 ± 0.5 mm 19.5 ± 1.9 mm 76.6 ± 6.8 mm
   LV wall thickness 1.5 ± 0.4 mm 3.9 ± 0.5 mm 12.5 ± 1.1 mm
Imaging parameters    
   Scanner field strength 9.4 T 7.1 T 2 T
   RF Coil diameter 1.4 cm 4 cm 10 cm
   FOV 12.8 mm3 3.2 cm3 10 cm3
   Pixel size 0.10 mm 0.25 mm 0.78 mm
   Diffusion pulse width 5 ms 5 ms 10 ms
   Diffusion pulse separation 7.5 ms 7.7 ms 15 ms
   Maximum gradient 50 G/cm 40 G/cm 18 G/cm
   Diffusion weighting b factor 1130 s/mm2 748 s/mm2 1175 s/mm2
Computed parameters    
   LV wall thickness in pixels 15.6 ± 3.6 15.7 ± 2.0 16.0 ± 1.4
   SNR of non-weighted scan 95 ± 15 102 ± 32 125 ± 34
  1. When applicable, the entries are mean ± SD.