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. Author manuscript; available in PMC: 2010 Jun 12.
Published in final edited form as: Int J Cardiol. 2008 Jul 1;135(1):43–52. doi: 10.1016/j.ijcard.2008.03.087

Table 2.

Summary of the Geometric Parameters: Median (M), Interquartile Range (Q1 to Q3), and Coefficient of Quartile Variation (CQV)

Parameter Statistics LAD
 RCA
Proximal Middle Distal Proximal Middle Distal
MeC M(cm−1) 0.52 0.50 0.57 0.66 0.58 0.62
Q1(cm−1) 0.37 0.39 0.44 0.55 0.42 0.45
Q3(cm−1) 0.69 0.64 0.84 0.83 0.78 0.87
CQV 29.9% 24.7% 31.5% 20.6% 29.9% 31.4%
MaC M(cm−1) 0.87 1.10 1.59 1.27 1.09 1.51
Q1(cm−1) 0.66 0.67 1.01 1.06 0.77 1.18
Q3(cm−1) 1.09 1.39 2.22 1.67 1.53 2.00
CQV 24.4% 34.7% 37.5% 22.4% 33.0% 25.8%
SDC M(cm−1) 0.23 0.29 0.37 0.36 0.27 0.38
Q1(cm−1) 0.13 0.20 0.26 0.27 0.21 0.32
Q3(cm−1) 0.33 0.38 0.52 0.43 0.42 0.51
CQV 43.0% 30.8% 34.1% 23.1% 34.5% 21.9%
MeT M(cm−1) 3.31 3.36 3.82 2.46 2.03 2.91
Q1(cm−1) 2.50 3.07 3.30 1.95 1.66 2.31
Q3(cm−1) 4.37 5.21 4.41 3.40 3.25 3.69
CQV 27.2% 25.9% 14.3% 27.2% 32.5% 23.1%
MaT M(cm−1) 10.44 11.23 26.41 10.26 7.27 15.25
Q1(cm−1) 6.42 7.84 14.42 5.68 5.51 9.87
Q3(cm−1) 16.91 29.40 40.88 15.97 11.88 28.72
CQV 45.0% 57.9% 47.8% 47.5% 36.6% 48.8%
SDT M(cm−1) 3.70 3.47 5.11 2.77 2.18 3.57
Q1(cm−1) 2.05 2.51 3.31 1.63 1.65 2.35
Q3(cm−1) 5.86 6.56 7.07 4.46 3.48 6.15
CQV 48.2% 44.7% 36.2% 46.5% 35.6% 44.7%
TTS M 0.06 0.05 0.15 0.16 0.06 0.17
Q1 0.03 0.03 0.10 0.09 0.03 0.08
Q3 0.08 0.08 0.18 0.19 0.11 0.25
CQV 45.1% 46.9% 30.5% 34.0% 59.7% 50.1%