Table 1. The range, mean and standard deviation of the distance of coronary sinus/great cardiac vein from mitral valve annulus at point 1–6.

Point	Range (mm)	Mean±standard deviation (mm)
1	8.04-10.56	9.39±0.52
2	9.78-11.68	10.78±0.52
3	8.36-10.98	9.64±0.48
4	8.28-10.90	9.27±0.57
5	6.03-10.56	7.21±1.08
6	5.27-10.90	6.39±1.30