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Table 3 MRI ImageJ values

From: Symptomatic anterior cruciate ligament tears treated with percutaneous injection of autologous bone marrow concentrate and platelet products: a non-controlled registry study

Variable Mean SD Median Lower quartile Upper quartile Minimum Maximum p value
Mean gray value − 15.5 17.6 − 13.2 − 24.6 − 3.9 − 53.1 14.4 0.0015
Mode gray value − 17.6 23.8 − 15.0 − 33.5 − 5.25 − 55.0 35.0 0.0025
Median gray value − 15.6 19.0 − 13.5 − 26.5 − 0.5 − 54.0 19.0 0.0018
Skewness 0.16 1.0 0.2 − 0.4 0.8 − 2.4 2.3 0.3720
Raw integrated density − 170,000 179,000 − 135,000 − 273,000 − 44,700 − 5,140,000 171,000 0.0003
  1. p-values note significant differences in values from pre- to post-treatment. A negative value indicates a darker gray value which suggests more ligament healing