Fig. 2.

Nomograms to predict SHH-pathway (A) and Group 4 (B) medulloblastoma based on selected MRI features. Score for individual MRI feature is obtained by dropping a perpendicular line from that feature onto the horizontal score line. Score of all individual features are summed to provide the total score. The total score (bottom line) is then used to read the predicted probability of that particular subgroup in the nomogram. For illustration, a total score of 22 in the SHH-pathway nomogram predicts a >90% probability of being SHH-pathway medulloblastoma. Similarly, a total score of 18 in Group 4 nomogram predicts >80% probability of being Group 4 medulloblastoma.