7T MRI Versus 3T MRI of the Brain in Professional Fighters and Patients With Head Trauma.

7–10 In regard to CMHs, some studies have found that these hemorrhages are more common in fighters than in NHCs, but this trend did not reach statistical significance. 9 , 11 , 12 However, a more recent study did demonstrate a significantly increased incidence of CMHs in adolescent football players. 13 In recent years, 7T MRI has been increasingly used to achieve greater accuracy in neurological diagnoses, 14 and this field strength was approved by the U.S.

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