Article Figures & Data
Figures
- FIG 1.
SWI and corresponding phase images. A and B, Subject 10. C and D, Subject 14. E and F, Subject 46. Subject 10 is an 18-year-old, male defensive lineman. Subject 14 is a 17-year-old, male defensive end. Subject 46 is an 18-year-old, male quarterback. Microhemorrhages are indicated by a white arrow. A, SWI hypointensity in the choroid plexus of the left lateral ventricle. B, Corresponding hyperintensity in the choroid plexus of the left lateral ventricle on phase imaging, verifying microhemorrhage. C, SWI hypointensity in the periventricular white matter of the left parietal lobe. D, Corresponding hyperintensity in the periventricular white matter of the left parietal lobe on phase imaging, verifying microhemorrhage. E, SWI hypointensity in the cerebellar gray/white matter. F, Corresponding hyperintensity in the cerebellar gray/white matter on phase imaging, verifying microhemorrhage.
- FIG 2.
Developed microhemorrhages in 2 football players. Dashed circles identify the ROI on each image. A and B, Subject 72. C and D, Subject 75. Subject 72 is a 17-year-old, male quarterback. Subject 75 is a 16-year-old, male cornerback. A, Preseason SWI with no hypointensity in the right occipital lobe white matter. B, Postseason SWI with hypointensity in the right occipital lobe white matter. C, Preseason SWI with no hypointensity in the right frontal lobe white matter. D, Preseason SWI with hypointensity in the right frontal lobe white matter.
Tables
Contingency table describing relationship between prior concussion diagnosis and microhemorrhage status in adolescent football players
Microhemorrhage Found No Microhemorrhage Found Total Prior concussion 3 9 12 No prior concussion 9 57 66 Total 12 66 78
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