Table 2. Comparison of MRI Findings Before and After Platelet-Rich Plasma Injections.

	Pre-PRP Findings Reported by Radiologist	6 months Post-PRP Findings Reported by Radiologist	MRI Change Interpretation
Participant 1 (PRP group)	7x4 mm Supraspinatus Tear, 1x3 mm Infraspinatus Tear	3x3 mm Supraspinatus Tear, 1x3 mm Infraspinatus Tear	Better
Participant 2 (PRP group)	Tendinosis of Supraspinatus, Intact Infraspinatus	13 mm Supraspinatus tear, Fraying Infraspinatus	Worse
Participant 3 (Placebo)	Tendinosis of Supraspinatus and Infraspinatus	Lost to follow up	Lost to follow up
Participant 4 (PRP group)	9x2 mm Supraspinatus tear, Intact Infraspinatus	7x2 mm Supraspinatus tear, Intact Infraspinatus	Better
Participant 5 (PRP group)	Calcific Tendonitis Supraspinatus, Normal Infraspinatus	Normal Supraspinatus, Normal Infraspinatus	Better
Participant 6 (PRP group)	2x10 mm Supraspinatus tear, Normal Infraspinatus	Normal Supraspinatus, Minor Tendinosis of Infraspinatus	Better
Participant 7 (PRP group)	Delamination of Supraspinatus, Normal Infraspinatus	Improvement in Delamination	Better
Participant 8 (Placebo)	3 mm Supraspinatus tear, Normal Infraspinatus	11x2 mm Supraspinatus tear, Normal Infraspinatus	Worse
Participant 9 (PRP group)	8 mm Supraspinatus tear, Normal Infraspinatus	8 mm Supraspinatus tear, Questionably More Prominent Tendinosis of Infraspinatus	Equivocal