In-office magnetic resonance imaging (MRI) equipment ownership and MRI volume among medicare patients in orthopedic practices

Table 1 Survey practices and sample physicians

A: Number of survey practices and physicians by cohort
MRI acquisition year	Number of practices	Practices with >50 % physician ID match	Number of physicians
Comparison
Without MRI thru 2010	442	265	1790
2011-2013	23	19	220
Total	465	284	2010
Treatment
2007	30	21	276
2008	15	12	206
2009	18	16	283
Total	63	49	765

ISSN: 2191-1991