Three Months Ended

Six Months Ended

June 30,

2012

2011

2012

2011

Net income attributable to RadNet, Inc.'s common stockholders

$

2,946

$

3,521

$

2,835

$

2,645

BASIC INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS

Weighted average number of common shares outstanding during the period

37,761,316

37,357,840

37,715,723

37,308,038

Basic income per share attributable to RadNet, Inc.'s common stockholders

$

0.08

$

0.09

$

0.08

$

0.07

DILUTED INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS

Weighted average number of common shares outstanding during the period

37,761,316

37,357,840

37,715,723

37,308,038

Add nonvested restricted stock subject only to service vesting

521,667

–

494,744

–

Add additional shares issuable upon exercise of stock options and warrants

1,147,734

2,462,323

1,005,165

2,068,920

Weighted average number of common shares used in calculating diluted income per share

39,430,717

39,820,163

39,215,632

39,376,958

Diluted income per share attributable to RadNet, Inc.'s common stockholders

$

0.07

$

0.09

$

0.07

$

0.07