Capital Lease Arrangements

12 Months Ended

Dec. 31, 2011

Capital Lease Arrangements

Capital Lease Arrangements

(4) Capital Lease Arrangements

        The Company leases certain equipment under agreements, which are classified as capital leases. These leases have bargain purchase options at the end of the original lease terms. Capital leased assets included in property and equipment are as follows:

(in thousands):	December 31, 2011			December 31, 2010
Medical equipment	$	44,495		$	38,309
Software		812			—
Less: accumulated amortization		(12,854	)		(10,917	)
	$	32,453		$	27,392

        Amortization expense relating to capital leased equipment was approximately $4.4 million, $4.1 million, and $4.4 million for the years ended December 31, 2011, 2010 and 2009, respectively, and is included in depreciation expense in the consolidated statements of comprehensive loss.