Click on image to view larger version.

Figure 2 Use of Echocardiography Services (Both Imaging and "Add On" Doppler Services) by Site of Service

The frequencies with which these services were provided in various sites of service are shown for the years 1999 and 2004. IDTF = independent diagnostic testing facility; Inpatient = hospital inpatient; Office = physician’s office; OPD = hospital outpatient department.