EXHIBIT 23.1



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM



We consent to the incorporation by reference in the Registration Statement (Form
S-8) pertaining to the RadNet, Inc. 2006 Equity Incentive Plan, the Warrant To
Purchase Shares Of Common Stock between RadNet, inc. and Derek Bomar, dated
January 8, 2007, the Warrant To Purchase Shares Of Common Stock between Primedex
Health Systems, Inc. ("Primedex") and Derek Bomar, dated October 20, 2005, the
Warrant To Purchase Shares Of Common Stock between Primedex and June W. Chen,
dated March 14, 2006, the Warrant To Purchase Shares Of Common Stock between
Primedex and John V. Crues, dated June 7, 2005, the Warrant To Purchase Shares
Of Common Stock between Primedex and Lawrence L. Levitt, dated March 28, 2006,
the Warrant To Purchase Shares Of Common Stock between Primedex and Lawrence L.
Levitt, dated March 14, 2005, the Warrant To Purchase Shares Of Common Stock
between Primedex and Jeffrey L. Linden, dated April 28, 2006, the Warrant To
Purchase Shares Of Common Stock between Primedex and Judith G. Rose, dated June
7, 2005, the Warrant To Purchase Shares Of Common Stock between Primedex and
Mark Stolper, dated July 30, 2004, the Warrant To Purchase Shares Of Common
Stock between Primedex and Mark Stolper, dated July 30, 2004, the Warrant To
Purchase Shares Of Common Stock between Primedex and Mark Stolper, dated March
1, 2004, the Warrant To Purchase Shares Of Common Stock between Primedex and
Mark Stolper, dated July 11, 2006, the Warrant To Purchase Shares Of Common
Stock between Primedex and David L. Swartz, dated March 28, 2006, the Warrant To
Purchase Shares Of Common Stock between Primedex and David L. Schwartz, dated
July 8, 2005, and the Warrant To Purchase Shares Of Common Stock between
Primedex and David L. Schwartz, dated March 1, 2004, of our reports dated March
31, 2008, with respect to the consolidated financial statements and schedule of
RadNet, Inc., and the effectiveness of internal control over financial reporting
of RadNet, Inc., included in its Annual Report (Form 10-K) for the year ended
December 31, 2007, filed with the Securities and Exchange Commission.



/s/  ERNST & YOUNG LLP
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Los Angeles, California
August 21, 2008