EXHIBIT 5.1

                                  June 11, 2007

RadNet, Inc.
1510 Cotner Avenue
Los Angeles, CA 90025

      Re:   RadNet, Inc.

Gentlemen:

      This opinion is furnished in connection with the registration, pursuant to
a Registration Statement on Form S-8 under the Securities Act of 1933, as
amended (the "Act"), to be filed with the Securities and Exchange Commission on
or about June 1, 2007 (the "Registration Statement"), of 1,000,000 shares (the
"Shares") of the Common Stock, par value $.0001 per share (the "Common Stock"),
of RadNet, Inc., a New York corporation (the "Company"), which will be issued
pursuant to the Company's 2006 Equity Incentive Plan (the "Plan").

      I have acted as counsel to the Company in connection with the foregoing
registration of the Shares. I have examined and relied upon the originals or
copies, certified or otherwise identified to my satisfaction, of such records,
instruments, certificates, memoranda and other documents as I have deemed
necessary or advisable for purposes of this opinion and have assumed, without
independent inquiry, the accuracy of those documents. In that examination, I
have assumed the genuineness of all signatures, the conformity to the originals
of all documents reviewed by me or by attorneys in my office as copies, the
authenticity and completeness of all original documents reviewed by me or by
attorneys in my office in original or copy form and the legal competence of each
individual executing such documents. I have further assumed that all options and
shares granted or to be granted pursuant to the Plan were or will be validly
granted in accordance with the terms of the Plan and that all Shares to be
issued upon exercise of such options will be issued in accordance with such
options and the Plan.

      Based upon the foregoing, I am of the opinion that upon the issuance and
delivery of the Shares in accordance with the terms of the Plan, the Shares will
be legally issued, fully paid and non-assessable shares of the Company's Common
Stock.

      This opinion is limited solely to the New York General Corporation Law.

      I consent to the filing of a copy of this opinion as an exhibit to the
Registration Statement.

                                                    Very truly yours,

                                                    /s/ Jeffrey L. Linden

                                                    Jeffrey L. Linden