Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Lane Curtis
2. Date of Event Requiring Statement (Month/Day/Year)
04/16/2007
3. Issuer Name and Ticker or Trading Symbol
ALLIANCE IMAGING INC /DE/ [AIQ]
(Last)
(First)
(Middle)
C/O MTS HEALTH INVESTORS II, L.P., 623 FIFTH AVENUE, 15TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10022
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 1,600,000
I
See Footnote (1)
Common Stock 320,000
I
See Footnote (2)
Common Stock 160,000
I
See Footnote (3)
Common Stock 22,749,005
I
See Footnote (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Lane Curtis
C/O MTS HEALTH INVESTORS II, L.P.
623 FIFTH AVENUE, 15TH FLOOR
NEW YORK, NY 10022
  X   X    

Signatures

/s/ Curtis Lane 04/25/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These securities are owned by MTS Health Investors II, L.P. ("MTS"). MTS Health Investors II GP Holdings, LLC is the Class A member of MTS Health Investors II GP, LLC ("MTS GP"), which is the general partner of MTS. Each may be deemed to beneficially own these shares because they have discretionary authority and control over all of the assets of MTS pursuant to a partnership agreement for MTS. These securities may be deemed beneficially owned by Mr. Lane by virtue of being a managing member of MTS Health Investors, LLC. Mr. Lane disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed to be an admission that Mr. Lane has beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purposes.
(2) These securities are owned by Alliance-MTS Co-Investors I, LLC ("MTS I LLC"). These securities may be deemed beneficially owned by Mr. Lane by virtue of being a managing member of MTS Health Investors, LLC, an affiliate of MTS GP. MTS GP is managing member of MTS I LLC and may be deemed to beneficially own the shares held by MTS I LLC because MTS has discretionary authority and control over all of the assets of MTS I LLC pursuant to the Limited Liability Company Agreement. Mr. Lane disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed to be an admission that Mr. Lane has beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purposes.
(3) These securities are owned by Alliance - MTS Co-Investors II, LLC ("MTS II LLC"). These securities may be deemed beneficially owned by Mr. Lane by virtue of being a managing member of MTS Health Investors, LLC, an affiliate of MTS GP. MTS GP is managing member of MTS II LLC and may be deemed to beneficially own the shares held by MTS II LLC because MTS has discretionary authority and control over all of the assets of MTS II LLC pursuant to the Limited Liability Company Agreement. Mr. Lane disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed to be an admission that Mr. Lane has beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purposes.
(4) These securities are owned by OCM Principal Opportunities Fund IV, L.P. and Alliance-Oaktree Co-Investors, LLC. OCM Principal Opportunities Fund IV, L.P., Alliance-Oaktree Co-Investors, LLC, MTS, MTS I LLC and MTS II LLC are parties to a Stockholders? Agreement, dated April 16, 2007, which provides for certain terms regarding voting and disposal of the shares of the Issuer owned by the parties. Because of this agreement, these securities may be considered beneficially owned by MTS, MTS I LLC and MTS II LLC as members of a "group" as defined under Rule 13d-5(b)(1) of the Securities Exchange Act of 1934. Mr. Lane disclaims beneficial ownership of the securities reported herein, and the inclusion of these securities in this report shall not be deemed to be an admission that Mr. Lane has beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purposes.

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