EXHIBIT 5.1

Exhibit 5.1

November 2, 2004

InSight Health Services Corp.
26250 Enterprise Court
Suite 100
Lake Forest, California 92630

Ladies and Gentlemen:

We are acting as counsel to InSight Health Services Corp., a Delaware corporation (the “Company”) and the parties identified on Schedule A hereto (the “Guarantors”) in connection with the registration under the Securities Act of 1933, as amended (the “Securities Act”), of up to $25 million of the Company’s 9 7/8% Senior Subordinated Notes due 2011 (the “Exchange Notes”) to be offered in exchange for its outstanding 9 7/8% Senior Subordinated Notes due 2011 (the “Original Notes”) that were issued on March 8, 2004 pursuant to the Indenture, dated as of October 30, 2001 (the “Indenture”), among the Company, the Guarantors and U.S. Bank Trust National Association, as trustee (the “Trustee”), as supplemented on February 25, 2002, April 12, 2003, March 8, 2004 and June 8, 2004. This opinion is being delivered to you for filing as an exhibit to the Registration Statement on Form S-4 (the “Registration Statement”) being filed by the Company and the Guarantors with the Securities and Exchange Commission (the “Commission”) on the date hereof.

In connection herewith, we have examined the (i) Registration Statement, (ii) Indenture, (iii) Original Notes, (iv) Exchange Notes (and the related Guarantees of the Guarantors (the “Guarantees”)) (the Indenture, the Exchange Notes and the Guarantees are collectively referred to herein as the “Documents”) and (v) such corporate records, certificates and other documents, and such questions of law, as we have considered necessary or appropriate for the purposes of this opinion.

On the basis of the foregoing and subject to the qualifications and assumptions set forth herein, we are of the opinion that:

1. When (A) the Registration Statement has been declared effective, and (B) the Exchange Notes have been duly executed by the Company and authenticated by the Trustee in accordance with the terms of the Indenture and duly issued and delivered against exchange of the Original Notes as described in the Registration Statement, the Exchange Notes will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, subject to applicable bankruptcy, insolvency, fraudulent conveyance, reorganization and similar laws affecting creditors’ rights generally and general principles of equity (regardless of whether such principles are considered in a proceeding in equity or at law).

2. When (A) the Registration Statement has been declared effective, and (B) the Exchange Notes have been duly executed by the Company and authenticated by the Trustee in accordance with the terms of the Indenture and duly issued and delivered against exchange of the Original Notes as described in the Registration Statement, the Guarantee of the Exchange Notes by each of the Guarantors will constitute a valid and binding obligation of each Guarantor, enforceable against each Guarantor in accordance with its terms, subject to applicable bankruptcy, insolvency, fraudulent conveyance, reorganization and similar laws affecting creditors’ rights generally and general principles of equity (regardless of whether such principles are considered in a proceeding in equity or at law).

3. Assuming that the Indenture has been duly authorized, executed and delivered by the Trustee, the Indenture constitutes a valid and binding obligation of the Company and the Guarantors, enforceable against the Company and the Guarantors in accordance with its terms, subject to applicable bankruptcy, insolvency, fraudulent conveyance, reorganization and similar laws affecting creditors’ rights generally and general principles of equity (regardless of whether such principles are considered in a proceeding in equity or at law).


InSight Heath Services Corp.		November 2, 2004

The foregoing opinions are limited to the laws of the State of New York and we do not express any opinion on the law of any other jurisdiction other than the laws of the State of New York and the federal law of the United States of America.

We consent to the filing of this opinion with the Commission as an exhibit to the Registration Statement and to the use of our name under the caption “Legal Matters” in the prospectus included therein. Our opinion is rendered solely for your information in connection with the foregoing, and may not be relied upon by any other person or for any other purpose without our prior written consent. In giving this opinion, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission.


		Very truly yours,

		/s/ Kaye Scholer LLP

Schedule A

InSight Health Services Holdings Corp.

InSight Health Corp.

Signal Medical Services, Inc.

Open MRI, Inc.

Maxum Health Corp.

Radiosurgery Centers, Inc.

Maxum Health Services Corp.

MRI Associates, L.P.

Maxum Health Services of North Texas, Inc.

Maxum Health Services of Dallas, Inc.

NDDC, Inc.

Diagnostic Solutions Corp.

Wilkes-Barre Imaging, L.L.C.

Orange County Regional PET Center—Irvine, LLC

San Fernando Valley Regional PET Center, LLC

Valencia MRI, LLC

Parkway Imaging Center, LLC

InSight Imaging Services Corp.

Comprehensive Medical Imaging, Inc.

Comprehensive Medical Imaging Centers, Inc.

Comprehensive Medical Imaging—Biltmore, Inc.

Comprehensive OPEN MRI—East Mesa, Inc.

TME Arizona, Inc.

Comprehensive Medical Imaging—Fremont, Inc.

Comprehensive Medical Imaging—San Francisco, Inc.

Comprehensive OPEN MRI—Garland, Inc.

IMI of Arlington, Inc.

Comprehensive Medical Imaging—Fairfax, Inc.

IMI of Kansas City, Inc.

Comprehensive Medical Imaging—Bakersfield, Inc.

Comprehensive OPEN MRI—Carmichael/Folsom, LLC

Syncor Diagnostics Sacramento, LLC

Syncor Diagnostics Bakersfield, LLC

Phoenix Regional PET Center—Thunderbird, LLC

Mesa MRI

Mountain View MRI

Los Gatos Imaging Center

Woodbridge MRI

Jefferson MRI—Bala

Jefferson MRI