EX-23.3 55 y97778exv23w3.txt CONSENT OF ERNST & YOUNG LLP EXHIBIT 23.3 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the reference to our firm under the caption "Experts" and to the use of our report dated May 7, 2004, with respect to the combined financial statements of the Phoenix, Northern California and Central Regions of Comprehensive Medical Imaging, Inc. included in the Registration Statement (Form S-1 No. 333-_____) and related Prospectus of InSight Health Services Holdings Corp. for the registration of _____Income Deposit Securities. /s/ Ernst & Young LLP Los Angeles, California June 17, 2004