UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: February 15, 2011
Accession Number: 0000950123-11-008786
Submission Type: POS AM
CIK: 0001012697
Company Name: INSIGHT HEALTH SERVICES CORP
File Number: 333-129318
CIK: 0001145238
Company Name: INSIGHT HEALTH SERVICES HOLDINGS CORP
File Number: 333-129318-40
CIK: 0001164086
Company Name: INSIGHT HEALTH CORP
File Number: 333-129318-39
CIK: 0001164049
Company Name: SIGNAL MEDICAL SERVICES
File Number: 333-129318-38
CIK: 0001164053
Company Name: OPEN MRI INC
File Number: 333-129318-37
CIK: 0001164051
Company Name: MAXUM HEALTH SERVICES CORP
File Number: 333-129318-34
CIK: 0001293379
Company Name: Orange County Regional PET Center-Irvine, LLC
File Number: 333-129318-27
CIK: 0001293389
Company Name: Parkway Imaging Center,LLC
File Number: 333-129318-24
CIK: 0001293393
Company Name: Comprehensive Medical Imaging, Inc.
File Number: 333-129318-22
CIK: 0001293395
Company Name: Comprehensive Medical Imaging Centers, Inc.
File Number: 333-129318-21