DHHS, PHS, Centers For Disease Control And Prevention, Program Acquisition Branch (Washington), 6525 Belcrest Road, Room 1170, Hyattsville, MD 20782

B -- DUAL ENERGY X-RAY ABSORPTIOMETRY (DXA) BODY COMPOSITION AND DENSITOMETRY QUALITY CONTROL CENTER FOR NHANES IV TOTAL BODY SCANS ACQUIRED WITH HOLOGIC QDR 4500A FAN- BEAM INSTRUMENTS SOL 200-99-7002 POC Contact Point, Elisa Hillman, 301/436-7007, Contracting Officer, Ronald L. Atherholt This requirement is for the acquisition of scan image analysis and review of total body DXA scan data, including quality control data. Scans will be analyzed for total and regional bone mineral and soft tissue composition. The period of performance will be one year for the basic contract with a possible additional 6-one-year option periods. The contractor will provide: personnel with expertise in scan image analysis and in quality control evaluation of total body fan-beam DXA scan data collected on a Hologic QDR 4500A fan-beam densitometer from sample persons and quality control data from standardized calibration phantoms; and standardized criteria for evaluating these data. Personnel with expertise in using DXA to measure bone mineral and soft tissue will review scans to ensure that acquisition by NHANES IV field staff and analysis by the contractor's scan analysts are appropriate. The contractor will use the same standardized approach for evaluating these data for all seven years of the contract. If changes in either the technology for collecting and analyzing DXA total body scan data or in the criteria for evaluating the data occur, the contractor will perform studies to assess the comparability of the original and revised methods using a Hologic QDR 4500A fan-beam bone densitometer installed with 8.24a:3 version software at the contractor's institution. In addition, if more than one person is used to perform image analysis or expert review of the total body scan data, the contractor will provide estimates of inter-reader reliability. The estimated release date for this RFP is approximately 15 days after this publication and closing will be approximately 30 days after issue date. Requests for copies must be submitted in writing and addressed to Ms. Elisa Hillman, reference RFP Number 200-99-7002. All responsible sources may submit a proposal which shall be considered by the agency. Posted 10/19/98 (W-SN263142). (0292)

Loren Data Corp. http://www.ld.com (SYN# 0013 19981021\B-0003.SOL)