PD.pdf

Version 11-30-2016-1 FAR Part 11—Describing Agency Needs

PURCHASE DESCRIPTION

1. Statement of Need and Purpose: The purpose of the Philips MRI system is to allow the National Institute of Aging (NIA) to perform imaging and spectroscopy experiments and measurements for studies related to cognition and to aging.

2. Background Information and Objective: The National Institute on Aging (NIA), one of the 27 Institutes and Centers of NIH, leads the federal government in conducting and supporting research on aging and the health and well-being of older people. The Institute seeks to understand the nature of aging and the aging process, and diseases and conditions associated with growing older, in order to extend the healthy, active years of life. It’s mission is to support and conduct genetic, biological, clinical, behavioral, social, and economic research on aging, foster the development of research and clinician scientists in aging, provide research resources, and disseminate information about aging and advances in research to the public, health care professionals, and the scientific community among a variety of audiences.

A very significant aspect of NIA’s work is ongoing longitudinal studies, in which subjects are scanned over a period of month-to-years. In addition, NIA performs more time-limited studies; in that case the results are compared in detail with previous, completed work, also performed using the Philips scanner.

3. Generic Name of Product: MRI Imaging System

4. Purchase Description:

Ingenia 3.0T Omega, Philips Healthcare A division of Philips Electronics North America Corporation

5. Salient characteristics Shall have qualification of dStream Shall provide iPatient System Shall have ability to provide quantitative measurements that can be compared with longitudinal studies previously performed on Philips system

MRI Imaging System shall have the following features and characteristics:

a. Magnet, shim and table system

1) 3 Tesla field strength

2) Patient aperture at magnet isocenter 70 cm or greater

3) Static field homogeneity less than 2.0 ppm over a scan field of 50 × 50 × 45 cm

4) Maximum scan field of view (FOV) at least 55 × 55 ×50 cm

5) Minimum table height less than 60 cm

6) MRI table must have elevating trolley

Version 11-30-2016-1 FAR Part 11—Describing Agency Needs

7) 200 cm minimum scan coverage in inferior/superior direction

b. Gradient system

1) Maximum gradient strength at least 45 mT/m

2) Maximum gradient slew rate at least 200 mT/m/ms

c. Radio frequency (RF) system

1) Capability to transmit and receive on proton (1H) and heteronuclear (X) frequencies, where the X nucleus frequency must range must be at least 10-130 MHz

2) Patient-adaptive B1 field shimming using two or more independent RF amplifiers

3) Analog-to-digital conversion built into receive coils or table for maximum signal-to-noise ratio (SNR)

4) Channel-less receive architecture, permitting use with additional receive coil elements without a hardware upgrade to the scanner console

5) System automatically determines which coils and elements to active for best

SNR

6) Ability to acquire X-nucleus signal with proton decoupling and/or NOE enhancement

d. Software and Protocols

1) Susceptibility-weighted imaging (SWI) with phase maps

2) Motion correction sequence for all routine scans and weighting

3) 3D gradient echo Dixon protocol for body fat/water imaging

4) 2D spin echo Dixon protocol for neuro and musculoskeletal imaging

5) Reconstruction speed at 100% FOV at least 1000 images per second

6) User interface with guidance that simplifies scanning patients with MR

Conditional implants

7) View angle tilting and SEMAC sequence to reduce metal-induced image distortions

e. Siting Requirements

1) Minimum siting for entire system requires at most 31 square meters of floor space

2) Fluid cooling system incorporates redundant chillers

3) Magnet weight of no more than 5000 kg when filled with cryogens

6. Delivery Date: Within 60 days ARO