NIMH 21002043RFQ Attachment 1 3T 1H31P head coil Purchase Description 2.26.21.pdf

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

PURCHASE DESCRIPTION

1. Statement of Need and Purpose: NIH requires a 3-Tesla proton (1H) and phosphorus

(31P) dual tuned MRI head.

2. Background Information and Objective:

Phosphorus (31P) MR spectroscopy (MRS) is a non-invasive technique for the study of tissue and energy metabolism under various physiological and pathophysiological conditions. It also provides a way to measure tissue pH.

MR Spectroscopy Section and Core have been conducting 31P MRS studies using 1H/31P surface coils on the prepherial brain tissue (frontal or occipital lobes). However, the shallow penetration of the radiofrequency wave from surface coils cannot reach brain tissue in deep brain region. To study brain metabolite inside human head, a volume head 1H/31P head coil must be used which can produce radiofrequncy wave penetrating into the deep brain.

3. Generic Name of Product: 3-Tesla proton (1H) and phosphorus (31P) dual tuned MRI head coil

4. Purchase Description: This is a MRI head coil that is designed to detect both proton

(1H) and phosphorus (31P) signal. The 1H channel is used to obtain regular MRI images and 1H MRS, and 31P channel is used to obtain 31P MRS.

5. Salient characteristics:

3-Tesla proton (1H) and phosphorus (31P) dual tuned MRI head coil

(1) Have two resonance channels, one for proton at ~128 MHz and another for phosphorus at ~51.7 MHz.

(2) Provide good signal-to-noise ratios for both channels.

(3) Easy setup for placement of human head.

(4) Meet government radiofrequency (RF) safety guideline for human use.

(5) Provide system interface/be compatible with a Siemens 3-Tesla scanner.

(6) The contractor shall provide an Original Equipment Manufacturer (OEM) certified service technician to perform setup, installation, and an on-site training session of at least one day for staff members.

(7) Following installation, contractor shall perform 3-dimensional electromagnetic field simulation maps and provide NIH the results.

6. Quantity: Delivery Date: No later than 90 days after receipt of order.

8. Period of Performance: The desired useful lifetime is 5 years.

9. Option(s): N/A