Agarose as a tissue equivalent phantom material for NMR imaging
✍ Scribed by Matthew D. Mitchell; Harold L. Kundel; Leon Axel; Peter M. Joseph
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 1002 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0730-725X
No coin nor oath required. For personal study only.
✦ Synopsis
Pbantoms for evaluation of nuclear magnetic resonance (NMR) imaging systems were made from water-based agarose gels, according to a standard procedure herein described. Copper sulfate (CUSO,) was included in tbe gels to further affect tbeir proton relaxation ckamcteristics. Tbe proton relaxation rates of each batch of gel are dependent on the concentrations of agarose and copper ions in it, with Tl depending more on copper than on agarose, and T2 depending more strongly on agarose tban on copper. Tbe wide range of Tl and T2 which can be covered, and the stability and physical characteristics of the agarose gel material make it well-suited for phantom use.