title: [Development of a gel phantom for dose distributions by MR imager].
abstract: We reported a method of determining spatial dose distributions in tissue-equivalent phantoms using nuclear magnetic resonance imaging. To make a gel phantom, a cross-linked dextran gel (Sephadex G-200) was used as fixation agent of a ferrous sulphate solution. Although high quality images are obtained, the cost is very expensive to make the gel. We developed a new gel which is combined with an extra water absorbent polymer (Sumikagel N-100) and Sephadex G-200. The gel permits the determination of dose distributions for three dimensional treatment planning.
authors.forename: T
authors.initials: T
authors.lastname: Hiraoka
authors.forename: N
authors.initials: N
authors.lastname: Fukuda
authors.forename: K
authors.initials: K
authors.lastname: Hoshino
authors.forename: H
authors.initials: H
authors.lastname: Ikehira
authors.forename: T
authors.initials: T
authors.lastname: Nakano
authors.forename: K
authors.initials: K
authors.lastname: Kawashima
mesh_terms: D005296:Ferrous Compounds; D005782:Gels; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008961:Models, Structural; D011874:Radiometry / Q000379:methods*
chemical_list: D005296:Ferrous Compounds; D005782:Gels