New polyvinyl alcohol gel material for MRI phantoms

Autor: Masahiro Iio, Masao Nambu, Hitoshi Goshima, Isamu Mano
Rok vydání: 1986
Předmět:
Zdroj: Magnetic Resonance in Medicine. 3:921-926
ISSN: 0740-3194
DOI: 10.1002/mrm.1910030612
Popis: Nambu PVA gel which is produced by repeated freezing and thawing of PVA solution has overcome almost all of the problems which present substances have: (1) It is close to human soft tissue in MRI parameters. (2) MRI parameters (1H density, T1, T2) are adjustable to some extent. (3) It has appropriate physical characteristics. The important problem with PVA gel is long-term stability. It is assumed that this problem can be solved by its periodic calibration and replacement. © 1986 Academic Press, Inc.
Databáze: OpenAIRE