Phantoms for specifications and quality assurance of mr imaging scanners

Development of a cone-shape phantom for multi-voxel MR spectroscopy

“…Sodium azide was added in each metabolite solution in order to prevent deterioration. Goodenough and Weaver (1988) used Copper sulfate because it also has a T1 time shorting function. A red Table 1.…”

“…Phantoms have been used in diagnostic research that involves computed tomography (CT) or a magnetic resonance imaging (MRI), as well as in radio-therapy, and their importance has been recognized for their use to accurately calibrate clinical equipment (Goodenough and Weaver, 1988). Many researchers have conducted experiments on phantoms that were designed in accordance with the aims of their studies.…”

Design of a fused phantom for quantitative evaluation of brain metabolites and enhanced quality assurance testing for magnetic resonance imaging and spectroscopy

“…2.B). This container was filled with copper sulfate (CuSO 4 , 0.7 g/L) diluted with water to reduce the T1 relaxation time (Goodenough and Weaver, 1988). Reducing the T1 relaxation time allows stronger signal acquisition, and decreases temperature dependence.…”

Development of a QA phantom and protocol for proton magnetic resonance spectroscopy

“…This modified structure eliminated the air bubbles in the vial. A copper sulfate solution was added to the body of the spherical phantom for T1 shortening (56). Although T1 shortening of the phantom solution helped and improved the spectral contrast, there was excessive T1 shortening due to the use of copper sulfate and Gd-DPTA.…”