QUALITY ASSESSMENT IN IN-VIVO NMR-SPECTROSCOPY .3. CLINICAL-TEST OBJECTS - DESIGN, CONSTRUCTION, AND SOLUTIONS

Based on the requirements of test protocols developed to evaluate clin ical MRS single slice and volume localisation sequences, two clinical test objects, STO1 and STO2 have been developed. The properties of a r ange of potential construction materials have been assessed, demonstra ting that the water/Perspex interface produced minimum susceptibility effects. The design of the objects has been evaluated in trials on dif ferent magnetic resonance instruments, with size and loading being adj usted to allow use on currently available equipment. Appropriate test solutions for P-31 and H-1 measurements have been developed and their properties evaluated.