MRI diffusion phantoms: ADC and relaxometric measurement comparisons between polyacrylamide and agarose gels

Padhani, 2009, Diffusion-weighted magnetic resonance imaging as a cancer biomarker: consensus and recommendations, Neoplasia, 11, 102, 10.1593/neo.81328 Delakis, 2004, Developing a quality control protocol for diffusion imaging on a clinical MRI system, Phys. Med. Biol., 49, 1409, 10.1088/0031-9155/49/8/003 Palacios, 2017, Toward precision and reproducibility of diffusion tensor imaging: a multicenter diffusion phantom and traveling volunteer study, Am. J. Neuroradiol., 38, 537, 10.3174/ajnr.A5025 Keenan, 2018, Quantitative magnetic resonance imaging phantoms: a review and the need for a system phantom, Magn. Reson. Med., 79, 48, 10.1002/mrm.26982 Kalaitzakis, 2020, Apparent diffusion coefficient measurements on a novel diffusion weighted MRI phantom utilizing EPI and HASTE sequences, Phys. Medica., 73, 179, 10.1016/j.ejmp.2020.04.024 Laubach, 1998, A phantom for diffusion-weighted imaging of acute stroke, J. Magn. Reson. Imaging, 8, 1349, 10.1002/jmri.1880080627 Pykett, 1983, Measurement of spin-lattice relaxation times in nuclear magnetic resonance imaging, Phys. Med. Biol., 28, 723, 10.1088/0031-9155/28/6/012 Kalaitzakis, 2019, Optimising T2 relaxation measurements on MS patients utilising a multi-component tissue mimicking phantom and different fitting algorithms in T2 calculations, Hell. J. Radiol., 4, 18 Lerski, 1993, Performance assessment and quality control in MRI by Eurospin test objects and protocols, Magn. Reson. Imaging, 11, 817, 10.1016/0730-725X(93)90199-N Lerski, 1988, Protocols and test objects for the assessment of MRI equipment. EEC concerted research project, Magn. Reson. Imaging, 6, 195, 10.1016/0730-725X(88)90451-1 Price, 1999, The AAPM/RSNA physics tutorial for residents: MR imaging safety considerations, Radiographics, 19, 1641, 10.1148/radiographics.19.6.g99no331641 Bloembergen, 1948, Relaxation effects in nuclear magnetic resonance absorption, Phys. Rev., 73, 679, 10.1103/PhysRev.73.679 Lavdas, 2013, A phantom for diffusion-weighted MRI (DW-MRI), J. Magn. Reson. Imaging, 38, 173, 10.1002/jmri.23950 Jerome, 2016, Development of a temperature-controlled phantom for magnetic resonance quality assurance of diffusion, dynamic, and relaxometry measurements, Med. Phys., 43, 2998, 10.1118/1.4948997 Gottlieb, 1997, NMR chemical shifts of common laboratory solvents as trace impurities, J. Org. Chem., 10.1021/jo971176v McCarney, 2007, Hyperpolarized water as an authentic magnetic resonance imaging contrast agent, Proc. Natl. Acad. Sci. U. S. A., 104, 1754, 10.1073/pnas.0610540104