Fig. 1. Photographs of phantom and phantom installed in head coil. A Fig. 1. Photographs of phantom and phantom installed in head coil. A. Capillary array phantom, measuring 1 cm in length and 1 cm in diameter. B. Capillary array phantom (arrow) is attached to water-filled bottle and installed in 8-channel head coil. Phantom is securely placed in syringe tube filled with distilled water and air bubble is meticulously removed. Korean J Radiol. 2015 Mar-Apr;16(2):297-303. http://dx.doi.org/10.3348/kjr.2015.16.2.297