Visual evaluation of microscopic mottle.
According to Rose the resolution of an imaging system is under certain conditions limited by noise rather than by the finite geometric response as expressed by the modulation transfer function. In order to investigate whether this applies to clinical radiography as well, a technique for magnification of roentgen films has been devised, making possible visual evaluation of microscopic noise.
D008722:Methods; D008853:Microscopy; D010784:Photomicrography / Q000295:instrumentation; D011859:Radiography / Q000295:instrumentation