In 1979, Hounsfield won the Nobel Prize in Physiology or Medicine for his role in the development of computer-assisted tomography. He shared it with Allan Cormack, a physicist who had worked out the ...

Single-photon-emission computed tomography (SPECT) using cone-beam geometry requires accurately built collimators and an appropriate reconstruction algorithm. The authors have investigated the imaging ...

Recent high-power gyrotrons, capable of producing radio-frequency power above 1 MW, often suffer from parasitic oscillations in the beam tunnel, despite the presence of dielectric loading materials ...

Use of cone-beam-computed tomography in endodontics. Pa Dent J2011;78:37-39. 9 Estrela, C; Couto, GS; Bueno, MR; Bueno, KG; Estrela, LRA; Porto, OCL; et al. Apical foramen position in relation to ...