CBCT imaging is the most significant technologic advances in maxillofacial imaging since the introduction of panoramic radiograph. It was initially developed commercially for an angiography. It uses a divergent cone shaped or pyramidal shaped source of ionizing radiation and two dimensional area detector fixed on a rotating gantry, to provide multiple sequential transmission images thatContinue reading “CONE BEAM COMPUTED TOMOGRAPHY (CBCT)”
Tag Archives: ct scan
GAMMA CAMERA
INTRODUCTION AKA Anger camera or Scintillation Camera. Most common means of forming an image. These cameras capture photons and convert them to light and then to a voltage signal. This signal is reconstructed to a planar image that shows the distribution of radionuclide in the patient. Gamma camera have a spatial resolution of 3 toContinue reading “GAMMA CAMERA”
Eagle’s Syndrome (Styloid Syndrome)
INTRODUCTION Eagle’s Syndrome is characterized by a specific orofacial secondary to calcification of the stylohyoid ligament or elongated styloid process. AKA Styloid syndrome/ Styloid chain ossification. Ossification of the styloid ligament usually extends downwards from the base of skull and commonly occurs bilaterally. Ossification begins at the lesser horn of the hyoid or in theContinue reading “Eagle’s Syndrome (Styloid Syndrome)”
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
Introduction SPECT is a nuclear medicine tomography imaging technique using gamma rays. Emission of single photon from decay process. Dynamic imaging modality where a series of images are obtained. Image obtained in 3 planes. Obtained by different angles. Reconstruct the layer. Principle Radio isotope is delivered to the patient -> Attaches to specific ligand inContinue reading “SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY”
Medical Student Stuffs 