Percutaneous balloon kyphoplasty (PBKP) is generally performed under two-dimensional (2D) radiography guidance (lateral- and anteroposterior (A-P) views) using C-arm fluoroscopy. However, 2D images taken by single-plane or bi-plane fluoroscopy cannot provide information regarding axial views, particularly the Z axis. Lack of information regarding the Z axis prevents the creation of three-dimens...

In this study we evaluate the clinical image quality of a computed radiography system for different tube voltages. Images of anthropomorphic phantoms were produced and the quality of the images was evaluated using visual grading analysis (VGA) by a group of experienced radiologists. Two different X-ray examinations were investigated: chest PA and pelvis AP. The exposure conditions were set so t...

The scattering of visible light in optically dense sprays compromises the ability of common spray imaging techniques to capture the quantitative liquid mass distribution. Because of reduced susceptibility to multiple scattering, X-ray radiography can overcome the difficulties associated with optical wavelengths and provide quantitative measurements of liquid mass distribution in a variety of sp...

introduction: rapid diagnosis of traumatic intrathoracic injuries leads to improvement in patient management. this study was designed to evaluate the diagnostic value of chest radiography (cxr) in comparison to chest computed tomography (ct) scan in diagnosis of traumatic intrathoracic injuries. methods: participants of this prospective diagnostic accuracy study included multiple trauma patient...

The South African National Centre for Radiography and Tomography (SANCRAT), located at Necsa, strives to be leaders in utilizing ionizing radiation as imaging probes in research and development as part of the South African National System of Innovation. The centre already encompasses a Neutron Radiography and Tomography facility (SANRAD) as well as a High Energy X-ray facility (HEXRAD). Recentl...

OBJECTIVE: To develop a double-faced plane-parallel ionization chamber for measurement of air kerma and air kerma rate in X-radiation fields utilized in conventional radiography and mammography. MATERIALS AND METHODS: The chamber has entrance windows made of aluminized polyester film, inner and guard electrodes of aluminum at one side (face A) and graphite at the other side (face G). The presen...

Background: The radiation doses resulting from diagnostic X-ray examinations are routinely measured in terms of entrance surface dose (ESD) and effective dose (ED). In this study, for the purpose of radiation protection, the radiation doses received from Digital chest X-ray examination were evaluated in terms of ESD and ED. Material and Methods: The ED was calculated by using the MCNP ...