Impact of rare earth element added filters on the X-ray beam spectra: a Monte Carlo approach.

The effectiveness of added filters including conventional and rare earth materials for dental radiography tasks was investigated using a simulation approach. Current study focuses on the combination of a range of various filters to investigate the reduction of radiation absorbed dose and improving the quality of a radiography image. To simulate the X-ray beam spectrum, a MCNP5 code was applied.

Comparison between cone beam computed tomography and multislice computed tomography in diagnostic accuracy of maxillofacial fractures in dried human skull: an in vitro study.

Background: The aim of this study was to compare the accuracy of cone beam computed tomography (CBCT) and multislice computed tomography (MSCT) in diagnosing factitious fractures in maxillofacial region as well as to investigate the influence of field of view (FOV) size on the interpretation of maxillofacial fractures in CBCT.

Methods: Simulated fractures were created in the right and left sides of five dried human skulls using a micro-saw 20 mm blade without displacement. The skulls were scanned with a spiral 16-slice MSCT scanner and a CBCT device with two FOVs (6 × 6, 15 × 15).