Introduction: Phantom studies facilitate the implementation of radiation dose surveillance as a function of radiographic technical parameters for minimizing patient radiation dose. The evidence of such investigations can then be used to evaluate technical parameters used in the radiographic procedures to reduce radiation dose without compromising the image quality. Material and Methods: This ex...

background and aims. in periapical radiographic technique, the changes will be visible only after considerable deposition or resorption while digital subtraction technique visualizes slight density changes. this study was aimed to compare visualization of density changes in conventional periapical radiographs and digital subtraction technique with or without image enhancement. materials and met...

introduction: determination of the canal working length with radiographs has many drawbacks. electronic apex locators have been developed to overcome some of these problems. recently, a newly designed apex locator called novapex has been introduced. all the studies conducted to determine the accuracy of novapex have been carried out in-vitro on extracted teeth. the aim of this in vivo study was...

The Developmental Dysplasia of the Hip (DDH), also know as Congenital Dislocation of the Hip, is common in infants and children and may persist into adulthood. The radiographic interpretation is highly conditioned by appropriate patient positioning and image quality criteria. The main goal of this study is to demonstrate the value of radiographic evaluation of DDH. Through the retrospective ana...

This study determined whether the orientation of dorsoplantar and oblique foot radiographs has an effect on radiograph interpretation. A test set of 50 consecutive foot radiographs were selected (25 with fractures, and 25 normal), and duplicated in the horizontal orientation. The images were randomly arranged, numbered 1 through 100, and analysed by six image interpreters. Vertical and horizont...

Objective- To investigate and quantitate radiological and clinical changes in tissues and structures of the claws affected by Rusterholz ulcer.    Design- Cross-sectional and Descriptive study Animal- Seven culled lame cows were affected with “Rusterholz” ulcer Procedures- Forty one culled lame cows of 1135 culled cows having digital disorders which were randomly selected for clinical and r...

The radiographic image is the bidimensional projection of a tridimensional volume. Interpretation of such an image is sometimes uneasy as we cannot determine ot which level the shadows are located. To dissociate the superimposed shadows, the radiologist may rely on different techniques including fluoroscopy, profile view, radiosteoroscopy, conventional tomography, transverse axial tomography or...

The objective of the work consists in the design and implementation of techniques of automatic recognition of weld regions. It is aimed to complete a system of automatic inspection of radiographic images of welded joints. It deals with the problem of the delimitation of the weld regions according to the general scheme of image interpretation systems based on knowledge.