background radiography plays an important role in the detection of interproximal caries. objectives the aim of the present study was to determine diagnostic accuracy of chargecoupled devices (ccd), photo stimulable phosphor (psp) and film radiography in detecting non-cavitated caries. patients and methods seventy-two non-cavitated approximal surfaces of extracted human posterior teeth were radi...

introduction: inappropriate condensation of gutta-percha or improper use of sealer can lead to voids in root canal filling material and consequent failure of the treatment. timely detection of voids within root canal filling may prevent complications. in this study, we compared the accuracy of digital and conventional radiograph for detecting voids within root canal fillings . materials & metho...

This paper describes a system for sub-pixel registration of mask and opacified digital X-ray images so that the mask image can be accurately subtracted out from the opacified image. Our technique results in digital subtraction angiograms (DSAs) with fewer artifacts and better contrast.

The use of digital imaging for the diagnostic purpose has been increased during last few years. This technique has brought advancement in the field of radiography. The effect of digital imaging on workflow has a direct relation with the performance of technologists. Aim: The predestined aim of this study was to analyze the use and influence of digital imaging on the workflow of the radiologists...

Intracranial vessels were examined in 55 patients with both conventional selective catheterization and intravenous digital subtraction angiography using a prototype digital subtraction unit. In 65% of the patients, the digital subtraction angiogram was diagnostic, but the overall quality was inferior to conventional selective angiography. In 22%, the digital subtraction angiogram provided diagn...

In private practice, success is ensured when one balances the art, science, and business of dentistry. Advanced technology continues to expand the capabilities of the contemporary dental practice, providing tools that allow clinicians to achieve greater efficiencies and productivity. Digital radiography, as one such tool, conveys benefits such as patient safety, rapid image capture, and many ot...

Wilhelm Roentgen first discovered X-rays in 1895. Since its introduction the mid-1980s, digital radiography has surpassed traditional screen-film radiography. 2000, more than 75 percent of medical clinics United States have migrated to (DR). In fact, US government ordered that all records be converted digital. Indirect, direct, or semi-direct pictures are types currently available. Forensic rad...

introduction: external root resorption is a clinical problem that often cannot be detected clinically. thus, radiography plays a crucial role in its diagnosis. however, optimal radiographic quality with minimal radiation exposure {2.1 [en] verify english word/phrase choice} is an important factor in selecting the appropriate radiographic technique. the aim of this study was the comparison of ac...

We studied the performance of three computed radiography and three direct radiography systems with regard to the image noise and entrance skin dose based on a chest phantom. Images were obtained with kVp of 100, 110, and 120 and mA settings of 1, 2, 4, 8, and 10. Significant differences of image noise were found in these digital chest radiography systems (P<.0001). Standard deviation was signif...

In the diagnosis of periodontal diseases, Digital Subtraction Radiography (DSR) is often used. A pair of dental radiographs is taken a few months apart. The difference between the two radiographs can be used as a basis for diagnosis. Even though the radiographs are in digital form, the alignment process to ensure an exact match between the two radiographs is done manually. Furthermore, there wo...