PURPOSE The objectives of this study were to survey the radiographic exposure parameters, to measure the patient doses for intraoral dental radiography nationwide, and thus to establish the diagnostic reference levels (DRLs) in intraoral dental X-ray examination in Korea. MATERIALS AND METHODS One hundred two intraoral dental radiographic machines from all regions of South Korea were selected...

In order to accurately diagnose patient conditions, an exposure time must be assigned to any Xray image taken. Previously, X-rays were assigned a time based on their development, not exposure. In order to improve this process, a device was designed to accurately and automatically timestamp an X-ray radiograph upon exposure. The device will ultimately be affixed to the computed radiography (CR) ...

conclusions despite close concordance between ultrasonography and chest radiography, ceus is not a suitable alternative for standard chest radiography in detecting cvc location; however, considering its high sensitivity and acceptable specificity in our study, its usefulness as a triage method for detecting cvc location on a real-time basis in the operating room cannot be ignored. results chest...

Study of Image quality parameters like Contrast, SNR and MTF for Digital Radiography with FPD were carried out at different X-Ray tube variables like energy of X-Ray (kV) and tube current (mA) for different welded tube thicknesses. Experiments of Digital Radiography were carried out on butt welded tubes. Images of these welded tubes were taken with different kV and mA on actual working setup ke...

Pre-operative X-ray mammography and intraoperative X-ray specimen radiography are routinely used to identify breast cancer pathology. Recent advances in optical coherence tomography (OCT) have enabled its use for the intraoperative assessment of surgical margins during breast cancer surgery. While each modality offers distinct contrast of normal and pathological features, there is an essential ...

Sensitivity calibration of imaging plates (IP) is important for quantitative measurements of intensity data obtained in various X-ray and gamma radiography experiments. To test the sensitivity of the IP (BAS2025) with the scanner (BAS5000) for higher photon energies, we have performed gamma exposure experimentsusing radionuclide (Co-57, Ba-133, Cs-137, Na-22 and Co-60). This provides useful inf...