Cameras embedded in consumer devices have previously been used as physiological information sensors. The waveform of the photoplethysmographic image (PPGi) signals may be significantly affected by the light spectra and intensity. The purpose of this paper is to evaluate the performance of PPGi waveform acquisition in the red, green, and blue channels using a commercial camera in different light...

In 2012, the American Board of Medical Specialties announced a new dual primary certificate in interventional radiology (IR) and diagnostic radiology. This dual primary training and certification demonstrates how the role of the interventional radiologist has shifted. The primary intent of this new pathway is to provide a broader and more in-depth experience in the clinical diagnosis and care o...

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Within the past 20 years, the radiographic examination in the medical field has increased by a factor of about 3 to 5 times, while the total radiation dose has increased by a factor of about 200-400. This has ascribed to the rapid increase in CT usage (1). T...

Energy imparted is a measure of the total ionizing energy deposited in the patient during a radiologic examination and may be used to quantify the patient dose in diagnostic radiology. Values of the energy imparted per unit exposure-area product, omega (z), absorbed by a semi-infinite water phantom with a thickness z, were computed for x-ray spectra with peak x-ray tube voltages ranging from 50...

A new edition of the international standard IEC 60627 of anti-scatter grids will be published within some months. The presentation deals with the most important characteristics of anti-scatter grids according to the standard. Introduction During imaging in diagnostic radiology, X-ray beam is scattered on all media between X-ray source and X-ray image receptor. The most important one from these ...