Results 181 to 190 of about 6,644,877 (248)

An Assessment of Reference Levels in HDR Content

SMPTE Motion Imaging Journal, 2018
The movie and broadcast industries are gaining experience with high-dynamic-range (HDR) video technologies and are starting to produce HDR content at scale. This is accompanied by a learning process, particularly involving questions regarding the use of the extra dynamic range afforded by these technologies.
Erik Reinhard, Jurgen Stauder, Michel Kerdranvat   +2 more
openaire   +2 more sources

Expanding the Concept of Diagnostic Reference Levels to Noise and Dose Reference Levels in CT

American Journal of Roentgenology, 2019
OBJECTIVE. Diagnostic reference levels were developed as guidance for radiation dose in medical imaging and, by inference, diagnostic quality. The objective of this work was to expand the concept of diagnostic reference levels to explicitly include noise of CT examinations to simultaneously target both dose and quality through corresponding reference ...
Ria, Francesco, Davis, Joseph T, Solomon, Justin B, Wilson, Joshua M, Smith, Taylor B, Frush, Donald P, Samei, Ehsan   +6 more
openaire   +3 more sources

Levels of intension and theories of reference

Theoria, 1986
I. Johansson
openaire   +2 more sources

U.S. Diagnostic Reference Levels and Achievable Doses for 10 Pediatric CT Examinations.

Radiology, 2021
Background Diagnostic reference levels (DRLs) and achievable doses (ADs) were developed for the 10 most commonly performed pediatric CT examinations in the United States using the American College of Radiology Dose Index Registry.
K. Kanal, P. Butler, Mythreyi B Chatfield, J. Wells, E. Samei, Michael Simanowith, Dan Golden, D. Gress, J. Burleson, W. Sensakovic, K. Strauss, D. Frush   +11 more
semanticscholar   +1 more source

Current status of diagnostic reference levels in interventional cardiology

Journal of Radiological Protection, 2022
Abstract Interventional cardiology provides indisputable benefits for patients but uses a substantial amount of ionising radiation. The diagnostic reference level (DRL) is the tool recommended by the International Commission on Radiological Protection to optimise imaging procedures.
Roberto M Sanchez, Teemu Siiskonen, Eliseo Vano   +2 more
openaire   +2 more sources

A Review of Diagnostic Reference Levels in Computed Tomography

Current Medical Imaging Formerly Current Medical Imaging Reviews, 2022
: Computed Tomography (CT) scanning generates 3-D images of the inside structures of the body by delivering a comparative radiation dose to the patient. This requires great concern of optimization via establishing Diagnostic Reference Level (DRL). DRL values can be estimated based on reference patient percentiles (such as 90th, 75th, and 50th) dose ...
Ilker Ozsahin, Jemal Edris Dawd, Dilber Uzun Ozsahin   +2 more
openaire   +2 more sources

Development of a low-level radon reference atmosphere

Applied Radiation and Isotopes, 2013
In order to calibrate measurement devices for the activity concentration of Rn-222 (radon) in air below 1,000 Bq/m(3), a constant for long time (>5d), homogeneous reference atmosphere is created by a certified activity in a certified volume. The PTB developed this reference atmosphere from 150 Bq/m(3) to 2,000 Bq/m(3) based on the precisely known ...
Diana, Linzmaier, Annette, Röttger
openaire   +2 more sources