[Technical parameters to decrease the radiation dose from conventional and digital radiographs] [0.03%]
[减少常规及数字射影片辐射剂量的技术参数]
J N Foulquier
J N Foulquier
Reducing radiation dose while maintaining adequate image quality on conventional and digital radiographs requires optimal use of the unit. Additional filtration avoids unnecessary tissue exposure and improves photon transmission. Automatic ...
S Willoteaux,E Sibileau,J Caroff et al.
S Willoteaux et al.
Dose delivery during CT coronary angiography with retrospective ECG gating is high especially due to the important slice overlapping. Optimization of the acquisition parameters is necessary to reduce patient exposure. First, the height of t...
[Duties of the radiologist for the radiation protection of radiation workers] [0.03%]
[放射学家在放射工作人员防护中的职责]
J-L Rehel
J-L Rehel
After a risk analysis has been completed by the radiation safety officer, all entities where a source of ionizing radiation is present must established a monitored or controlled zone containing the source. When exposure exceeds the maximum ...
C Etard
C Etard
The obligations of the radiologist for the radiation protection of patients include a review of the appropriateness of the examination and optimization of the protocol. Both internal and external quality assurance programs are mandatory. Th...
B Aubert
B Aubert
Over the last 10 years, the framework of radiation protection in France has undergone significant modifications. This has mainly been the result of implementation of European directives, which are based on new data and evolving concepts at ...
J-F Chateil,B Aubert,H Brisse
J-F Chateil
Radiologists should be able to appreciate the radiation dose delivered to patients for routine diagnostic procedures. The radiology report should include data necessary to calculate the patient dose in Gray. Using the effective dose, it is ...
[Concepts of dosimetry] [0.03%]
〔剂量学的概念〕
D-J Gambini
D-J Gambini
The effects of exposure to ionizing radiation are determined by the absorbed dose D. The equivalent dose H takes into consideration the variation in probability of a stochastic effect (cancer, leukemia, genetic mutation) based on the qualit...
D-J Gambini
D-J Gambini
An x-ray tube mainly emits low-energy X-rays, with few maximum energy E₀ (equal in keV to the voltage U in kV) x-rays. Aluminium filtration (mandatory minimum thickness of 1.5 to 2.5 mm based on tube voltage) reduces soft X-rays and provid...
Y-S Cordoliani
Y-S Cordoliani
F Le Moigne,T Vitry,J L Lamboley et al.
F Le Moigne et al.