CT dose management for neurologic events in patients with cardiac devices: Radiation exposure variation in patients with cardiac devices

2021 ◽  
Author(s):  
Gokcen Coban ◽  
◽  
Safak Parlak ◽  
Mehmet Ruhi Onur ◽  
Egemen Cifci ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Ct Dose ◽  
Cardiac Devices ◽  
Dose Management

The Current State of CT Dose Management Across Radiology: Well Intentioned but Not Universally Well Executed

2018 ◽  
Vol 211 (2) ◽  
pp. 405-408 ◽  
Author(s):  
Timothy P. Szczykutowicz ◽  
Robert Bour ◽  
Frank Ranallo ◽  
Myron Pozniak
Keyword(s):  
Ct Dose ◽  
Current State ◽  
Dose Management

scholarly journals Practicalities of dose management for Japanese astronauts staying at the International Space Station

2020 ◽  
Vol 49 (1_suppl) ◽  
pp. 194-199
Author(s):  
T. Komiyama
Keyword(s):  
Radiation Exposure ◽  
International Space Station ◽  
Space Station ◽  
Space Radiation ◽  
Radiation Environment ◽  
International Space ◽  
Dose Limits ◽  
Dose Management ◽  
Effects Of Radiation ◽  
Tissue Reactions

Japanese astronauts started staying at the International Space Station (ISS) in 2009, with each stay lasting for approximately 6 months. In total, seven Japanese astronauts have stayed at the ISS eight times. As there is no law for protection against space radiation exposure of astronauts in Japan, the Japan Aerospace Exploration Agency (JAXA) created its own rules and has applied them successfully to radiation exposure management for Japanese ISS astronauts, collaborating with ISS international partners. Regarding dose management, JAXA has implemented several dose limits to protect against both the stochastic effects of radiation and dose-dependent tissue reactions. The scope of the rules includes limiting exposure during spaceflight, exposure during several types of training, and exposure from astronaut-specific medical examinations. We, therefore, are tasked with calculating the dose from all exposure types applied to the dose limits annually for each astronaut. Whenever a Japanese astronaut is at the ISS, we monitor readings of an instrument in real-time to confirm that the exposed dose is below the set limits, as the space radiation environment can fluctuate in relation to solar activity.

scholarly journals Identification of Factors Influencing Cumulative Long-Term Radiation Exposure in Patients Undergoing EVAR

2017 ◽  
Vol 2017 ◽  
pp. 1-10
Author(s):  
G. Kalender ◽  
Milan Lisy ◽  
U. A. Stock ◽  
A. Endisch ◽  
A. Kornberger
Keyword(s):  
Radiation Exposure ◽  
Optimal Dose ◽  
Aneurysm Rupture ◽  
Aortic Aneurysms ◽  
Endovascular Interventions ◽  
Exposure Data ◽  
Modifiable Factors ◽  
Original Procedure ◽  
Dose Management

Patients who undergo endovascular repair of aortic aneurysms (EVAR) require life-long surveillance because complications including, in particular, endoleaks, aneurysm rupture, and graft dislocation are diagnosed in a certain share of the patient population and may occur at any time after the original procedure. Radiation exposure in patients undergoing EVAR and post-EVAR surveillance has been investigated by previous authors. Arriving at realistic exposure data is essential because radiation doses resulting from CT were shown to be not irrelevant. Efforts directed at identification of factors impacting the level of radiation exposure in both the course of the EVAR procedure and post-EVAR endovascular interventions and CTAs are warranted as potentially modifiable factors may offer opportunities to reduce the radiation. In the light of the risks found to be associated with radiation exposure and considering the findings above, those involved in EVAR and post-EVAR surveillance should aim at optimal dose management.

CT Dose Management: Our Experience in Implementing a Program With an Education-Focused Approach

2019 ◽  
Vol 212 (4) ◽  
pp. W111-W111 ◽  
Author(s):  
Sofia Velasco ◽  
David Torres-Cortes ◽  
Diego Aguirre
Keyword(s):  
Ct Dose ◽  
Dose Management

Radiation exposure during paediatric CT in Sudan: CT dose, organ and effective doses

2014 ◽  
Vol 167 (4) ◽  
pp. 513-518 ◽  
Author(s):  
I. I. Suliman ◽  
H. M. Khamis ◽  
T. H. Ombada ◽  
K. Alzimami ◽  
M. Alkhorayef ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Ct Dose ◽  
Effective Doses

CT dose management of adult patients with unknown body weight using an effective diameter

2021 ◽  
Vol 135 ◽  
pp. 109483
Author(s):  
Masaaki Fukunaga ◽  
Kosuke Matsubara ◽  
Shota Ichikawa ◽  
Hideki Mitsui ◽  
Hiroyuki Yamamoto ◽  
...  
Keyword(s):  
Body Weight ◽  
Adult Patients ◽  
Effective Diameter ◽  
Ct Dose ◽  
Dose Management

PATIENTS DOSE ESTIMATION IN CT EXAMINATIONS USING SIZE SPECIFIC DOSE ESTIMATES

2018 ◽  
Vol 184 (2) ◽  
pp. 256-262 ◽  
Author(s):  
Neha Choudhary ◽  
Bhupendra Singh Rana ◽  
Arvind Shukla ◽  
Arun Singh Oinam ◽  
Narinder Paul Singh ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
American Association ◽  
Volume Index ◽  
Third Generation ◽  
Dose Estimation ◽  
Ct Dose ◽  
Abdomen Ct ◽  
Dose Volume ◽  
Computed Tomography Dose Index ◽  
Dose Index

Abstract The present work reports data of radiation exposure to the patients during head, chest, pelvis and abdomen CT examinations performed on a third-generation 16-slice CT machine. Radiation exposure was estimated using size specific dose estimates (SSDE) method, which takes into account patient’s physical dimensions in phantom measured computed tomography dose index (CTDI) value. The reported median CT dose volume index CTDIvol values in head, chest, pelvis and abdomen examinations were 26.76, 16.27, 29.81 and 14.74 mGy, respectively. The median doses evaluated using SSDE methodology for the above mentioned procedure were 54.1, 23.1, 42.8 and 20.1 mGy, respectively. Our results showed variation in dose values estimated using CTDI and SSDE methods in all examinations. The evaluated SSDE values were also compared to the values derived from data reported by the American Association of Physicist in Medicine (AAPM). SSDE values in present measurements are 4–8% lower than AAPM values. The present results show that CTDI parameters recorded on CT console should not be used to specify patient dose during CT procedures.

Impact of active dose management on radiation exposure and image quality in computed tomography: An observational study in 1315 patients

2020 ◽  
Vol 125 ◽  
pp. 108900 ◽  
Author(s):  
Gesa H. Poehler ◽  
Babak Alikhani ◽  
Filip Klimes ◽  
Erik F. Hauck ◽  
Kristina I. Ringe ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Observational Study ◽  
Radiation Exposure ◽  
Dose Management ◽  
Active Dose
Sign in / Sign up

Export Citation Format

Share Document