scholarly journals POTENTIAL IMPACT OF NON-INVASIVE FFRCT ON RADIATION DOSE EXPOSURE AND DOWNSTREAM CLINICAL EVENT RATE

2015 ◽  
Vol 65 (10) ◽  
pp. A1126
Author(s):  
Nicolas Bilbey ◽  
Philipp Blanke ◽  
Chesnal Arepalli ◽  
James Min ◽  
Bjarne Norgaard ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Event Rate ◽  
Clinical Event ◽  
Non Invasive ◽  
Radiation Dose Exposure ◽  
Potential Impact

Potential impact of clinical use of noninvasive FFRCT on radiation dose exposure and downstream clinical event rate

2016 ◽  
Vol 40 (5) ◽  
pp. 1055-1060 ◽  
Author(s):  
Nicolas Bilbey ◽  
Philipp Blanke ◽  
Christopher Naoum ◽  
Chesnel Dey Arepalli ◽  
Bjarne Linde Norgaard ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Event Rate ◽  
Clinical Event ◽  
Clinical Use ◽  
Radiation Dose Exposure ◽  
Potential Impact

scholarly journals Low-Dose Computed Tomography for the Optimization of Radiation Dose Exposure in Patients with Crohn’s Disease

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Richard G. Kavanagh ◽  
John O’Grady ◽  
Brian W. Carey ◽  
Patrick D. McLaughlin ◽  
Siobhan B. O’Neill ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Crohn’S Disease ◽  
Image Quality ◽  
Crohn's Disease ◽  
Radiation Dose ◽  
Ionizing Radiation ◽  
Low Dose ◽  
Radiation Doses ◽  
Radiation Dose Exposure ◽  
Ct Technology

Magnetic resonance imaging (MRI) is the mainstay method for the radiological imaging of the small bowel in patients with inflammatory bowel disease without the use of ionizing radiation. There are circumstances where imaging using ionizing radiation is required, particularly in the acute setting. This usually takes the form of computed tomography (CT). There has been a significant increase in the utilization of computed tomography (CT) for patients with Crohn’s disease as patients are frequently diagnosed at a relatively young age and require repeated imaging. Between seven and eleven percent of patients with IBD are exposed to high cumulative effective radiation doses (CEDs) (>35–75 mSv), mostly patients with Crohn’s disease (Newnham E 2007, Levi Z 2009, Hou JK 2014, Estay C 2015). This is primarily due to the more widespread and repeated use of CT, which accounts for 77% of radiation dose exposure amongst patients with Crohn’s disease (Desmond et al., 2008). Reports of the projected cancer risks from the increasing CT use (Berrington et al., 2007) have led to increased patient awareness regarding the potential health risks from ionizing radiation (Coakley et al., 2011). Our responsibilities as physicians caring for these patients include education regarding radiation risk and, when an investigation that utilizes ionizing radiation is required, to keep radiation doses as low as reasonably achievable: the “ALARA” principle. Recent advances in CT technology have facilitated substantial radiation dose reductions in many clinical settings, and several studies have demonstrated significantly decreased radiation doses in Crohn’s disease patients while maintaining diagnostic image quality. However, there is a balance to be struck between reducing radiation exposure and maintaining satisfactory image quality; if radiation dose is reduced excessively, the resulting CT images can be of poor quality and may be nondiagnostic. In this paper, we summarize the available evidence related to imaging of Crohn’s disease, radiation exposure, and risk, and we report recent advances in low-dose CT technology that have particular relevance.

Radiation dose exposure during cardiac and peripheral arteries catheterisation

2006 ◽  
Vol 113 (2) ◽  
pp. 283-284 ◽  
Author(s):  
D. Kocinaj ◽  
A. Cioppa ◽  
G. Ambrosini ◽  
T. Tesorio ◽  
L. Salemme ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Peripheral Arteries ◽  
Radiation Dose Exposure

scholarly journals The study of systemic hemodynamics by the method of volumetric compression oscillometry in young people

2021 ◽  
Vol 10 (2) ◽  
pp. 10-14
Author(s):  
R. V. Gorenkov ◽  
O. Yu. Alexandrova ◽  
M. A. Yakushin ◽  
T. P. Vasilyeva ◽  
T. O. Mirzokhonov ◽  
...  
Keyword(s):  
Young People ◽  
Systemic Hemodynamics ◽  
Non Invasive ◽  
Hardware Complex ◽  
Healthy Young People ◽  
Hemodynamic Profile ◽  
Software And Hardware ◽  
Potential Impact ◽  
Automated Software ◽  
Medical Examinations

Aim. To investigate the state of systemic hemodynamics (SHD) in young people to assess the potential impact of its disorders in the formation of arterial hypertension (AH) and to carry out preventive measures.Methods. A random sample of 91 young people from 17 to 25 years old was examined; 27 of them were men (average age 23.7±1.6 years) and 64 women (average age 20.4±1.1 years). The study involved clinical residents and students who, according to preliminary and periodic medical examinations, excluded the presence of cardiovascular diseases. The indicators of SHD were investigated by the method of volumetric compression oscillometry using a portable automated software and hardware complex for non-invasive research of central hemodynamics (Device “CAP TsG osm-“Globus”).Results. AH was detected in 4.4%; “white coat” AH in 8.79%; arterial hypotension – in 5.49%. In individuals with normal blood pressure (BP) (75 people), an increase in specific peripheral vascular resistance was most often revealed in 30.6%. An unchanged hemodynamic profile in the group with a normal BP level was recorded only in 28.0% of the examinees.Conclusion. The obtained results indicate that even among “healthy” young people aged 18- 25 years with a normal BP level, the proportion of people with impaired SHD values is 72%. People with hypertension and with altered SHD indicators should be included in the regular medical check-up observation group. 

PROPOSAL FOR LOCAL DIAGNOSTIC REFERENCE LEVELS IN GENERAL RADIOGRAPHY IN JAPAN

2019 ◽  
Author(s):  
Yasuki Asada ◽  
Koji Ono ◽  
Yuya Kondo ◽  
Kazuma Sugita ◽  
Takuma Ichikawa ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Dose Distributions ◽  
X Ray ◽  
Non Invasive ◽  
Air Kerma ◽  
Aichi Prefecture

Abstract The present study aimed to propose local diagnostic reference levels (DRLs) formulated by calculating entrance surface doses for general radiography at 20 facilities of Aichi prefecture in Japan, by comparing these values with DRLs established in Japan in 2015 (DRLs 2015) and assessing radiation dose differences among facilities. X-ray outputs (half-value layer and air kerma) of each facility were measured with a non-invasive type of detector. The results were employed to formulate local DRLs based on the 75th percentiles of dose distributions. These local DRLs were lower than the DRLs 2015 for all examinations. If proposed local DRLs from other 46 prefectures can be collected, this paper can be used to benefit the next effort to draft better DRL for Japan.

scholarly journals CRT-300.05 Impact of Table Height on Radiation Dose Exposure for the Female Interventional Cardiologist

2020 ◽  
Vol 13 (4) ◽  
pp. S37
Author(s):  
Logan S. Schwarzman ◽  
David S. Tofovic ◽  
Mladen I. Vidovich
Keyword(s):  
Radiation Dose ◽  
Interventional Cardiologist ◽  
Radiation Dose Exposure

scholarly journals COMPARISON OF EXPOSURE TO RADIATION DURING PERCUTANEOUS TRANSPEDICULAR PROCEDURES, USING THREE FLUOROSCOPIC TECHNIQUES

2017 ◽  
Vol 16 (2) ◽  
pp. 141-144
Author(s):  
Anderson Nascimento ◽  
Carlos Fernando Pereira da Silva Herrero ◽  
Helton Luiz Aparecido Defino ◽  
Marina Silva Magalhães Viana ◽  
João de Araújo ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Radiation Exposure ◽  
Real Time ◽  
Adult Male ◽  
Percutaneous Access ◽  
Radiation Dose Exposure ◽  
Fluoroscopic Imaging ◽  
Set Up

ABSTRACT Objective: To compare radiation exposure to the surgeon, patient and radiation technician during percutaneous access of the vertebral pedicle, using three different fluoroscopic imaging set up. Methods: Percutaneous access in pedicle T9-L5 of nine adult male cadavers using three different fluoroscopic set ups: standard C-arm, C-arm with L-arm, and the biplanar technique. The radiation dose exposure of the surgeon, radiation technician, and cadaver were measured using dosimeter in each procedure and in real time. Results: The radiation dose absorbed by the surgeon was higher when using the standard C-arm fluoroscopic technique than when using the C-arm with L-arm or the biplanar technique. Conclusions: The use of the C-arm with L-arm, or the biplanar fluoroscopic technique, for percutaneous access to the vertebral pedicle, reduces the radiation exposure of the surgeon compared to the standard C-arm fluoroscopic technique.

Sign in / Sign up

Export Citation Format

Share Document