Introducing a Cost-Effective Radiopaque Scale Design for Intra-Operative Use

2020 ◽  
Author(s):  
Roopam Dey ◽  
Giancarlo Beukes ◽  
Gokul Nair ◽  
Sudesh Sivarasu
Keyword(s):  
Contrast Agent ◽  
Low Dose ◽  
Low Cost ◽  
Cost Effective ◽  
The Body ◽  
X Ray ◽  
Iodinated Contrast ◽  
Iodinated Contrast Agent ◽  
Scale Design ◽  
Contrast Image

Abstract Radiopaque scales have numerous uses in the field of surgery, especially orthopaedic surgery. Scales of this nature can be used to guide surgeons by taking intra-operative measurements, pinpoint insertion points on bones and detect locations of deformations and tumours inside the body. Despite this, these scales are not used widely enough because of its high cost and that there are no widely acceptable ways of developing them from off the shelf materials. This paper details the method of inventing a novel low-cost radiopaque scale using off the shelf materials such as Barium Sulfate and Iodinated Contrast Agent (ICA). The radiopaque scale was manufactured using Perspex® and was filled with the contrast agents. The scales were then scanned using low-dose X-ray machines. The scale filled with Barium was found to be provide a better contrast image suggesting that the Barium to be a better high-contrast agent when compared to iodine and is recommended for use.

scholarly journals Applying Runthrough Guidewire To Transseptal Puncture Without Iodinated Contrast Agent

2022 ◽  
Author(s):  
Jinfeng wang ◽  
Ping Fang ◽  
Jichun Liu ◽  
Youquan Wei ◽  
Xianghai Wang ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Contrast Agent ◽  
Pericardial Tamponade ◽  
Transseptal Puncture ◽  
X Ray ◽  
Iodinated Contrast ◽  
Novel Approach ◽  
Total Procedure Time ◽  
Iodinated Contrast Agent ◽  
The Difference

Abstract Aims: Conventional transseptal puncture(TSP) relies on fluoroscopy and iodinated contrast agent to distinctly position the transseptal needle at the left atrium, however, there exists great challenges in clinic in patients with contrast hypersensitivity or allergy-like reactionsin the procedure. This study aimed to evaluate a novel approach to TSP assisted by Runthrough guidewire and fluoroscopy without use of iodinated contrast agent. Methods: Sixty patients with paroxysmal atrial fibrillation undergone radiofrequency catheter ablation were enrolled from February 2021 to October 2021, and randomised to routine TSP group and Runthrough guidewire assisted group. The two groups were compared regarding the total operative time, length of fluoroscopy exposure, difference of radiation dose in X-ray, and the safety was evaluated in the patients undergone TSP without iodinated contrast agent. Results: There were no differences in baseline demographics or clinical characteristics between the two groups. Although the total procedure time[(1.98±0.29) min vs.(2.11±0.14) min, P<0.04],length of fluoroscopic exposure [(1.83±0.30) vs.(1.98±0.14), P<0.19] and radiation dose in X-ray[(27.83±3.21) uGym2vs.(29.13±1.57) uGym2, P<0.30] were somewhat statistically different between groups, yet the difference was insignificant. No complications, including pericardial tamponade and aortic perforation, occurred in all patients. Conclusion: Iodine-free TSP under the guidance of Runthrough guidewire and fluoroscopy can be a simple, safe, economical and effective approach to TSP, and may be reproduced as a novel option for TSP in patients with contrast hypersensitivity or allergy-like reactions.

Biodistribution of X-Ray Iodinated Contrast Agent in Nano-Emulsions Is Controlled by the Chemical Nature of the Oily Core

ACS Nano ◽  
2014 ◽  
Vol 8 (10) ◽  
pp. 10537-10550 ◽  
Author(s):  
Mohamed F. Attia ◽  
Nicolas Anton ◽  
Manuela Chiper ◽  
Roman Akasov ◽  
Halina Anton ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Chemical Nature ◽  
X Ray ◽  
Iodinated Contrast ◽  
Iodinated Contrast Agent

Biodistribution and Toxicity of X-Ray Iodinated Contrast Agent in Nano-emulsions in Function of Their Size

2015 ◽  
Vol 33 (3) ◽  
pp. 603-614 ◽  
Author(s):  
Mohamed F. Attia ◽  
Nicolas Anton ◽  
Roman Akasov ◽  
Manuela Chiper ◽  
Elena Markvicheva ◽  
...  
Keyword(s):  
Contrast Agent ◽  
X Ray ◽  
Iodinated Contrast ◽  
Iodinated Contrast Agent

Physiology of Intraluminal Administration of Carbon Dioxide as a Contrast Medium

2020 ◽  
Vol 25 (44) ◽  
pp. 4656-4661 ◽  
Author(s):  
Nikolaos Patelis ◽  
Mikes Doulaptsis ◽  
Stylianos Kykalos ◽  
Eleftherios Spartalis ◽  
Anastasios Maskanakis ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Contrast Agent ◽  
20Th Century ◽  
English Literature ◽  
Human Organism ◽  
Digital Subtraction ◽  
Extensive Search ◽  
Iodinated Contrast ◽  
Iodinated Contrast Agent ◽  
Carbon Dioxide Co2

Background: Carbon dioxide (CO2) exists in nature around us. In the middle of the 20th century, the intraluminal injection of CO2 demonstrated similar results to those of Digital Subtraction Angiography (DSA) with an iodinated contrast agent (ICA). Since then, the technology behind CO2 DSA has developed significantly. Objective: The aim of this study is to inform physicians about the unique properties of CO2 and its physiology after intraluminal injection. Methods: An extensive search for English literature on the properties of CO2 and the physiology of intraluminal administration was conducted using Pubmed. Results: There is sufficient literature on the properties of CO2 and the physiology of CO2 DSA. A review of this literature explains what happens to the human organism after the injection of CO2. Conclusions: There is enough evidence that CO2 DSA is both effective, diagnostic and safe, but the properties of CO2 should be taken under consideration as complications occur, although rarely.

The Production of Reduced Graphene Oxide by a Low-Cost Vacuum System for Supercapacitor Applications

2018 ◽  
Vol 930 ◽  
pp. 609-612
Author(s):  
Quezia Cardoso ◽  
Franks Martins Silva ◽  
Ligia Silverio Vieira ◽  
Julio Cesar Serafim Casini ◽  
Solange Kazume Sakata ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Large Scale ◽  
Low Cost ◽  
High Vacuum ◽  
Cost Effective ◽  
Practical Method ◽  
Raw Material ◽  
Vacuum System ◽  
X Ray ◽  
Pump Pressure

Graphene has attracted significant interest because of its excellent electrical properties. However, a practical method for producing graphene on a large scale is yet to be developed. Graphene oxide (GO) can be partially reduced to graphene-like sheets by removing the oxygen-containing groups and recovering the conjugated structure. GO can be produced using inexpensive graphite as the raw material via cost-effective chemical methods. High vacuum and temperature (10−7 mbar and 1100°C, respectively) conditions are well-known to enable the preparation of reduced powder at the laboratory scale. However, a large-scale high vacuum reduction system that can be routinely operated at 10−7 mbar requires considerable initial capital as well as substantial operational and maintenance costs. The current study aims at developing an inexpensive method for the large-scale reduction of graphene oxide. A stainless steel vessel was evacuated to backing-pump pressure (10−2 mbar) and used to process GO at a range of temperatures. The reduction of GO powder at low vacuum pressures was attempted and investigated by X-ray diffraction and Fourier transform infrared spectroscopy. The experimental results of processing GO powder at various temperatures (200–1000°C) at relatively low pressures are reported. The microstructures of the processed materials were investigated using scanning electron microscopy and chemical microanalyses via energy dispersive X-ray analysis.

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