Abstract
BackgroundThe contrast power injector (CPI) is the gold standard method for injecting contrast with the pressure and flow needed to generate a satisfactory images during endovascular procedures, but it is an expensive tool, narrowing its wide-scale applications. One alternative is the manual injection (MI) method, but this does not generate the pressure required for adequate visualization of anatomy. It is therefore imperative to create an alternative low-cost method that is capable of producing high quality images.ObjectivesTo compare the injection parameters of a new mechanical device (Hand-Crank) created in a university hospital with the MI method and with the contrast power injector’s ideal values.MethodsA circulation phantom was constructed to simulate the pressure in the aorto-iliac territory and the injection parameters of the two methods were compared in a laboratory setting. Student’s t test and the Mann-Whitney test were used for statistical analysis. Three vascular surgery residents (the authors) performed the injections (each performed 9 tests using conventional manual injection and 9 tests using the Hand-Crank, totaling 54 injections).ResultsThere were statistical differences between the two methods (p<0.05) in total volume injected until maximum pressure was attained, pressure variation, maximum pressure, total injection time, and time to reach the maximum pressure.ConclusionsThe Hand-Crank can achieve higher maximum pressure, higher average flow, and lower injection time than the manual method. It is a simple, low-cost, and effective tool for enhancing injection parameters in an experimental setup. It could help to produce higher quality images in a clinical scenario.
Highlights
Precise deployment of endografts during endovascular aneurysm repair requires precise images of the landing zone showing anatomical features such as visceral aortic branches, proximal and distal aortic necks, and morphological characteristics of aneurysms.[1,2,3,4] The contrast power injector (CPI) is the gold standard method for injecting contrast with the pressure and flow needed to produce satisfactory images.[5]
The aim of this study is to present the results of laboratory tests of a new mechanical device, that we have named the Hand-Crank (HC), designed to facilitate contrast injection during angiograms in a simple, low-cost, and reproducible manner
The Hand-Crank was capable of generating higher pressure values, higher injection flow, and shorter injection time than the manual method
Summary
Precise deployment of endografts during endovascular aneurysm repair requires precise images of the landing zone showing anatomical features such as visceral aortic branches, proximal and distal aortic necks, and morphological characteristics of aneurysms.[1,2,3,4] The contrast power injector (CPI) is the gold standard method for injecting contrast with the pressure and flow needed to produce satisfactory images.[5]. It involves risk of hand injury and fatigue due to the force applied to the syringe In view of this situation, development of an alternative method capable of creating high quality images and less expensive than the contrast power injector is desirable. The contrast power injector (CPI) is the gold standard method for injecting contrast with the pressure and flow needed to generate a satisfactory images during endovascular procedures, but it is an expensive tool, narrowing its wide-scale applications. Objectives: To compare the injection parameters of a new mechanical device (Hand-Crank) created in a university hospital with the MI method and with the contrast power injector’s ideal values. Conclusions: The Hand-Crank can achieve higher maximum pressure, higher average flow, and lower injection time than the manual method It is a simple, low-cost, and effective tool for enhancing injection parameters in an experimental setup. It could help to produce higher quality images in a clinical scenario
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
