Design and experimental evaluation of an automated catheter operating system

Autor: Ibrahim Abdulhafiz, Anas Mahdi, Farrokh Janabi-Sharifi, Somayeh Norouzi-Ghazbi, Taha Abbasi-Hashemi, Ali Mehrkish
Rok vydání: 2021
Předmět:
Zdroj: Artificial Organs. 45
ISSN: 1525-1594
0160-564X
DOI: 10.1111/aor.13870
Popis: Manual catheter-based interventions (CBIs) suffers from exposure of the interventionalists to x-ray, and dependency of their performance on the expertise and fatigue level of the interventionalists. Robot-assisted catheterization systems (RACS) have been introduced in recent years to improve the efficiency of CBIs; however, using them is still associated with some difficulties such as set-up dependency to a specific type of intervention instrument, not being portable, and offering limited options of operation modes. The objective of this research is to develop a new RACS to address these shortcomings. We propose Althea II as an improvement for our previously introduced RACS, Althea I. Althea II is designed for both research purposes and clinical applications including catheter-based cardiovascular interventions. Althea II benefits from a novel structural design leading to a significantly reduced weight and making the device inclusive for a broader range of intervention instruments. Also, a tip detection algorithm is developed and integrated into the graphical user interface (GUI) to enable image-based navigation, and accordingly, fully automatic navigation. Althea II has improved the outcome of catheter-based interventions by increased accuracy and precision of the intervention. The system can navigate the catheter tip to a designated target with an accuracy higher than 90% in both velocity and positioning mode. The device is associated with an upgraded GUI equipped with a strong tip detection algorithm with an accuracy of 0.05 mm. Moreover, Althea II gains from a quicker assembly-time (20 minutes, which equals five times faster). The independency from specific catheters, several modes of function, an imaged based feedback control, portability, and a remote function should allow operation even from beginners and reduce x-ray exposure. The preliminary research studies verified the accuracy and repeatability of Althea II, demonstrated the feasibility and applicability of using the set-up in multiple applications, and highlighted the set-up improved capabilities over the currently available RACS.
Databáze: OpenAIRE
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