Biomedical Engineering

Aim of the research project is to produce the coronary angiography computer based learning system.

 

Coronary Angiography Computer-based Learning System

 

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ჩვენი ლოგო

Learning procedure of coronary angiography for the beginner specialists is associated with several difficulties. Development of the practical skills can only be achieved by performing many coronary angiography procedures on real patients without any assistance from supervisor doctors.
In order to achieve the required level in methodology it is necessary to perform big numbers of procedures. It is only after that the doctor can perform the coronary angiography independently. As we have mentioned earlier, these studies are performed on real patient and are always accompanied with various types of difficulties, and that is especially true for the beginner specialists. It is vital for the upcoming specialists to learn the succession steps in angiography procedure, to get used in manipulating the catheters and other instruments used during the procedure, to monitor and control the live images acquired during radiography. Therefore, there is a need to be able to make the right decisions quickly according to medical situation. It is also of a very big importance to strive and reduce the examination time in order to avoid receiving the overtopped doses of radiation for patients as well as for the doctors.
Considering all the above mentioned, implementation of the coronary angiography learning computer-based system has a great interest and aims to benefit the starting specialists. The system will be able to help the young specialists to gain and/or improve the practical skills of angiography before they will start performing the procedures on real patients. Besides that, it will give them the opportunity to consolidate already acquired knowledge.
Angiography instrument pack (catheters, syringes, manifold, etc) used in real angiography procedures will be exploited in the learning process. Catheters will be injected and guided in specialized patient module. Special sensor systems will detect the catheter movement, rotation and its positions in the patient module. Digital signals received from the patient module will be transferred to software package. Software will then illustrate the catheter image and its movement in the patient module on the personal PC monitor in flash animation format.
Anim ation will provide us information of catheter movement that will be very close to the behaviour of the catheter in real patients. Therefore, software package will be able to illustrate random anatomical variation of the arteries (Femoral artery, Aorta, coronary arteries) on the monitors screen.
After placing the catheter in the hole of the virtual coronary, it will be possible to attach the syringe to the catheter and inject the fluid in the patient module in order to imitate the contrast media injection phase. Possibility of aspiration of blood-like fluid from the patient module will also be integrated in the system. Appropriate sensor systems will transfer the information about the volume and the speed of injected contrast media to software. Injection of the consrast media will be followed by the visualisation of coronary arteries on the monitor screen in animated mode. Software will produce different variants of coronary arteries configuration randomly. As in real angiography procedures, after visualisation of one coronary artery, the operator will change the catheter and will insert another catheter that will be suited for another coronary artery and will perform the virtual procedure.
Computer-based learning system will provide an opportunity to perform the studies virtually from left/right femoral as well as radial arteries. System will also provide an opportunity to perform aortography and ventriculography using the pigtail catheters. Various configurations of coronary arteries will be integrated in the sotware package (Difficult form of arteries, different anomalies, etc) in order to accommodate the real situations where complex manipulation of catheters are required from the perform ing doctors. Different types and the sizes of catheters that are most frequently used in angiographic examinations maybe exploited in learning process (JL, JR, MPA, Amplatz L, Amplatz R, Pigtail).
Improper manipulation of the catheter may lead to acute complications of patient`s health. In order to accommodate this type of situation, learning system will be equipped with the option to imitate the virtual complications during the procedure (Coronary dissection, ventricle fibrillation, gas embolisation and so on). Random complications during the procedures on patient module will require urgent counterblasts from the performing doctor, so that they can somehow get used to an above mentioned situations.
Young and starting specialists will have an opportunity to acquire the practical skills used in coronary angiography procedures before they will proceed to real patients. This type of computer based learning system is highly demandable throughout the university clinics and research centers, which gives appreciable economic potential to this project.

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