Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Portrait Of A Diseased Heart Instead Of ECG

17.03.2006


Everybody who underwent a cardiogram at least once knows that the procedure is not quick in all respects. First, the patient has to undress, lie down and wait till a number of sensors are attached to him/her. But this is half the trouble. The obtained ECG is to be interpreted, that is to be determined how the heart works according to the waves recorded on the cardiograph tape. This is not done by the nurse who recorded the ECG, but by the medical specialist and probably within several days only. Any cardiologist will diagnose, for example, preinfarction angina and especially infarct, but ischemic heart disease, particularly at its early stages, would not be “caught” via ECG even by a more experienced cardiologist. Additional examinations will be needed, probably in a hospital. As a result, the time will be missed, and it will be much more difficult to cope with the disease.



It is evident that software is the most important thing in the new device, as it allows to get the information necessary for diagnosing based on the signals that were previously considered “murmur”. These weak signals turned out to be also manifestation of myocardium work, however they are much harder to record and especially to interpret than evident electrocardiographic waves with a large amplitude. Nevertheless, this is possible if the task is entrusted to the computer with a special software loaded in it. Certainly, to do this, a computer model of the heart will be needed, which the authors also succeeded to create.

In order for the computer to know what signals are to be considered standard, and which ones – a pathology, the computer was initially taught for a long time. The researchers recorded ECGs of knowingly healthy people and those of patients with precisely proved diagnoses to reveal the difference and analyze the findings. The task is labour-intensive, but it was worth it, because reliability of diagnostics with the help of the device, which was developed in the long run, reaches 75 to 85 percent, and it should be noted that this is applicable to complicated cases when an ordinary cardiograph is practically useless.


Strange as it may seem, the procedure becomes simpler for the patient regardless of the high complexity of the device. There is no need for undressing and lying down – the sensors are needed only on hands and feet. The patient will have to sit with sensors attached to him/her for a couple of minutes only, during which the cardiovisor will record the signal, decode it and show the results on the computer display. That will be a colored portrait of the heart, where a healthy heart is depicted in grey and green colors, but the areas of pathologies – in pinky-red or yellow colors depending on the disease.

In addition to the portrait, the device can give out the automatic conclusion where it would indicate to what extent cardiac work indices deviate from the standard. As a result, within several minutes the physician will get the opportunity to reveal, for instance, ischemic heart disease when it is only being developed secretly. Having gained strength, the disease can upset the person’s habitual rhythm of life or even take away the life itself. This would not happen if the cardiovisor is employed!

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Health and Medicine:

nachricht Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>