Volume 1. No 2. 13.04.1994
Ragnar Granit Institute, P.O.Box 692, FIN-33101 Tampere, Finland
Editor: Jaakko Malmivuo, www.rgi.fi/persons/malmivuo/, ISSN: 1456-4343
Associate Professor of Medical Electronics
The post of Associate Professor of Medical Electronics has been open
for international applicants. Information about the post was announced
in Finland in the two leading newspapers (Helsingin Sanomat and Aamulehti).
Abroad the information was announced with about 100 telefax messages to colleagues,
institutes and societies in the field of biomedical engineering. Information was also
delivered through the electronic mail news system named "Electronic Information
Resource in Biomedical Engineering" sponsored by The Whitaker Foundation, U.S.A. T
his media was especially very fast, wide, and effective in delivering information all around the world.
The deadline for the applications was the 7th of April, 1994. There has been
wide interest in this post from Finland and from abroad and we have received
altogether 17 official applica tions, which are:
Additionally, one official application was made by a
Finnish person who wants to remain anonymous.
In addition to these 17 official applications, we have received
five informal applications from China, Colombia, The Netherlands and
USA only by telefax or electronic mail. These persons have not
indicated that they had sent an official application in mail before
the dead line even though they were encouraged to do so.
- Dunajski, Zbigniew, Ph.D.
University of Twente, The Netherlands
- Eskola, Hannu, Dr.Tech
Tampere University Hospital, Tampere
- Hyttinen, Jari, Lic.Tech
- Kimmel, Eitan, D.Sc.
Technion, Haifa, Israel
- Lekkala, Jukka, Dr.Tech
State Technical Research Cntr, Tampere
- Meister, Ants, Ph.D.
Tallinn Technical University, Estonia
- Nousiainen, Juha, Dr.Tech
- Ping-Ya, Zhao, Ph.D.
McMaster Univ, Ontario, Canada
- Pommelin, Petri, Lic.Tech,
- Reitmaa, Ilpo, Lic.Tech
- Sievšnen, Harri, Dr.Tech
UKK Institute, Tampere
- Struijk, Johannes, Ph.D.
University of Twente, The Netherlands
- Walker, Simon, Ph.D.
Imperial College, London
- Williams, Maini, Lic.Tech
Vaasa Technical College, Vaasa, Finland
- Xu, Zhenyao, Ph.D.
Hopital du Sacre-Coeur, Montreal, Canada
- Ylitalo, Juha, Dr.Tech
Oulu University, Oulu, Finland
Research Projects at the Ragnar Granit Institute:
This article starts a series of articles describing the research projects at our Institute.
The first project to be introduced is magnetocar diography, and especially the
diagnostic performance of MCG and ECG.
It is the purpose of this project to develop a magnetocardiographic recording method
for large number clinical applications. We have found, that the ECG and MCG signals
are not independent but the sensitivity distributions of these measurements are, if done correctly.
With the magnetic measurement method we obtain about the same amount of
information from the electric activity of the heart as with the electric method.
Therefore the diagnostic performance of the MCG is of about the same order
as that of the ECG. Because the sensitivity distributions of these measurement methods
are independent, the correctly diagnosed patient groups, though being about the same size, are not identical.
By combining the ECG and MCG to a new method called electromagnetocardiography,
EMCG, the aforementioned patient groups may be combined and the number of
incorrectly diagnosed patients may be decreased to one half. So large an increase
in the diagnostic perfor mance may be considered as a remarkable improvement
in clinical medicine. Such a result has not been obtained by any other research group in biomagnetism.
Because the heart is located deep inside the thorax it is not practical to model
with a higher order model than a magnetic dipole. As is very well known,
the corresponding model is in use in clinical ECG as well.
We have come to the conclusion that the instrument to be developed
for clinical MCG should be so cheap, that it would be competitive with
other diagnostic methods in the sense of acquired increase of diagnostic performance.
This result we can achieve with a device which does not need a
magnetically shielded room and which has a simple technical design.
Such a method and instrument we name "Large Number Application",
due to simple installation and cheap price it can be installed in a large number of hospitals.
We also believe, that with the Large Number Application philosophy
we can obtain more clinical information than with a "Large Scale Installation"
device, because "Large Number Application" instruments can be used by
larger number of research groups and with them a much larger number of
patients can be diagnosed.
The clinical diagnostic performance of the MCG has been investigated by
Dr. Tech Juha Nousiainen and MD Sakari Oja. The instrumen tation is developed by
Ph.D. Simon Walker and Lic. Tech Antti Rissanen. Also several other persons work on the project.
The principal investigator of the MCG- project is Prof. Jaakko Malmivuo.
Information Lecture on Biomedical Engineering Studies
The traditional Electrical Engineering Department's information lectures
for the second year students on electrical engineering studies will be given
on Thursday, 14.4. 1994, halls SA 201, 203 and 207. Ragnar Granit Institute
gives information on Biomedical Engineer ing Studies at 14.15 - 15.15 o'clock, hall SA 207.
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