sound characterics of biological cells

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Laurent Souriau - 20 Feb 2004 22:41 GMT

Hi !

Could anyone indicate me the sound speed and density
of a biological cell ? and also the sound speed and density
of a cancerous cell ?

Or does anyone have a book title and author or a web site
where i coould find this information ?

Thank you for your help

Laurent Souriau
Email : lsouriau@free.fr

Reply to this Message

Wieslaw Bicz - 21 Feb 2004 19:47 GMT

> Could anyone indicate me the sound speed and density
> of a biological cell ? and also the sound speed and density
> of a cancerous cell ?
>
> Or does anyone have a book title and author or a web site
> where i coould find this information ?

If you put such words as "sound speed cancer" inb Google or other search machine, you will find some
hints. I have seen may be two papers dealing with this thematics, and may be I will be able to find
them.

There is a basic problem with the measurement of the sound speed in fragments of tissues: It is
necessary to measure small and local differencies and do it with high precision. This can be done
almost only with tomographic or holographic methods and this techniques are not very good developed.

There are many reason, allowing to assume, that sound speed and attenuation in cancerous tissues can
be different, than in normal tissues.

Wieslaw Bicz

---------------========== OPTEL sp. z o.o. ===========---------------
------===== R&D: Ultrasonic Technology/Fingerprint Recognition ====------
ul. Otwarta 10a PL 50-212 Wroclaw Tel.:+48 71 3296854 Fax.:+48 71 3296852
--------==== mailto:W.Bicz@optel.pl -=- http://www.optel.pl ====-------

Reply to this Message

Charles F. Gaumond - 24 Feb 2004 13:43 GMT

I thought that cancerous tissues were firmer than their neighboring tissues.
I thought that this is why a lump can be felt; the lump has a higher shear
modulus than the surrounding tissue. This would imply a different shear
speed rather than different longitudinal speed.

I don't mean to imply that the longitudinal speed is not different because I
think that it is. I just thought that the shear characteristics differed
much more, which is the reason for the interest in elastography.

> > Could anyone indicate me the sound speed and density
> > of a biological cell ? and also the sound speed and density
[quoted text clipped - 20 lines]
> ul. Otwarta 10a PL 50-212 Wroclaw Tel.:+48 71 3296854 Fax.:+48 71 3296852
> --------==== mailto:W.Bicz@optel.pl -=- http://www.optel.pl ====-------

Reply to this Message

Natural Science Forum / Physics / Acoustics / February 2004

sound characterics of biological cells