In a message dated 99-12-27 08:41:01 EST, soderbergstefan@hotmail.com writes:
<< I'm a electrical/medical engineering-student and I'm doing a study about
what has been done and what can be done with rapid prototyping in cardiology
and thorax surgury.
Does anybody know where I can get information about this topic, whos working
with it, what they have done, etc.
>>
Hi Stefan:
Here are a couple of leads:
Title: 3D computer modeling of human cardiogenesis
Author: Pentecost, Jeffrey O. Icardo, Jose. Thornburg, Kent L. Institution
Oregon Health Sciences Univ, Portland, OR, USA
Source: Computerized Medical Imaging & Graphics. v 23 n 1 Jan-Feb 1999. p
45-49.
Abstract: We obtained digitized histological serial sections of three human
embryos of different stages from the Armed Forces Institute of Pathology from
which contours of cardiac structures were digitally traced. Traces were
placed in register for the construction of wire frame models using Silicon
Graphics Incorporated 3D computer modeling software (Alias/Wavefront) and for
surface rendering to demonstrate internal and external developmental anatomy.
The models allowed stage-to-stage morphing and physical model construction
using stereolithography. These innovations in embryo reconstructions not only
facilitate medical education, they also serve as new tools for scientific
investigation of cardiogenesis and congenital heart disease. (Author
abstract) [References: 5]
XX
Title: Development of a custom designed TAH using rapid prototyping
Author: Park, Chan Y. Chang, Jun K. Jeong, Dae Y. Yoon, Gul J. Chung,
Chanil. Kim, Joong K. Han, Dong C. Min, Byoung G. Institution Seoul Natl
Univ, Seoul, S Korea
Source: ASAIO Journal. v 43 n 5 Sep-Oct 1997. p M647-M650.
Abstract: The failure of the orthotopic implantation of a totally implantable
artificial heart (TAH) was due mainly to anatomic mismatches in the conduits
of the conventional TAH system. To overcome this anatomic incompatibility, a
custom design and fabrication process was designed using the rapid
prototyping (RP) technique. After three dimensional reconstruction of
magnetic resonance imaging of the thoracic cavity and vascular remnants of
the recipient, study of anatomic fit was done using the reconstructed
thoracic model and three dimensional computer aided design (CAD) model. The
direction of the inflow and outflow conduits of the blood sac was changed
with a Unigraphics CAD. The RP model of the designed chamber was fabricated
and examined for anatomic compatibility. Through this approach, the minute
directional mismatch of the inflow and outflow conduits was improved. Thus, a
new custom designed moving actuator Korean TAH with CAD and RP techniques was
developed. (Author abstract) [References: 6]
XX
Most RP applications in surgery have been confined to orthopaedics and
planning up to now. Some of the papers about planning might discuss thoracic
work, but that's not mentioned in the abstracts. Advanced RP techniques have
strong implications for complex tissue replacement, especially things like
heart valves, etc.
Hope this helps.
Ed
Ed Grenda
Castle Island Co.
19 Pondview Road
Arlington, MA 02474 USA
781-646-6280 (voice or fax)
EdGrenda@aol.com (email)
http://home.att.net/~castleisland/
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