English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Shark Imaging

Pohmann, R., & Gemballa, S. (2008). Shark Imaging. Magnetic Resonance Materials in Physics, Biology and Medicine, 21(Supplement 1): 168, 109.

Item is

Files

show Files

Locators

show
hide
Description:
-
OA-Status:

Creators

show
hide
 Creators:
Pohmann, R1, 2, Author           
Gemballa, S, Author
Affiliations:
1Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528700              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: of fishes is currently a field of intense, multidisciplinary research. Of special
interest are certain species of fish like tuna and several types of sharks
(thunniform swimmers), that have developped an especially effective way of
swimming and can reach velocities up to 70 km/h with only little movement
of the body. To understand the swimming mechanics of these fishes, a threedimensional
model of the muscle structure is required. While histologic
techniques are extremely time-consuming for the examination of these large
structures, MRI could reveal the inner muscle structures fast and without
damaging the sample.
Subjects and Methods: To investigate on the possibilities of examining the
muscle structure of sharks with MRI, a formalin-fixated zebra shark with a
length of 50 cm, and excised muscle tissue from a thresher shark were examined
in a human 3T scanner. The fish was positioned prone on the spine
coil. Since the goal was to differentiate between muscle and connective tissue,
which has a thickness in the order of 0.1 mm, highly resolved 3D-images
with a resolution of (0.4 mm)3 and a high SNR were acquired. Best contrast
and sufficient SNR was achieved with a 3D FLASH sequence with a TR of 15
ms and an echo time of 5.59 ms. 22 averages were taken with a matrix size of
1024×256×256 within 6 hours.
Results: The following figure shows a coronal slice through the entire shark.
Throughout the whole body, the connective tissue can clearly be identified as
dark lines in the brighter muscle tissue.

Details

show
hide
Language(s):
 Dates: 2008-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/s10334-008-0124-4
BibTex Citekey: 5333
 Degree: -

Event

show
hide
Title: ESMRMB 2008 Congress: 25th Annual Meeting
Place of Event: Valencia, Spain
Start-/End Date: 2008-10-02 - 2008-10-04

Legal Case

show

Project information

show

Source 1

show
hide
Title: Magnetic Resonance Materials in Physics, Biology and Medicine
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : No longer published by Elsevier
Pages: - Volume / Issue: 21 (Supplement 1) Sequence Number: 168 Start / End Page: 109 Identifier: ISSN: 0968-5243
CoNE: https://pure.mpg.de/cone/journals/resource/954926245532