Compare Water Content of Muscle, Liver, Fat, Heart, Cartilage, Bone Marrow

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Discussion Overview

The discussion revolves around comparing the water content of various tissues, specifically muscle, liver, fat, heart, cartilage, and bone marrow. Participants explore the methods of measuring water content and the implications of these measurements in relation to spin-spin relaxation times (T2) in tissues.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant requests a ranking of water content in specific tissues and seeks a comparative table.
  • Another participant notes that water content can be described in various ways, including percent by weight of free and bound water, and emphasizes the variability in measurement methods and results.
  • A participant expresses interest in understanding why spin-spin relaxation T2 increases for the tissues in the order mentioned.
  • One response suggests that measuring water content may require personal experimentation, as handling tissues can affect moisture content.
  • It is mentioned that spin-spin T2 is a method used to measure moisture content, with a reference provided for further reading.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the water content values or the best methods for measurement, indicating that multiple competing views and uncertainties remain in the discussion.

Contextual Notes

There are limitations regarding the definitions and methods of measuring water content, as well as the potential influence of tissue handling on moisture content. The discussion does not resolve these complexities.

Who May Find This Useful

This discussion may be of interest to those studying tissue properties, medical imaging techniques, or anyone involved in experimental biology and biophysics.

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How would you rate the following in terms of water content:

muscle, liver, fat, heart, cartilage, bone marrow

and where could i find a table of comparison...?
 
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Water content is usually described in terms, depending on what source you're looking at, as percent by weight of free water, bound water (sometimes called water of hydration), or as fresh weight minus dry weight (Relative Water Content). Sometimes it expressed in terms of water potential - rate of water exchange between the medium and sample.
This list goes on...

The ways this is measured are many, and the results vary a lot. To my knowledge there is no "standard" value.

What exactly are you trying to do?
 
i'm trying to find out why the spin spin relaxation T2 increases for the tissues in that order
 

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