Comparing static and dynamic mode for medical thermography

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Dynamic and Static mode in medical thermal image

In thermography, we have the choice to observe the moment, in static, the evolution or provoque ourselves the chance, that's the dynamic mode.

Dynamic mode request a broad experience in order to master the consequences of the stimulation and their limits. It requests too to catch the desired instant because dynamic is by definition fugace...

A lot of things can be observe, the change voluntary provoqued or the fall back to normality, evolution or new equiliar point.

Observation of the change itself

At left, original situation, static mode, inverted gray palette.

At right, dynamic observation after subject kept in her hands a gel coolpack at a temperature of around 10°C during 3 minutes.

Quality of image is completely changing and patterns are now well sharp. Of course first image allows already to analyze the situation but second is clearly easier to interprete and this finally remove minor points from the observation.

In some case, this is the only way to reveal an infection or illness who's quite discrete without this kind of protocol.

Post-observation, the restore to the "normality"

Material is here the same, a classical coolpack containing gel with a temperature of around 10°C, kept in hand during 30 seconds.

One major point is coolpack must absolutely be dry!! That's the Reason why we don't use simply water, to avoid the effect of water on skin who will poluting the observation, covering it in fact.

This protocol can replace an heavy examination with echography combinated with Larsen. the aim is studying the global vascularization by checking restoration time and his level on the hand after a cooling.

Source of the protocol: Dual-mode Imaging of CutaneousTissue Oxygenation and Vascular Function

Protocol case with static cold and hot stimulation

We will here use gel pouches to avoid to wet the skin with a temperature of around 5°C during 2 minutes, a little pause and next using a massaging device.

Which conclusion could we have after this experiment?

An excessive stimulation can cover what we want study

A stimulation can help to normalize what we observe same if the scene is polluted, a stimulation can refresh the situation

Cold allow a physilogical response who permit to observe where reaction are not normal

Hot stimulation is used with great success, in stimulation because static hot encourage body lazyness

We see that stimulation have a very long impact on body meaning too to be use with case and a good mastering of the consequences The most impressive lesson seems that 10 minutes of stimulation impactsthe hand nearby one hour later.