These are images taken with a thermal (3 -5 micron wavelength) IR camera.

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<a href = "TIRI.D/daniel2L.gif">
This image</a> and <a href = "TIRI.D/danielsL.gif"> this image</a> are two views of a 78 y.o. f with ulcerations on L great toe. Infection to toe is obvious, with exudate and "purple" skin. Inflammation spreading halfway up calf is visible only in IR. Presence of spread prompted use of IV antibiotics.
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<a href = "TIRI.D/flexL.gif"> Arm of a healthy volunteer (nurse) showing veins
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<a href = "TIRI.D/grahamL.gif">
Hand of a healthy volunteer (Graham Snyder) after R arm is occluded for 90 seconds with a cuff. Cooling of R finger tips is apparent. It should be noted that both veneous return as well as arterial feed are occluded by the cuff. In the presence of arterial occlusion without veneous block, cooling should be faster.
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<a href = "TIRI.D/coadL.gif"> Minor MVA pt. hands and arms same temp. bilaterally.</a>
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<a href = "TIRI.D/mvaShldr2L.gif"> Minor MVA, shoulder pain, no obvious temperature differences</a>
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<a href = "TIRI.D/osteoL.gif">
Pain in L knee. Initial Dx was osteoarthritis. After IR showed entire lower leg warm, Diffential changed to possible osteomiolytis.
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<a href = "TIRI.D/pear3L.gif">Hot spot distal to R knee</a>, possible (uncomfirmed to date) DVT.
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<a href = "TIRI.D/IVeinL.gif">
IV line with room temperature saline. path of fluid obvious under skin.
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<a href="TIRI.D/arm3R.gif"> Fracture of R ulna and radius</a>;
open radial fracture. Skin near wound is cold due to drying blood. (note line of fresh blood from wound). two fingers also cold due to drying blood. Thumb, upper arm, back of hand all same temp suggests no arterial occlusion. Note L hand of pt. is cold; probably due to neurogenic shock? with inflammatory response in injured arm?
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Victim of a possible fracture of R tibula. cold spots in 
<a href = "TIRI.D/aubreR.gif">this image</a>
 are due to ice pack. X-ray determination was no fracture, no arterial occlusion, possible sprain. <a href = "TIRI.D/aub2L.gif"> This image</a>
suggests that no sprain exists, as no inflammatory response is evident in IR.
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Minor MVA. <a href = "TIRI.D/brusieR.gif">Hematoma</a> on Rt lower extremity just distal to knee. Hematoma was obvious. However, the hot spot on L knee was not noticed until IR study was performed.
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Pt. with history of <a href = "TIRI.D/cxx2L.gif">peripheral vascular disease</a>. Probably embolus to R lower ext. Foot is room temperature or lower. 
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<a href = "TIRI.D/coadL.gif">Minor MVA victim.</a> Some pain in L shoulder. Arms warm due to recently raising the shirt. Normal IR image.
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<a href = "TIRI.D/code7L.gif">Trauma code</a>. Bicycle vs auto. Multiple fractured ribs, hemothorax, subarachnoid bleeding, shock. Hand/arms bilateraly cold.