434
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
Fig. 5.43 Dependence A s spectrum skewness on surface blood flow change at functional states of
skin: a—normal; b—inflatable cuff pumping; c—cross-clamping; d—cuff removal; e—blood flow
recovery. Reprinted from [87] with permission
Fig. 5.44 Dependence of Q parameter on surface blood flow change at functional states of skin: a—
normal; b—inflatable cuff pumping; c—cross-clamping; d—cuff removal; e—blood flow recovery.
Reprinted from [87] with permission
(Fig. 5.45) was scanned with the receiving–illuminating head of the laser specklometer. And the suggested informative parameters f , μ, Q and A s were registered,
which reflect the state of the blood flow.
The scanned area of skin is presented in Fig. 5.45. The scanning step was 10 mm.
Then, artificial hyperemia was provoked through rubbing in of the special ointment
“Finalgon” on the studied areas of skin with coordinates bb, bd, cb, cd, db, dc, dd.
And measurements of the informative parameters were conducted according to the
mentioned method.
Distributions of quantities of parameters μ, f , Q and A s on the studied area of
the skin are presented in Fig. 5.46.
It is worth mentioning that an increase of parameters f , μ and Q and decrease
of parameter A s occur on the areas with artificially provoked hyperemia. Quantity of
changes of the informative parameters depends considerably on skin hyperemia, i.e.,
on the state of microhemodynamics of skin on the given area. The parameter Q has
the greatest sensitivity of skin that can be connected with multidirectional character
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
Fig. 5.43 Dependence A s spectrum skewness on surface blood flow change at functional states of
skin: a—normal; b—inflatable cuff pumping; c—cross-clamping; d—cuff removal; e—blood flow
recovery. Reprinted from [87] with permission
Fig. 5.44 Dependence of Q parameter on surface blood flow change at functional states of skin: a—
normal; b—inflatable cuff pumping; c—cross-clamping; d—cuff removal; e—blood flow recovery.
Reprinted from [87] with permission
(Fig. 5.45) was scanned with the receiving–illuminating head of the laser specklometer. And the suggested informative parameters f , μ, Q and A s were registered,
which reflect the state of the blood flow.
The scanned area of skin is presented in Fig. 5.45. The scanning step was 10 mm.
Then, artificial hyperemia was provoked through rubbing in of the special ointment
“Finalgon” on the studied areas of skin with coordinates bb, bd, cb, cd, db, dc, dd.
And measurements of the informative parameters were conducted according to the
mentioned method.
Distributions of quantities of parameters μ, f , Q and A s on the studied area of
the skin are presented in Fig. 5.46.
It is worth mentioning that an increase of parameters f , μ and Q and decrease
of parameter A s occur on the areas with artificially provoked hyperemia. Quantity of
changes of the informative parameters depends considerably on skin hyperemia, i.e.,
on the state of microhemodynamics of skin on the given area. The parameter Q has
the greatest sensitivity of skin that can be connected with multidirectional character