Research On The Value Of Infrared Thermal Imaging And Near Infrared Spectroscopy Monitoring Based On Osteofascial Compartment Syndrome Model

ObjectiveBased on the model of healthy people,the application value of infrared thermal imaging and near-infrared spectroscopy monitoring technology in osteofascial compartment syndrome is provided to provide a new method for early clinical diagnosis of osteofascial compartment syndrome..MethodProspective self-controlled study method.From April 2019 to June 2019,25 healthy volunteers were included as research objects.The experiment was reviewed by the Second Affiliated Hospital of Zhejiang University School of Medicine,and it complies with the requirements of ethical approval.The registration number is I2019-001-099.One side of the lower leg was randomly selected as the experimental group,and a model of pressure increase in the osteofascial chamber was established by using cuff compression.The opposite leg was used as the control group,and the indicators such as blood pressure,electrocardiogram,and pulse oxygen saturation were routinely monitored.The third generation FLIR ONE PRO thermal infrared thermal imager was used to monitor the thigh front surface,knee front surface,and foot of theexperimental group and control group when the calf was pressurized to 20,30,40,50,60,70,80 mm Hg.Temperature changes on the dorsal and toe surface;EGOS-600 A near-infrared spectrometer(Suzhou Aegean Biomedical Electronics Co.,Ltd.)was used to record the local tissue oxygen saturation index(TOI)of the calf in the experimental and control groups.),Changes in deoxyhemoglobin concentration(?CHb),changes in oxygen and hemoglobin concentration(? CHb O2),and changes in total hemoglobin concentration relative to the initial measured value(? Ct Hb,? Ct Hb = ? CHb +CHb O2).Result(1)General information: 25 healthy volunteers meeting the exclusion criteria,including 15 females and 10 males;average age(28 ± 4 years,average height(166.6± 6.5)cm,and average weight(62.0 ± 10.4))Kg;the calf circumference of the experimental group(36.4 ± 2.8)cm,the control group(36.3 ± 3.1)cm;the anterior fascia compartment thickness of the experimental group(2.80 ± 0.41)cm,and the control group(2.80 ± 0.35)cm;There is no statistical significance between the two groups(t = 0.117,0.000,P = 0.907,1.000).(2)Infrared thermal imaging monitoring indicators: the temperature of the anterior surface of the thigh,the anterior surface of the knee joint,and the anterior surface of the toe in the experimental group was controlled by 0,20,30,40,50,60,70,80 mm Hg in the calf.There was no significant difference between the two groups(P> 0.05).The temperature of the back of the foot in the experimental group was lower than that in the control group when the pressure was increased to 70 mm Hg(t = 2.286,P = 0.027).There was no statistical significance(P>0.05);the temperature of the anterior surface of the dorsum of the experimental group decreased with the increase of the degree of compression,and the difference was statistically significant within the group(F = 2.160,P = 0.039).The thigh-to-dorsal temperature difference in the experimental group was not statistically significant under different degrees of compression(P> 0.05);when the pressure was increased to 60 mm Hg,the thigh-toe temperature difference in the experimental group was significantlyhigher than that in the control group(t = 2.064,P = 0.047).(3)Near-infrared spectrum monitoring indicators: TOI in the experimental group was lower than that in the control group when the fascia was pressurized to 70-80 mm Hg(P <0.05);when the experimental group was pressurized to 20-80 mm Hg,the ? CHb O2 and ? Ct Hb indicators were obvious.It is lower than the control group(P <0.05);the ?CHb index of the experimental group is significantly lower than that of the control group when it is pressurized to 20-50 mm Hg(P <0.05),and the ?CHb is significantly higher than that of the control group when it is pressurized to 70-80 mm Hg.Statistical significance(P<0.05).ConclusionIn the model of healthy human osteofascial compartment syndrome,as the fascial compartment pressure gradually increases,some indicators of infrared thermal imaging and near-infrared spectroscopy will have statistically significant changes,and its clinical application value needs further Evaluation.