TW201509373A - Infrared thermal image system and method for analyzing influence factors for free flap surface temperature - Google Patents

Infrared thermal image system and method for analyzing influence factors for free flap surface temperature Download PDF

Info

Publication number
TW201509373A
TW201509373A TW102132946A TW102132946A TW201509373A TW 201509373 A TW201509373 A TW 201509373A TW 102132946 A TW102132946 A TW 102132946A TW 102132946 A TW102132946 A TW 102132946A TW 201509373 A TW201509373 A TW 201509373A
Authority
TW
Taiwan
Prior art keywords
temperature
surface temperature
infrared thermal
free flap
flap
Prior art date
Application number
TW102132946A
Other languages
Chinese (zh)
Other versions
TWI507172B (en
Inventor
Cherng-Kang Perng
O Chang
Original Assignee
United Integrated Services Co Ltd
Cherng-Kang Perng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Integrated Services Co Ltd, Cherng-Kang Perng filed Critical United Integrated Services Co Ltd
Priority to TW102132946A priority Critical patent/TWI507172B/en
Publication of TW201509373A publication Critical patent/TW201509373A/en
Application granted granted Critical
Publication of TWI507172B publication Critical patent/TWI507172B/en

Links

Abstract

This invention relates to an infrared thermal image system and a method for analyzing influence factors for free flap surface temperature, comprising: using an infrared thermal imager to obtain a measured surface temperature of an organism's free flap; further obtaining the core temperature and the ambient temperature of the organism; performing thermal conduction and thermal convection calculation for the core temperature and the ambient temperature to generate a predicted surface temperature; and according to the closeness of the predicted surface temperature and the measured surface temperature, determining whether factors influencing the free flap surface temperature has changed, which is acted as the basis for compensation and correction, thereby increasing the correctness of using the free flap surface temperature acquired by the infrared thermal imager as the reference index.

Description

紅外線熱影像系統及其分析自由皮瓣表面溫度影響因素的方法 Infrared thermal imaging system and method for analyzing factors affecting free surface temperature of flap

本發明係關於一種自由皮瓣表面溫度的監控方法及系統,尤指一種以紅外線熱影像取得自由皮瓣表面溫度,並針對影響表面溫度的各種因素進行分析,作為校正補償依據的相關技術。 The invention relates to a method and a system for monitoring the surface temperature of a free flap, in particular to a method for obtaining a free flap surface temperature by infrared thermal imaging and analyzing various factors affecting the surface temperature as a basis for correcting the compensation.

「自由皮瓣手術」經常用於重建手術,例如口腔癌患者手術後的顏面重建。所謂的「自由皮瓣手術」是將患者身上某部份的組織連同其血管一併取下,再將取下的組織移植到患者身上缺乏組織覆蓋的傷口上,由於組織連同血管一併取下,因而必須配合醫療級顯微鏡進行精密的血管縫合。由於血管細密,經縫合後必須嚴密觀察,以確認移植的自由皮瓣組織是否出現血管栓塞的情況。 "Free flap surgery" is often used in reconstructive surgery, such as facial reconstruction after surgery in patients with oral cancer. The so-called "free flap surgery" is to take a part of the patient's tissue together with its blood vessels, and then transplant the removed tissue to the wound on the patient's body that lacks tissue coverage, because the tissue is removed together with the blood vessels. Therefore, precise vascular sutures must be performed in conjunction with medical grade microscopes. Due to the fineness of the blood vessels, it must be closely observed after suturing to confirm whether the transplanted free flap tissue has vascular embolism.

以往自由皮瓣的血管栓塞監控,主要是依賴資深醫護人員透過監看自由皮瓣表面的顏色變化來作判斷,然而前述人工監看,除了必須仰賴豐富的臨床經驗外,在判斷標準上也可能失之主觀。 In the past, the monitoring of vascular embolization of free flaps relied mainly on senior medical staff to judge the color change of the free flap surface. However, the above-mentioned manual monitoring, in addition to relying on rich clinical experience, may also be judged in the judgment standard. Lost subjective.

為了使自由皮瓣的血管栓塞情況能被有效且客觀的監控,許多技術相繼地投入運用,例如近紅外光譜儀、雷射都卜勒微流儀、彩色都卜勒超音波和植入式都卜 勒監視器等。 In order to enable effective and objective monitoring of the vascular embolization of free flaps, many techniques have been put into use, such as near-infrared spectrometers, laser Doppler microfluidics, color Doppler ultrasound, and implantables. Le monitors, etc.

另外,利用表面溫度監控也被用來判斷自由皮瓣是否出現血管栓塞,在已知研究中,如果自由皮瓣的表面溫度下降2.4℃係判斷自由皮瓣的動脈發生栓塞,下降2.6℃則判斷自由皮瓣的靜脈發生栓塞。另有根據表面溫度變化值(△T)來判斷栓塞的情況。但其表面溫度只由自由皮瓣上的單點取得,所得數據不夠全面客觀,以致影響其判斷的準確性,且自由皮瓣溫表面溫度除受栓塞因素影響外,亦受其他因素左右,若不能全面考慮其他因素的影響,將影響自由皮瓣表面溫度判讀的準確性。 In addition, the use of surface temperature monitoring is also used to determine whether the free flap has vascular embolism. In the known study, if the surface temperature of the free flap is lowered by 2.4 °C, the artery of the free flap is judged to be embolized, and the drop is 2.6 °C. The vein of the free flap is embolized. In addition, the embedding condition is judged based on the surface temperature change value (ΔT). However, the surface temperature is only obtained from a single point on the free flap. The data obtained are not comprehensive and objective, which affects the accuracy of the judgment. The temperature of the free flap surface is affected by embedding factors, and is also affected by other factors. The effects of other factors cannot be fully considered and will affect the accuracy of the interpretation of the free surface temperature of the flap.

由上述可知,既有自由皮瓣表面溫度的取得仍未盡周延,且取得表面溫度以做為指標的客觀性亦有不足,有待進一步檢討,並謀求可行的解決方案。 It can be seen from the above that the surface temperature of the free flap is still not fully extended, and the objectivity of obtaining the surface temperature as an index is also insufficient, and further review is needed, and a feasible solution is sought.

因此本發明主要目的在提供一種紅外線熱影像系統,主要是利用紅外線熱像儀實測自由皮瓣的表面溫度,配合一預測表面溫度的計算,與實測表面溫度進行比對,以分析影響自由皮瓣表面溫度的因素是否出現變化,並據以作為校正的依據,進而提升紅外線熱像儀取得自由皮瓣表面溫度作為參考指標的正確性。 Therefore, the main object of the present invention is to provide an infrared thermal imaging system, which mainly uses an infrared thermal imager to measure the surface temperature of a free flap, and calculates a predicted surface temperature to compare with the measured surface temperature to analyze the free flap. Whether the surface temperature factor changes and is used as a basis for correction, thereby improving the accuracy of the infrared thermal imager to obtain the surface temperature of the free flap as a reference index.

為達成前述目的採取的主要技術手段係令前述紅外線熱影像系統包括:一紅外線影像擷取單元,用以擷取一自由皮瓣的紅外線熱影像;一室溫感測單元,用以感測自由皮瓣所在的環境室溫; 一核心溫度感測單元,用以感測自由皮瓣母體的體溫;一控制單元,分別與前述紅外線影像擷取單元、室溫感測單元、核心溫度感測單元電連接,根據紅外線影像擷取單元輸入的紅外線熱影像取得一實測表面溫度,根據室溫感測單元、核心溫度感測單元輸入的室溫、核心溫度運算產生一預測表面溫度,並對實測表面溫度與預測表面溫度進行運算;一顯示單元,與前述控制單元電連接,以顯示前述控制單元輸出的自由皮瓣紅外線熱影像及實測表面溫度與預測表面溫度的運算結果。 The main technical means for achieving the foregoing objective is that the infrared thermal imaging system comprises: an infrared image capturing unit for capturing an infrared thermal image of a free flap; and a room temperature sensing unit for sensing freedom The ambient temperature at which the flap is located; a core temperature sensing unit for sensing the body temperature of the free flap parent; a control unit electrically connected to the infrared image capturing unit, the room temperature sensing unit, and the core temperature sensing unit, respectively, according to the infrared image capturing The infrared thermal image input by the unit obtains a measured surface temperature, and generates a predicted surface temperature according to the room temperature and core temperature input by the room temperature sensing unit and the core temperature sensing unit, and calculates the measured surface temperature and the predicted surface temperature; A display unit is electrically connected to the control unit to display a result of the free flap infrared thermal image output by the control unit and the measured surface temperature and the predicted surface temperature.

在前述系統中,是利用紅外線影像擷取單元取得自由皮瓣的一實測表面溫度,並分別取得室溫與核心溫度(體溫)產生一預測表面溫度,根據預測表面溫度接近實測表面溫度的程度,以分析實測表面溫度受室溫及母體體溫以外因素(皮瓣血流狀態)影響的程度,避免單純以實測表面溫度作為判斷依據所造成的誤差;主要係因自由皮瓣的表面溫度受室溫、核心溫度及皮瓣血流等因素影響,當實測表面溫度接近或等於預測表面溫度,表示實測表面溫度主要由室溫與核心溫度影響,皮瓣血流因素相對降低,若實測表面溫度高於預測表面溫度,表示實測表面溫度不但由室溫與核心溫度影響,也受皮瓣血流因素影響。而預測表面溫度以室溫及皮瓣母體核心溫度補償校正計算所得,不受室溫及皮瓣母體核心溫度波動影響,可提高紅外線熱像儀取得自由皮瓣表面溫度作為參考指標的正確性。 In the foregoing system, an infrared image capturing unit is used to obtain a measured surface temperature of the free flap, and respectively obtain a predicted surface temperature between the room temperature and the core temperature (body temperature), according to the degree to which the predicted surface temperature is close to the measured surface temperature, To analyze the measured surface temperature affected by the factors other than the room temperature and the parent body temperature (the blood flow state of the flap), avoid the error caused by the measured surface temperature alone; the main reason is that the surface temperature of the free flap is affected by the room temperature. , core temperature and blood flow of the flap, when the measured surface temperature is close to or equal to the predicted surface temperature, indicating that the measured surface temperature is mainly affected by the room temperature and the core temperature, the blood flow factor of the flap is relatively reduced, if the measured surface temperature is higher than The predicted surface temperature indicates that the measured surface temperature is affected not only by the room temperature and the core temperature, but also by the blood flow of the flap. The predicted surface temperature is calculated by the room temperature and the parent core temperature compensation correction. It is not affected by the room temperature and the core temperature fluctuation of the flap, which can improve the correctness of the free surface temperature of the infrared camera as a reference index.

本發明又一目的在提供一種紅外線熱像儀分 析自由皮瓣表面溫度影響因素的方法,其可對紅外線熱影像系統取得的自由皮瓣表面溫度作進一步分析,以提高取得自由皮瓣表面溫度作為參考指標的準確性。 Another object of the present invention is to provide an infrared camera The method of analyzing the factors affecting the surface temperature of the free flap can further analyze the surface temperature of the free flap obtained by the infrared thermal imaging system to improve the accuracy of obtaining the surface temperature of the free flap as a reference index.

為達成前述目的採取的主要技術手段係令前述方法包括以下步驟:取得一自由皮瓣的紅外線熱影像,據以提供一實測表面溫度;取得前述自由皮瓣所在環境的室溫;取得前述自由皮瓣的一核心溫度;根據室溫與自由皮瓣的核心溫度運算產生一預測表面溫度;當實測表面溫度接近預測表面溫度時,則產生一提示訊息。 The main technical means for achieving the foregoing objective is that the method comprises the steps of: obtaining an infrared thermal image of a free flap, thereby providing a measured surface temperature; obtaining a room temperature of the environment in which the free flap is located; obtaining the aforementioned free skin A core temperature of the valve; a predicted surface temperature is generated based on the room temperature and the core temperature of the free flap; and when the measured surface temperature is close to the predicted surface temperature, a prompt message is generated.

利用上述方法可根據預測表面溫度與實測表面溫度的接近狀況得知影響自由皮瓣表面溫度的因素是否出現變化,從而可作為補償校正實測表面溫度之依據,避免發生誤判情事。 The above method can be used to know whether the factor affecting the surface temperature of the free flap changes due to the close condition of the predicted surface temperature and the measured surface temperature, thereby serving as a basis for compensating for the corrected surface temperature to avoid misjudgment.

10‧‧‧控制單元 10‧‧‧Control unit

11‧‧‧紅外線影像擷取單元 11‧‧‧Infrared image capture unit

12‧‧‧室溫感測單元 12‧‧‧ room temperature sensing unit

13‧‧‧核心溫度感測單元 13‧‧‧ core temperature sensing unit

14‧‧‧顯示單元 14‧‧‧Display unit

15‧‧‧提示單元 15‧‧‧Cue unit

20‧‧‧自由皮瓣 20‧‧‧Free flap

21‧‧‧血管 21‧‧‧ blood vessels

圖1 係本發明一較佳實施例的系統架構示意圖。 1 is a schematic diagram of a system architecture of a preferred embodiment of the present invention.

圖2 係本發明又一較佳實施例的系統架構示意圖。 2 is a schematic diagram of a system architecture of still another preferred embodiment of the present invention.

圖3 係一自由皮瓣示意圖。 Figure 3 is a schematic diagram of a free flap.

圖4 係本發明的一實驗溫度曲線圖。 Figure 4 is an experimental temperature profile of the present invention.

圖5 係本發明的又一實驗溫度曲線圖。 Figure 5 is a further experimental temperature profile of the present invention.

圖6 係本發明的方法流程圖。 Figure 6 is a flow chart of the method of the present invention.

關於本發明紅外線熱影像系統的一較佳實施例,請參閱圖1所示,其包括一控制單元10、一紅外線影像擷取單元11、一室溫感測單元12、一核心溫度感測單元13及一顯示單元14;其中該紅外線影像擷取單元11與前述控制單元10電連接,是用以擷取一自由皮瓣的紅外線熱影像,並傳送至控制單元10;該室溫感測單元12用以感測自由皮瓣所在的環境室溫,其可由電子式或數位式溫度感測器構成,且與控制單元10電連接,用以提供自由皮瓣所在環境的室溫Tr給控制單元10;該核心溫度感測單元13用以感測自由皮瓣的母體體溫,亦即移植自由皮瓣的人體體溫;該核心溫度感測單元13可以是數位式體溫計,其與控制單元10電連接,用以提供一核心溫度Tc給控制單元10。 For a preferred embodiment of the infrared thermal imaging system of the present invention, please refer to FIG. 1 , which includes a control unit 10 , an infrared image capturing unit 11 , a room temperature sensing unit 12 , and a core temperature sensing unit. 13 and a display unit 14; wherein the infrared image capturing unit 11 is electrically connected to the control unit 10, and is used to capture an infrared thermal image of a free flap and transmitted to the control unit 10; the room temperature sensing unit 12 for sensing the ambient temperature of the free flap, which may be composed of an electronic or digital temperature sensor and electrically connected to the control unit 10 to provide a room temperature Tr of the environment in which the flap is free to the control unit The core temperature sensing unit 13 is configured to sense the body temperature of the free flap, that is, the human body temperature of the free flap; the core temperature sensing unit 13 can be a digital thermometer, which is electrically connected to the control unit 10. For providing a core temperature Tc to the control unit 10.

該控制單元10係作為運算中心,主要是根據紅外線影像擷取單元11輸入的紅外線熱影像取得一實測表面溫度,根據室溫感測單元、核心溫度感測單元輸入的室溫、核心溫度運算產生一預測表面溫度,並進一步運算實測表面溫度與預測表面溫度的接近程度。 The control unit 10 is used as a computing center, and mainly obtains a measured surface temperature according to the infrared thermal image input by the infrared image capturing unit 11, and is generated according to the room temperature and core temperature input by the room temperature sensing unit and the core temperature sensing unit. A predicted surface temperature is further calculated for the proximity of the measured surface temperature to the predicted surface temperature.

該顯示單元14可為液晶顯示器,或進一步設有觸控介面的平面顯示器,其與前述控制單元10電連接,用以顯示控制單元10輸出的自由皮瓣紅外線熱影像及實測表面溫度與預測表面溫度的運算結果。 The display unit 14 can be a liquid crystal display, or a flat display with a touch interface, and is electrically connected to the control unit 10 for displaying the free flap infrared thermal image output by the control unit 10 and the measured surface temperature and predicted surface. The result of the operation of the temperature.

請參閱圖2所示,係本發明紅外線熱影像系統的又一較佳實施例,其基本架構與前一實施例大致相同,不同處在於:進一步包括一提示單元15,該提示單元15與控制單元10電連接,其為視覺形式及/或聽覺形式,亦即可由顯示器、燈號及/或警報器構成,用以在自由皮瓣的實測表面溫度與預測表面溫度相同或差距小於一絕對值時,產生視覺及/或聽覺提示訊息。 Referring to FIG. 2, it is another preferred embodiment of the infrared thermal imaging system of the present invention. The basic architecture is substantially the same as that of the previous embodiment. The difference is that the method further includes a prompting unit 15, the prompting unit 15 and the control. The unit 10 is electrically connected, which is in a visual form and/or an audible form, and may also be constituted by a display, a signal and/or an alarm, for the same or a difference between the measured surface temperature of the free flap and the predicted surface temperature being less than an absolute value. A visual and/or audible alert message is generated.

關於前述紅外線熱影像系統的工作原理及控制方法,詳如以下所述:請參閱圖3所示,係一自由皮瓣20的示意圖,該自由皮瓣20的組織內有血管21(動脈、靜脈)通過,當自由皮瓣20移植到傷口處,並完成血管21接合後,此時自由皮瓣20的表面溫度會受以下數種因素影響: The working principle and control method of the infrared thermal imaging system described above are as follows: Referring to FIG. 3, a schematic diagram of a free flap 20 having a blood vessel 21 (artery, vein) in the tissue of the free flap 20 By passing, when the free flap 20 is transplanted to the wound and the blood vessel 21 is joined, the surface temperature of the free flap 20 is affected by the following factors:

1.血管21內的血液流動:因為通過血管21的血液會帶入熱量。 1. Blood flow in the blood vessel 21: heat is introduced into the blood passing through the blood vessel 21.

2.熱傳導Q1:自由皮瓣20移植後與母體接合,母體體溫(核心溫度Tc)與自由皮瓣20之間的熱傳導。 2. Heat conduction Q1: heat transfer between the parent body temperature (core temperature Tc) and the free flap 20 after the free flap 20 is grafted with the mother.

3.熱對流Q2:自由皮瓣20表面與空氣接觸而形成熱對流,故受室溫Tr影響。其中:熱傳導Q1與熱對流Q2的推導公式如下:Q1=kAL-1(Tc-Ts),其中Q2=hA(Ts-Tr) 3. Thermal convection Q2: The surface of the free flap 20 is in contact with air to form heat convection, so it is affected by the room temperature Tr. Where: the derivation formula of thermal conduction Q1 and thermal convection Q2 is as follows: Q1=kAL -1 (Tc-Ts), where Q2=hA(Ts-Tr)

k=皮瓣傳導常數,A=皮瓣表面積,L=皮瓣厚度 k = flap conduction constant, A = flap surface area, L = flap thickness

Tc=核心溫度,Ts=實測表面溫度,h=空氣對流常數 Tc = core temperature, Ts = measured surface temperature, h = air convection constant

Tr=室溫 Tr = room temperature

當自由皮瓣20的熱傳導Q1與熱對流Q2相同,則其表面溫度Ts會達於平衡,且與核心溫度Tc及室溫Tr存在一線性關係,故可推算一預測表面溫度Ts’,其關係式如下:Ts’=k(hL+k)-1Tc+hL(hL+k)-1Tr When the heat conduction Q1 of the free flap 20 is the same as the heat convection Q2, the surface temperature Ts will reach equilibrium, and there is a linear relationship with the core temperature Tc and the room temperature Tr, so a predicted surface temperature Ts' can be derived. The formula is as follows: Ts'=k(hL+k) -1 Tc+hL(hL+k) -1 Tr

根據實驗與統計結果,前述關係式可進一步為Ts’=0.66 Tc+0.40 Tr According to experimental and statistical results, the above relationship can be further Ts'=0.66 Tc+0.40 Tr

根據上述關係式,控制單元10在取得室溫Tr與核心溫度Tc後所運算產生的預測表面溫度Ts’並不考慮血液通過血管21時帶入的熱量,因此當血管21血流增加時,實測表面溫度Ts會高於預測表面溫度Ts’。但當血管21血流減少時,經由血液帶入熱量也減少,則實測表面溫度Ts會接近或等於預測表面溫度Ts’。 According to the above relationship, the predicted surface temperature Ts' generated after the control unit 10 calculates the room temperature Tr and the core temperature Tc does not take into account the heat carried in when the blood passes through the blood vessel 21, so when the blood flow of the blood vessel 21 increases, the actual measurement is performed. The surface temperature Ts is higher than the predicted surface temperature Ts'. However, when the blood flow of the blood vessel 21 is reduced, the amount of heat introduced through the blood is also reduced, and the measured surface temperature Ts is close to or equal to the predicted surface temperature Ts'.

請參閱圖4所示,為動物實驗的對照組溫度曲線,第一道曲線L1為控制組曲線(不作皮瓣血流降低處理),第二道曲線L2是核心溫度Tc,第三道曲線L3是進行血流降低處理的實測表面溫度Ts,第四道曲線L4為室溫Tr的變化。 Please refer to FIG. 4, which is the control temperature curve of the animal experiment. The first curve L1 is the control group curve (no flap blood flow reduction treatment), the second curve L2 is the core temperature Tc, and the third curve L3 It is the measured surface temperature Ts of the blood flow reduction process, and the fourth curve L4 is the change of the room temperature Tr.

實驗中是在時間點A將動物的自由皮瓣血管夾住,從曲線L3可以看出,在夾住血管阻止血液通過後,其實測表面溫度Ts即開始下降,俟下降至一溫度後則維持於該溫度;接著在時間點B解除對血管的夾持,則可看出實測表面溫度Ts又開始回升。由此可看出自由皮瓣表面溫度與其血管血流降低之間的關係。 In the experiment, the free flap blood vessels of the animal were clamped at time point A. It can be seen from the curve L3 that after the blood vessels are clamped to block the passage of blood, the surface temperature Ts begins to decrease, and the temperature is maintained after the temperature drops to a temperature. At this temperature; then, at the time point B, the clamping of the blood vessel is released, and it can be seen that the measured surface temperature Ts starts to rise again. This shows the relationship between the surface temperature of the free flap and the decrease in blood flow to the blood vessels.

又請參閱圖5所示,為另一動物實驗的對照組 溫度曲線,同樣在時間點A將動物的自由皮瓣血管夾住,在時間點B解除。然而由曲線L3可以看出,實測表面溫度Ts並未隨著血管被夾住之後開始下降,反而有持續上升的趨勢,而在放開血管後亦持續上升。上述的情況並不代表自由皮瓣表面溫度與其血管血流降低之間的關係被否定,而是反應出室溫Tr與核心溫度Tc對實測表面溫度Ts的影響。 Please also refer to Figure 5 for a control group of another animal experiment. The temperature curve, also at the time point A, clamped the free flap of the animal and was relieved at time B. However, as can be seen from the curve L3, the measured surface temperature Ts does not start to decrease as the blood vessel is clamped, but has a tendency to continue to rise, and continues to rise after the blood vessel is released. The above situation does not mean that the relationship between the surface temperature of the free flap and the decrease in blood flow of the blood vessel is denied, but the influence of the room temperature Tr and the core temperature Tc on the measured surface temperature Ts is reflected.

由曲線L2可以看出核心溫度Tc在試驗過程中有逐漸升高的趨勢(例如因母體發燒造成),而且室溫Tr也升高。受前述兩溫度因素的影響,以致實測表面溫度Ts並未隨血管血流降低而下降。由此可見單純利用表面溫度的變化,並無法完全準確判斷自由皮瓣的血管血流是否降低。因此本發明進一步根據室溫、核心溫度產生一預測表面溫度,利用預測表面溫度與實測表面溫度的分析比對,來判斷影響實測表面溫度的因素是否出現變化,進而排除不具代表性的實測表面溫度。意即本發明具有校正補償的效果,主要原理是因本發明提供的預測表面溫度Ts’是根據室溫Tr、核心溫度Tc與相關參數所產生,當室溫Tr、核心溫度Tc改變,預測表面溫度Ts’隨之改變,若自由皮瓣的實測表面溫度Ts與預測表面溫度Ts’相同或差距小於一絕對值時,表示實測表面溫度Ts主要受室溫及核心溫度影響,受皮瓣血流影響較小。一旦室溫、核心溫度有明顯的波動,實測表面溫度可能隨之波動而不具代表性,需要予以校正。 It can be seen from the curve L2 that the core temperature Tc gradually increases during the test (for example, due to maternal fever), and the room temperature Tr also rises. Under the influence of the above two temperature factors, the measured surface temperature Ts does not decrease as the blood flow of the blood vessel decreases. It can be seen that the simple use of the change in surface temperature does not completely determine whether the blood flow of the free flap is reduced. Therefore, the present invention further generates a predicted surface temperature according to the room temperature and the core temperature, and uses the analytical comparison between the predicted surface temperature and the measured surface temperature to determine whether the factor affecting the measured surface temperature changes, thereby eliminating the unrepresentative measured surface temperature. . That is, the present invention has the effect of correcting compensation. The main principle is that the predicted surface temperature Ts' provided by the present invention is generated according to the room temperature Tr, the core temperature Tc and related parameters, and when the room temperature Tr, the core temperature Tc changes, the predicted surface The temperature Ts' changes accordingly. If the measured surface temperature Ts of the free flap is the same as the predicted surface temperature Ts' or the difference is less than an absolute value, it indicates that the measured surface temperature Ts is mainly affected by the room temperature and the core temperature, and the flap blood flow is affected. Less affected. Once the room temperature and core temperature fluctuate significantly, the measured surface temperature may fluctuate without being representative and needs to be corrected.

根據上述紅外線熱影像系統的工作原理可 知,本發明的方法係如圖6所示,包括以下步驟:取得一自由皮瓣的紅外線熱影像,據以提供一實測表面溫度Ts(601);取得前述自由皮瓣所在環境的室溫Tr(602);取得前述自由皮瓣的一核心溫度Tc(603);根據室溫Tr與自由皮瓣的核心溫度Tc運算產生一預測表面溫度Ts’(604);當實測表面溫度Ts接近預測表面溫度Ts’時,即產生一提示訊息(605)。 According to the working principle of the above infrared thermal imaging system The method of the present invention is as shown in FIG. 6 and includes the steps of: obtaining an infrared thermal image of a free flap, thereby providing a measured surface temperature Ts (601); obtaining a room temperature Tr of the environment in which the free flap is located. (602); obtaining a core temperature Tc (603) of the free flap; generating a predicted surface temperature Ts' (604) according to the room temperature Tr and the core temperature Tc of the free flap; when the measured surface temperature Ts is close to the predicted surface At the temperature Ts', a prompt message (605) is generated.

因此,使用者可由前述提示訊息的提醒,瞭解影響實測表面溫度的因素是否產生變化,從而作為補償校正實測表面溫度作為判斷指標的依據。 Therefore, the user can know whether the factor affecting the measured surface temperature changes due to the reminder of the above prompt message, and thus serves as a basis for compensating the corrected measured surface temperature as a judgment index.

10‧‧‧控制單元 10‧‧‧Control unit

11‧‧‧紅外線影像擷取單元 11‧‧‧Infrared image capture unit

12‧‧‧室溫感測單元 12‧‧‧ room temperature sensing unit

13‧‧‧核心溫度感測單元 13‧‧‧ core temperature sensing unit

14‧‧‧顯示單元 14‧‧‧Display unit

15‧‧‧提示單元 15‧‧‧Cue unit

Claims (10)

一種紅外線熱影像系統分析自由皮瓣表面溫度影響因素的方法,是在一紅外線熱影像系統中執行以下步驟:取得一自由皮瓣的紅外線熱影像,據以提供一實測表面溫度;取得前述自由皮瓣所在環境的室溫;取得前述自由皮瓣的一核心溫度;根據室溫與自由皮瓣的核心溫度運算產生一預測表面溫度;當實測表面溫度接近預測表面溫度時,產生一提示訊息。 An infrared thermal imaging system for analyzing a factor affecting the surface temperature of a free flap is to perform the following steps in an infrared thermal imaging system: obtaining an infrared thermal image of a free flap, thereby providing a measured surface temperature; obtaining the aforementioned free skin The room temperature of the environment in which the valve is located; a core temperature of the free flap is obtained; a predicted surface temperature is generated according to the room temperature and the core temperature of the free flap; and a prompt message is generated when the measured surface temperature is close to the predicted surface temperature. 如請求項1所述紅外線熱影像系統分析自由皮瓣表面溫度影響因素的方法,該預測表面溫度根據下式取得:Ts’=k(hL+k)-1Tc+hL(hL+k)-1Tr,其中Ts’=預測表面溫度,k=皮瓣傳導常數,L=皮瓣厚度Tc=核心溫度,Ts=實測表面溫度,h=空氣對流常數Tr=室溫。 The infrared thermal imaging system according to claim 1 analyzes a factor affecting the surface temperature of the free flap, and the predicted surface temperature is obtained according to the following formula: Ts'=k(hL+k) -1 Tc+hL(hL+k) - 1 Tr, where Ts' = predicted surface temperature, k = flap conduction constant, L = flap thickness Tc = core temperature, Ts = measured surface temperature, h = air convection constant Tr = room temperature. 如請求項2所述紅外線熱影像系統分析自由皮瓣表面溫度影響因素的方法,所稱實測表面溫度接近預測表面溫度是指相同或差距小於一絕對值。 The method for analyzing the influence factors of the free surface temperature of the flap according to the infrared thermal imaging system described in claim 2, wherein the measured surface temperature is close to the predicted surface temperature means that the same or the difference is less than an absolute value. 一種紅外線熱影像系統,包括:一紅外線影像擷取單元,用以擷取一自由皮瓣的紅外線熱影像;一室溫感測單元,用以感測自由皮瓣所在的環境室溫;一核心溫度感測單元,用以感測自由皮瓣母體的體溫; 一控制單元,分別與前述紅外線影像擷取單元、室溫感測單元、核心溫度感測單元電連接,根據紅外線影像擷取單元輸入的紅外線熱影像取得一實測表面溫度,根據室溫感測單元、核心溫度感測單元輸入的室溫、核心溫度運算產生一預測表面溫度,並對實測表面溫度與預測表面溫度進行運算;一顯示單元,與前述控制單元電連接,以顯示前述控制單元輸出的自由皮瓣紅外線熱影像及運算結果。 An infrared thermal imaging system includes: an infrared image capturing unit for capturing an infrared thermal image of a free flap; a room temperature sensing unit for sensing an ambient temperature at which the free flap is located; a core a temperature sensing unit for sensing a body temperature of the free flap parent; a control unit is respectively electrically connected to the infrared image capturing unit, the room temperature sensing unit, and the core temperature sensing unit, and obtains a measured surface temperature according to the infrared thermal image input by the infrared image capturing unit, according to the room temperature sensing unit. The room temperature and core temperature calculation input by the core temperature sensing unit generates a predicted surface temperature, and calculates the measured surface temperature and the predicted surface temperature; a display unit is electrically connected with the foregoing control unit to display the output of the foregoing control unit. Free flap infrared thermal image and calculation results. 如請求項4所述的紅外線熱影像系統,該室溫感測單元是由一溫度感測器構成。 The infrared thermal imaging system of claim 4, wherein the room temperature sensing unit is constituted by a temperature sensor. 如請求項4所述的紅外線熱影像系統,該核心溫度感測單元是由一溫度感測器構成。 The infrared thermal imaging system according to claim 4, wherein the core temperature sensing unit is constituted by a temperature sensor. 如請求項4所述的紅外線熱影像系統,該顯示單元是由一液晶顯示器構成。 The infrared thermal imaging system according to claim 4, wherein the display unit is constituted by a liquid crystal display. 如請求項7所述的紅外線熱影像系統,該顯示單元具有一觸控介面。 The infrared thermal imaging system of claim 7, wherein the display unit has a touch interface. 如請求項4至8中任一項所述的紅外線熱影像系統,該控制單元進一步連接一提示單元。 The infrared thermal imaging system according to any one of claims 4 to 8, wherein the control unit is further connected to a prompting unit. 如請求項9所述的紅外線熱影像系統,該提示單元為視覺形式及/或聽覺形式警報器。 The infrared thermal imaging system of claim 9, wherein the prompting unit is a visual form and/or an audible form alarm.
TW102132946A 2013-09-12 2013-09-12 Infrared thermal imaging system and its analysis of factors affecting the surface temperature of free flaps TWI507172B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW102132946A TWI507172B (en) 2013-09-12 2013-09-12 Infrared thermal imaging system and its analysis of factors affecting the surface temperature of free flaps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW102132946A TWI507172B (en) 2013-09-12 2013-09-12 Infrared thermal imaging system and its analysis of factors affecting the surface temperature of free flaps

Publications (2)

Publication Number Publication Date
TW201509373A true TW201509373A (en) 2015-03-16
TWI507172B TWI507172B (en) 2015-11-11

Family

ID=53186467

Family Applications (1)

Application Number Title Priority Date Filing Date
TW102132946A TWI507172B (en) 2013-09-12 2013-09-12 Infrared thermal imaging system and its analysis of factors affecting the surface temperature of free flaps

Country Status (1)

Country Link
TW (1) TWI507172B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104958062A (en) * 2015-05-04 2015-10-07 中国人民解放军第三军医大学第一附属医院 Array type infrared thermal imager and application of array type infrared thermal imager to identifying ischemic stroke and hemorrhagic stroke at early stage
TWI617281B (en) * 2017-01-12 2018-03-11 財團法人工業技術研究院 Method and system for analyzing wound status
CN110260991A (en) * 2019-06-06 2019-09-20 武汉高德智感科技有限公司 A kind of method and device of adaptive acquisition temperature drift compensation data amount

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20105928A0 (en) * 2010-09-06 2010-09-06 Thermidas Oy Thermography method and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104958062A (en) * 2015-05-04 2015-10-07 中国人民解放军第三军医大学第一附属医院 Array type infrared thermal imager and application of array type infrared thermal imager to identifying ischemic stroke and hemorrhagic stroke at early stage
CN104958062B (en) * 2015-05-04 2018-06-08 中国人民解放军第三军医大学第一附属医院 Array infrared thermography and its application in Early Identification Ischemic Stroke and hemorrhagic apoplexy
TWI617281B (en) * 2017-01-12 2018-03-11 財團法人工業技術研究院 Method and system for analyzing wound status
US10083508B2 (en) 2017-01-12 2018-09-25 Industrial Technology Research Institute Method and system for analyzing wound status
CN110260991A (en) * 2019-06-06 2019-09-20 武汉高德智感科技有限公司 A kind of method and device of adaptive acquisition temperature drift compensation data amount

Also Published As

Publication number Publication date
TWI507172B (en) 2015-11-11

Similar Documents

Publication Publication Date Title
US11903684B2 (en) Blood pressure measuring apparatus and blood pressure measuring method
JP6235943B2 (en) Blood pressure measurement system
JP2015527132A5 (en)
US9962094B2 (en) Vascular endothelial function inspection apparatus
AU2015226833B2 (en) Method and system for determining intracranial pressure
WO2010014467A2 (en) Cerebral vascular reactivity monitoring
MX2020005042A (en) System for monitoring patients suffering from respiratory disease comprising a portable medical device and method based on the use of such system.
JP2018510683A5 (en)
TWI507172B (en) Infrared thermal imaging system and its analysis of factors affecting the surface temperature of free flaps
US10058286B2 (en) Biological information monitoring apparatus
US20140316291A1 (en) Measurement device, evaluating method, and evaluation program
JP2004004091A (en) Method and device for measuring blood gas parameter
CN104434031B (en) Thermal infrared image system and method for analyzing surface temperature influence factors of free flaps
Drake-Brockman et al. Monitoring temperature in children undergoing anaesthesia: a comparison of methods
Rok et al. Thermographic assessment of skin prick tests in comparison with the routine evaluation methods
WO2012032215A1 (en) Thermography method and system
Takahashi et al. Validation of the OMRON M6 Comfort (HEM-7321-E) upper arm blood pressure monitor, in oscillometry mode, for clinic use and self measurement in a general population, according to the European Society of Hypertension International Protocol revision. 2010
RU2013109085A (en) METHOD AND DEVICE FOR NON-INVASIVE BLOOD GLUCOSE CONTROL
US20140243691A1 (en) Measurement device, index calculating method, and index calculating program
Yang et al. Point-of-care testing of portable blood coagulation detectors using optical sensors
Lee et al. Analysis for calibration pre-post difference in BP estimation of Galaxy Watch
JP2016059755A (en) Intracranial pressure measuring apparatus
TWM543673U (en) Non-contact infrared body temperature measurement system
Balestrieri et al. Calibration of automated non invasive blood pressure measurement devices
RU2543293C2 (en) Individual's physiological parameters control device