Infrared thermal imaging and Doppler vessel pressurization ultrasonography to detect lower extremity deep vein thrombosis: Diagnostic accuracy study

Deng, Fangge; Tang, Qing; Jiang, Mei; Zhong, Nanshan; Liu, Guanghua

doi:10.1111/crj.12639

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…Furthermore, the human skin with an emissivity value of 0.98, is a near‐ideal radiator in the infrared domain 16 . In this regard, there is emerging literature on the utility of IRT for detection of peripheral arterial disease (PAD), deep vein thrombosis (DVT), diabetic vasculopathy and neuropathy, posttraumatic acute compartment syndrome, and other vascular diseases 20,23–33 . Multiple studies have also demonstrated a good correlation between IRT and other established diagnostic tools, such as ankle‐brachial index for diagnosis of PAD and Doppler ultrasound for DVT.…”

Section: Discussionmentioning

confidence: 99%

Infrared thermography as an adjunctive tool for detection of femoral arterial thrombosis after cardiac catheterization: A prospective, pilot study

Kang

Manojlovich

Mrozcek

et al. 2022

Cathet Cardio Intervent

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Objectives: To assess the utility of infrared thermography (IRT), to map skin temperature, in the detection of femoral arterial (FA) thrombosis after cardiac catheterization.Background: Ultrasound is a validated method for thrombus detection but is generally reserved as a confirmatory test for clinical suspicion due to various constraints.Methods: Prospective study of infants and children undergoing cardiac catheterization via FA access, comparing IRT and pulse examination. The thermograms, displayed in a color map with each pixel representing a temperature, were examined by qualitative assessment of symmetry in thermal patterns and quantitative image analysis with abnormal thermographic asymmetry defined as a difference of >10% between limbs. Results:In the 20 children enrolled, excellent agreement was found between the two methods with a Kappa value of 0.89. The median thermographic asymmetry in the nine children with pulse loss was 36 (13-76)%. Using receiver operating characteristic analysis, the asymmetrical pattern of ≥18% between limbs predicted the need for anticoagulation with a sensitivity of 100% and specificity of 89%. The area under the curve was 0.97 (95% confidence interval: 0.95-1). Children with absent pulse requiring anticoagulation showed a slower recovery in thermal asymmetry compared to those with a reduced pulse. By qualitative IRT assessment, all children with absent pulse requiring anticoagulation were correctly identified by 10 independent assessors.Conclusions: This pilot study showed that IRT is feasible and reliable as an adjunctive tool for thrombus detection postcatheterization and treatment monitoring. Specific advantages of IRT include portability, affordability, and contactless image acquisition.

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Section: Discussionmentioning

confidence: 99%

Infrared thermography as an adjunctive tool for detection of femoral arterial thrombosis after cardiac catheterization: A prospective, pilot study

Kang

Manojlovich

Mrozcek

et al. 2022

Cathet Cardio Intervent

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“…In order to further verify the clinical value of infrared thermal imaging, this method was compared with Doppler compression ultrasonography in terms of deep vein thrombosis [31]. The results revealed the sensitivity at the level of 88.3%, the specificity of 65.0%, and a diagnostic accordance rate of 75.0%.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Dry Carbon Dioxide Bathing on Peripheral Blood Circulation Measured by Thermal Imaging among Patients with Risk Factors of PAD

Zbroja

Kowalski

Lubkowska

2021

IJERPH

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Peripheral artery disease (PAD) is becoming a serious health problem of present times. It appears crucial to explore therapies that might help to restore blood flow or increase tissue oxygenation. The most effective methods of detecting early-stage changes in blood circulation in the extremities need to be identified. The aim of this study was to identify the effect of carbon dioxide (CO2) bathing on peripheral blood circulation measured by thermal imaging among patients with risk factors of PAD and ankle–brachial index (ABI) in the normal range or ABI indicating some or moderate arterial disease (ABI > 0.5). The correlation between surface temperature change and PAD-relevant characteristics was also examined. Forty-six patients who were over 65 years old who had a minimum of two additional PAD risk factors were recruited. A series of ten dry CO2 baths was performed. Thermal images were taken before and after the intervention. The CO2 therapy caused a significant change in the body surface temperature of many body areas. Numerous moderate correlations between temperature change and health-related characteristics were identified. Therefore, patients with PAD risk factors could benefit from CO2 therapy. Improvements in blood flow change the body surface temperature, and these changes could be successfully detected by thermal imaging.

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“…Through non-invasive imaging of venous vessels and their surrounding tissues, dynamic blood circulation of venous vascular tissues can be observed to determine the location and severity of DVT. According to relevant data, the accuracy of colour Doppler ultrasound in the diagnosis of DVT is more than 75% [31]. The incidence of postoperative DVT was 62.96% in the control group and 14.81% in the observation group.…”

Section: Popliteal Vein Embolizationmentioning

confidence: 99%

Effect of Low Molecular Weight Heparin on Prevention and Treatment of Deep Venous Thrombosis in Elderly Patients With Hip Fracture After Operation

HU¹

2022

FARMACIA

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The aim of this research was to investigate the preventive and therapeutic effects of low molecular weight heparin (LMWH) on postoperative deep venous thrombosis (DVT) in elderly patients with hip fracture, and to explore its mechanism of action and safety. Fifty-four elderly patients with hip fractures admitted to the hospital were randomly divided into a treatment group and a control group (27 cases for each group). The treatment group was subcutaneously injected with LMWH while the control group did not receive LMWH. The visual analogue scale (VAS) score of the control group was significantly increased compared with the treatment group at 4 and 7 days after the operation. Haemoglobin level (HGB) and platelet (PLT) count in the control group were significantly increased compared with the treatment group at 7 days after the operation. The D-dimer level in the control group was significantly increased compared with the treatment group on days 4 and 7 after the operation. The postoperative drainage volume in the control group was significantly increased compared with the treatment group. The incidence of postoperative deep venous thrombosis (DVT) in the control group (62.96%) was significantly increased compared with the treatment group (14.81%). The results showed that the use of LMWH in elderly patients with hip fracture after the operation could significantly reduce the pain of the affected limb, reduce the plasma Ddimer content, inhibit PLT proliferation, promote HGB recovery, and reduce postoperative drainage volume, with high safety. RezumatScopul acestei cercetări a fost evaluarea efectelor preventive și curative ale heparinei cu greutate moleculară mică (HBPM) asupra trombozei venoase profunde (TVP) postoperatorie la pacienții vârstnici cu fractură de șold și de a explora mecanismul său de acțiune și siguranță. Cincizeci și patru de pacienți vârstnici cu fracturi de șold internați în spital au fost împărțiți aleatoriu într-un grup de tratament și un grup de control (27 de cazuri pentru fiecare grup). Grupului de tratament i-a fost administrată subcutanat HBPM, în timp ce grupul de control nu a primit HBPM. Scorul scalei analog vizuală (VAS) al grupului de control a fost semnificativ crescut în comparație cu grupul de tratament la 4 și 7 zile după operație. Nivelul hemoglobinei (HGB) și numărul de trombocite (PLT) în grupul de control au fost semnificativ crescute în comparație cu grupul de tratament, la 7 zile după operație. Nivelul D-dimerului în grupul de control a fost semnificativ crescut în comparație cu grupul de tratament în zilele 4 și 7 după operație. Volumul de drenaj postoperator în grupul de control a fost semnificativ crescut în comparație cu grupul de tratament. Incidența trombozei venoase profunde (TVP) postoperatorie în grupul de control (62,96%) a fost semnificativ crescută comparativ cu grupul de tratament (14,81%). Rezultatele au arătat că utilizarea după operație a HBPM la pacienții vârstnici cu fractură de șold ar reduce semnificativ durerea membrului afectat și conținutul plasmatic de...

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Infrared thermal imaging and Doppler vessel pressurization ultrasonography to detect lower extremity deep vein thrombosis: Diagnostic accuracy study

Abstract: IRTI could be used to supplement CPUS detection for detecting DVTs and adjunctive diagnostic screening.

Cited by 7 publications

References 21 publications

Infrared thermography as an adjunctive tool for detection of femoral arterial thrombosis after cardiac catheterization: A prospective, pilot study

Infrared thermography as an adjunctive tool for detection of femoral arterial thrombosis after cardiac catheterization: A prospective, pilot study

The Effect of Dry Carbon Dioxide Bathing on Peripheral Blood Circulation Measured by Thermal Imaging among Patients with Risk Factors of PAD

Effect of Low Molecular Weight Heparin on Prevention and Treatment of Deep Venous Thrombosis in Elderly Patients With Hip Fracture After Operation

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