Related Experiment Video
Updated: Nov 12, 2025
08:05
Occlusion of the Great and Small Saphenous Vein Using Copolymeric Glue Based on N-Butyl Cyanoacrylate and Methacryloxy Sulfolane
Published on: December 9, 2022
4.6K
Classification of chronic venous diseases based on skin temperature patterns
Stephan Dahlmanns1, Stefanie Reich-Schupke2, Franziska Schollemann3
1Chair for Medical Information Technology, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen D-52074, Germany.
Physiological Measurement
|March 18, 2021
Summary
Infrared thermography can detect distinct skin temperature patterns in chronic venous diseases (CVD). These thermal signatures aid in classifying CVD severity and identifying venous leg ulcers, improving diagnostic capabilities.
Area of Science:
- Medical Imaging
- Dermatology
- Vascular Medicine
Background:
- Chronic venous diseases (CVD) classification lacks objective thermal insights.
- Infrared thermography (IRT) shows potential for CVD assessment.
- Need for sophisticated analysis linking skin temperature to CVD severity.
Purpose of the Study:
- Identify distinct lower leg temperature patterns in CVD patients.
- Correlate thermal features with specific CVD forms, including ulcers.
- Develop IRT-based rules for objective CVD classification.
Main Methods:
- Clinical trial with 36 CVD patients.
- Acquisition of infrared images.
- Region segmentation and analysis of seven thermal features.
- Development of classification rules based on prominent thermal features.
Main Results:
- Mild CVD: local skin temperature increase >1.5 °C.
- Severe CVD: affected regions 2.0 °C warmer.
- Venous leg ulcers: internal temperature variations of ~0.4 °C.
- Ulcers were 1.1 °C–6.3 °C colder than surrounding skin.
Conclusions:
- Distinct temperature patterns, varying by millimeters, correlate with CVD stages.
- These patterns are indicative of varicose veins and tissue damage.
- IRT offers a potential complementary tool for objective CVD classification and early detection.
Related Concept Videos
01:27Assessment of the Cardiovascular System III: Palpation
672
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
672
01:26Varicose Veins I: Introduction
71
Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
71
01:26Varicose Veins II: Diagnostic Studies and Interprofessional Care
67
Varicose veins, or varicosities, develop when the valves in the veins, which control blood flow, weaken or damage. It causes blood to pool and the veins to enlarge. Understanding the clinical manifestations, diagnostic approaches, and management options for varicose veins is crucial for effective treatment and relief.Clinical manifestationsClinical manifestations of varicose veins include a heavy, achy feeling or pain after prolonged standing or sitting. This discomfort can often be relieved by...
67
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
109
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
109
01:30Venous Thrombosis I: Introduction
111
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
111
01:30Venous Thrombosis IV: Nursing Management
79
Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
79