NCT06834555

Mobile Phone Thermal Imaging Assessment of Incompetent Perforator Veins

Not yet recruiting NA Last updated 19 February 2025

What this trial tests

NA trial testing Mobile phone thermal imaging in Chronic Venous Disease in 100 participants. Not yet recruiting.

Timeline

1 March 2025

Primary endpoint
1 December 2025

1 December 2025

Quick facts

Lead sponsor	Guangdong Second Provincial General Hospital
Phase	NA
Status	Not yet recruiting
Study type	INTERVENTIONAL
Allocation	na
Design	single group
Masking	none
Primary purpose	diagnostic
Enrollment	100
Start date	1 March 2025
Primary completion	1 December 2025
Estimated completion	1 December 2025

Drugs / interventions tested

• Mobile phone thermal imaging

Conditions studied

• Chronic Venous Disease — all drugs for Chronic Venous Disease →

Sponsor

Guangdong Second Provincial General Hospital

Who can join

Eligibility, any sex, with Chronic Venous Disease. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Chronic venous disease is a common disease of the lower limbs. Severe CVD can lead to lower limb swelling, pigmentation, and repeated skin ulceration, which seriously affects patients' quality of life. About 10.5% to 92.7% of CVD patients with recurrent varicose veins had insufficient perforating veins. Treatment of these IPVs can promote venous ulcer healing and reduce the recurrence rate of venous ulcers. Accurate assessment and positioning of insufficient perforating veins in the lower leg is a key step in developing a personalized treatment strategy. At present, Color Doppler ultrasonography performed in the upright position in combination with the Valsalva maneuver or local pressure of the limb is regarded as the "gold standard" for the diagnosis of perforating veins insufficiency. However, in China, a large number of perforating veins insufficiency are diagnosed by venography. Because the majority of Chinese vascular surgeons are not versatile in vascular ultrasound examination and venous ultrasound protocols vary from institution to institution. A non-functioning valve in an insufficient perforated vein allows blood to flow retrograde from a deep vein to a superficial vein. Some researchers have shown that the venous blood temperature of deep veins is higher than that of superficial veins. Thus, the retrograde flow of "warm blood" from the deep vein to the superficial vein increases the skin temperature located on the insufficient perforated vein. This study tested the feasibility of a smartphone and its compatible portable thermal imaging device as a tool for assessing insufficient perforated vein. The objective is to study the sensitivity and specificity of smartphone thermal imaging in diagnosing and locating the insufficient perforated vein in CVD patients.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.