Thermal Imaging in Diagnostics of Chronic Ulcers and in Monitoring Healing of Chronic Ulcers

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-03-01

Study Completion Date

2028-12-31

Brief Summary

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Patients with chronic ulcer needing tertiary care referred to the Wound Center of Tampere University Hospital are invited to this study. Patients are treated according to standard treatment practices. The temperature of the lower limbs and ulcer area is measured during visits using the Thermidas Remote thermal imaging system, a CE-marked medical device for measuring and monitoring changes in skin surface temperature non-invasively. The measured temperatures and differences are compared in different ulcer aetiology groups and analyzed whether thermal imaging can be used to distinguish atypical ulcers from vascular ulcers.

Thermal imaging measurements and clinical examinations are repeated to the patients with atypical ulcers during follow-up visits. Monitoring of ulcers will continue until the ulcer has epithelized completely or for up to a year.

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Detailed Description

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4A: Patients with chronic ulcer i.e. venous, arterial or mixed ulcers or atypical (vasculitic or pyoderma gangraenosum) ulcers needing tertiary care referred to the Wound Center of Tampere University Hospital are invited to this study. Aim is to recruit about 20 patients of each group of ulcers. Patients are treated according to standard treatment practices. The temperature of the lower limbs and ulcer area is measured during visits in a standardized measuring environment from both limbs using the Thermidas Remote thermal imaging system (ThRemote 1.3.1, Remote SW with FLIR Inc's series T IR cameras, Thermidas Oy), a CE-marked medical device for measuring and monitoring changes in skin surface temperature non-invasively. The temperature of the ulcer area is compared with the temperature of the corresponding skin area of the other limb and the temperature difference (delta) of the areas is determined. The measured temperatures and differences are compared in different ulcer aetiology groups and analyzed whether thermal imaging can be used to distinguish atypical ulcers from vascular ulcers.

4B: Thermal imaging measurements and clinical examinations are repeated to the patients with atypical ulcers during follow-up visits, and the change in the measurement of temperatures with thermal imaging is compared with the clinician's assessment of the ulcer status (size, ulcer's border activity, necrosis, and pain intensity) and its changes during follow-up visits. Monitoring of ulcers will continue until the ulcer has epithelized completely or for up to a year.

Actual sample size calculations cannot be made, because previous studies on thermal imaging in patients with atypical ulcers have not been published. Based on previous studies, it can be assumed, that statistically significant differences will be obtained between the study groups of approximately 20 subjects. This is a pilot study, and if the study gives promising results, further research will be carried out in the future with more extensive data.

Clinical implication: If thermal imaging is useful in assessing the tendency of ulcer healing, it can be used to optimize the treatment of ulcer patient, such as considering the timing immunosuppressive treatment or skin graft surgery.

Conditions

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Chronic Ulcer of Skin

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Interventions

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Thermal imaging in diagnostics of chronic ulcers

atypical: vasculitic or pyoderma gangraenosum ulcers

Intervention Type DEVICE

Other Intervention Names

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venous, arterial or mixed ulcers or atypical ulcers

Eligibility Criteria

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Inclusion Criteria

* Patients with chronic ulcer i.e. venous, arterial or mixed ulcers or atypical (vasculitic or pyoderma gangraenosum) ulcers needing tertiary care referred to the Wound Center of Tampere University Hospital are invited to this study.