MedTrace Logo

A Validation Study of Near Infrared Fluorescence Imaging of Lymphatic Vessels in Humans.

NCT02154204 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 10

Last updated 2017-06-29

No results posted yet for this study

Summary

The aim of this study is to examine the use of Near Infrared Fluorescence imaging on lymphatic vessels in humans.

Different parameters that reflect lymphatic function will be tested for intra and inter individual reproducibility.

We use 10 healthy test subjects and examine their lymphatic system. All subjects are healthy men between the ages of 20 and 30.

When the fluorescent dye "indocyanine green", has been injected into the skin on the patients feet, it will be transported through the lymph vessels, resulting in clear visualization of the vessels, using a laser and a EM-CCD camera.

On both legs we examine the frequency of vessel contraction and the velocity of lymph moving in vessels. We furthermore use several methods to quantify the vessel function such as the refill time of a vessel, (manually emptied vessel and refill time of 10 cm of a vessel), and pumping pressure (at what pressure lymph can pass a blood pressure cuff).

We investigate the activity of vessels over time, and after several interventions such as exercise, and water baths of the foot at different temperatures.

The patients are examined for approximately 4 hours and wil be examined again 14 days later.

Conditions

  • Focus of Study is: Near Infrared Fluorescence Imaging

Sponsors & Collaborators

  • University of Aarhus

    lead OTHER

Principal Investigators

  • Vibeke E Hjortdal, MD, PhD, DMSc · Department of cardiothoracic and vascular surgery, Aarhus university hospita

  • Jacob H Grønlund, bac. med. · Department of cardiothoracic and vascular surgery, Aarhus university hospita

Eligibility

Min Age
20 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-05-31
Primary Completion
2015-05-31
Completion
2015-05-31

Countries

  • Denmark

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02154204 on ClinicalTrials.gov