Investigation of the Learning Effect in the Measurement of Circulation in Calf Muscle Using MSOT

University Hospital Erlangen20 enrolled

Overview

The goal of this observational study is to investigate the learning effect in the measurement of micro-circulation in healthy participants using MSOT. The main question it aims to answer are: If there if a learning effect in MSOT measurement. How long does it takes for the trainees to reach the professional level. Is there a difference between different learning methods? Participants will have to lie on the examination bed while investigator making measurements 7 times in a row on one single location.

Learning effect of MSOT measurements have been observed by previous studies. Therefore, in this study, we aim to quantify the learning effect with circulation-related parameters (Hb, HbO2, SO2) and the similarity between repeated images (structural similarity index measure, SSIM). The measurement would be repeated by 5 different investigators, two of them are professionals, defined as experience over 200 times of MSOT measurement, while the other three are trainees, who haven't performed any MSOT measurements before and each has received one different teaching method, one receiving personal teaching from a professional, one receiving video instruction and one receiving instructions written in paper form.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Multispectral Optoacoustic Tomography Learning Curve Image Interpretation, Computer-Assisted Structural Similarity Index Measure

Interventions

MSOT measurementsDEVICE

Non-invasive transcutaneous imaging of subcellular muscle components via infrared and near-infrared laser pulses

Eligibility

Sex: ALLMin age: 18 YearsMax age: 40 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: -all those who with the age between 18 and 40 year-old Exclusion Criteria: * diabetes mellitus * hypertension * cardiovascular diseases * chronic kidney diseases * amputation in either lower extremities * tatoos in either lower extremities

Locations (1)

University of Erlangen-Nuremberg (FAU), Department of Vascular Surgery

Erlangen, Bavaria, Germany

RECRUITING

Outcomes

Primary Outcomes

Learning curve in MSOT measurements.

If the quality of MSOT measurements improved with practices.

Time frame: 5 days

Different learning curve between professionals and trainees.

Observe the possible difference between the learning curves in professionals and trainees.

Time frame: 5 days

Secondary Outcomes

Different learning curve in three different teaching methods

Three trainees, each received different teaching methods, perform the same measurement on the same participants. The outcome is to observe possible difference in learning curve in these three groups.

Time frame: 5 days

Central Contacts

Ulrich Rother, PD Dr. med.

CONTACT

+4991318542028 ulrich.rother@uk-erlangen.de

Data from ClinicalTrials.gov

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