Monitoring of Pediatric Inflammatory Bowel Diseases Using Multispectral Optoacoustic Tomography

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

RECRUITING

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-01-24

Study Completion Date

2026-02-01

Brief Summary

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In this clinical trial, the intestinal wall of pediatric patients with Crohns disease and Ulcerative Colitis will be assessed with multispectral optoacoustic tomography (MSOT) to characterize the optoacoustic signal of the intestinal wall and to monitor disease activity.

The goal of this clinical trial is to compare the optoacoustic signal in the intestinal wall of children with inflammatory bowel diseases. The main questions it aims to answer are:

* How does the optoacoustic signal in children with inflammatory bowel diseases change over time?
* How does the optoacoustic signal in children with inflammatory bowel diseases change when they receive therapy? Participants will be examined with multispectral optoacoustic tomography.

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Detailed Description

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In this study, the disease activity of children and adolescents with inflammatory bowel disease (IBD) will be assessed non-invasively by multispectral optoacoustic tomography (MSOT). IBDs play an important role in pediatric and adolescent medicine. The most common entities in the IBS group are Crohn's disease (CD) and ulcerative colitis (UC). Patients with CD develop chronic intermittent transmural inflammation of the gastrointestinal (GI) tract. Symptoms include diarrhea, hematochezia, abdominal pain, and malnutrition. Complications of the disease include fistula formation, perforations, and bleeding.The basis for many clinical decisions is the detection of disease activity.There are limitations to previous imaging methods for routine monitoring that are particularly relevant in pediatric and adolescent medicine.The use of contrast media, sedation, and invasive procedures are a burden for pediatric patients\*.Multispectral optoacoustic tomography (MSOT) offers a radiation-free and noninvasive alternative for detecting disease activity. Quantitative assessment of hemoglobin signal in the bowel wall of patients with CD could previously be correlated with endoscopically detected disease activity. The aim of this study is to evaluate whether MSOT also allows monitoring of chronic inflammatory diseases in children. For this purpose, children in different stages of disease who regularly receive intravenous therapeutic administrations of biologics (e.g. infliximab) in our hospital will be examined. The investigators think that by means of MSOT different stages and courses of the diseases could be measured non-invasively and thus invasive measures in children could be reduced.

Conditions

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Crohn Disease Ulcerative Colitis Inflammatory Bowel Diseases

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Crohns Disease

Patients with Crohns Disease

Multispectral Optoacoustic Tomography

Intervention Type DIAGNOSTIC_TEST

In MSOT, laser light is emitted into the target tissue via a handheld probe. Thermoelastic expansion of various molecules in the target area generates ultrasound waves that are detected by the transducer. The detected signals are reconstructed into images using algorithms. Spectral analysis of the optoacoustic signal at different wavelengths in the near-infrared range can detect individual chromophores, such as oxygenated and deoxygenated hemoglobin.

Ulcerative Colitis

Patients with Ulcerative Colitis

Multispectral Optoacoustic Tomography

Intervention Type DIAGNOSTIC_TEST

In MSOT, laser light is emitted into the target tissue via a handheld probe. Thermoelastic expansion of various molecules in the target area generates ultrasound waves that are detected by the transducer. The detected signals are reconstructed into images using algorithms. Spectral analysis of the optoacoustic signal at different wavelengths in the near-infrared range can detect individual chromophores, such as oxygenated and deoxygenated hemoglobin.

Interventions

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Multispectral Optoacoustic Tomography

In MSOT, laser light is emitted into the target tissue via a handheld probe. Thermoelastic expansion of various molecules in the target area generates ultrasound waves that are detected by the transducer. The detected signals are reconstructed into images using algorithms. Spectral analysis of the optoacoustic signal at different wavelengths in the near-infrared range can detect individual chromophores, such as oxygenated and deoxygenated hemoglobin.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Existing diagnosis of CD or UC, or suspected CD or UC at initial diagnosis.
* Age 2 - 18 years
* Written declaration of consent from parents / legal guardians

Exclusion Criteria

* Pregnancy
* Nursing mothers
* Cardiopulmonary unstable patients\*: Need for continuous cardiopulmonary monitoring
* Tattoo in the area of the examination field
* Subcutaneous fat \> 3 cm

Minimum Eligible Age

2 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No