About this trial
This prospective observational study aims to evaluate the validity of ultrasonographic muscle measurements in patients with inflammatory bowel disease (IBD). Sarcopenia is commonly assessed using computed tomography (CT)-based skeletal muscle area measurements at the L3 vertebral level, which are considered a gold standard method. However, CT is not always feasible due to radiation exposure and accessibility limitations.
In this study, muscle strength will be assessed using handgrip dynamometry, and muscle mass will be evaluated using ultrasonography of selected skeletal muscles. In patients with available recent abdominal CT imaging, L3 skeletal muscle area will be recorded. The primary objective is to compare ultrasonographic muscle measurements with CT-based assessments and to evaluate the agreement between these methods.
This study aims to determine whether ultrasonography can serve as a practical and reliable alternative tool for muscle mass evaluation in patients with IBD.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥18 years
Established diagnosis of inflammatory bowel disease (ICD-10: K50.* Crohn's disease, K51.* ulcerative colitis)
Ability to provide written informed consent
Ability to undergo ultrasonographic muscle assessment and handgrip strength testing
Disqualifiers
Known neuromuscular disorders or primary muscle diseases
Major orthopedic conditions affecting muscle strength assessment
Pregnancy
Abdominal wall defects or conditions interfering with ultrasound assessment
Trial population
Adult patients with inflammatory bowel disease (Crohn's disease or ulcerative colitis) followed at a tertiary care center and undergoing muscle mass and strength evaluation.
Trial design
Cohort
Prospective
Treatments tested in this trial
Muscle Ultrasonography
Diagnostic testStandardized ultrasonographic measurement of skeletal muscle thickness and quality performed in patients with inflammatory bowel disease for comparison with reference muscle assessment methods.
Treatment groups
Trial outcomes
Primary outcomes
Agreement Between Ultrasound and Reference Muscle Measurement
Agreement and correlation between ultrasound-based muscle measurements and reference (gold-standard) muscle assessment methods in patients with inflammatory bowel disease.
Secondary outcomes
Diagnostic Accuracy of Ultrasound for Detecting Low Muscle Mass Defined by CT-L3
Diagnostic performance of ultrasound-measured muscle thickness and quality for identifying low skeletal muscle mass as defined by CT-derived skeletal muscle index (SMI) at the L3 vertebral level. Area under the receiver operating characteristic curve (AUC), sensitivity, specificity, and optimal cutoff values will be calculated.
Association Between Ultrasound Muscle Measurements and Handgrip Strength
Association between ultrasound-measured muscle thickness and muscle quality parameters and handgrip strength measurements in patients with inflammatory bowel disease.
Sponsors and contacts
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