[Routine computed tomography body composition analysis-experience in intensive care patients].

Area of Science:

• Critical care medicine
• Radiology
• Nutritional science

Context:

• Nutritional status assessment is crucial for intensive care unit (ICU) patients, including muscle status evaluation.
• Routine computed tomography (CT) scans, common in ICUs, offer a viable method for this assessment.
• Analysis of CT scans can quantify muscle area, density, and adipose tissue percentage.

Purpose:

• To evaluate the utility of CT scan analysis for assessing body composition and muscle status in critically ill patients.
• To determine if CT-derived skeletal muscle measurements correlate with total body muscle.
• To explore the potential of CT scans for diagnosing sarcopenia and monitoring nutritional therapy.

Summary:

• Skeletal muscle cross-sections from lumbar spine CT scans strongly correlate with total body muscle mass.
• Population-based cut-off values exist for diagnosing sarcopenia using CT-derived muscle metrics.
• Repetitive CT examinations enable monitoring of individualized nutritional therapy in ICU patients.

Impact:

• CT scan analysis provides valuable insights into body composition for intensive care medicine.
• Automated software is emerging to streamline CT data processing, enhancing feasibility.
• When CT scans are medically indicated, their use for body composition analysis should be maximized to avoid unnecessary radiation exposure.