The measurement of the psoas major muscle volume by 3 dimensional-CT for assessment of nutritional state
2017 Volume 32 Issue 1 Pages 871-877
Details
2017 Volume 32 Issue 1 Pages 871-877
Purpose: Sarcopenia is defined as decreased skeletal muscle mass in elderly people. The purpose of this study was to elucidate the volume of psoas major muscle.
Subjects and Methods: We reviewed the data of five-hundred patients between 2012 and 2015, and measured the psoas major muscle volume (PV) with 3 dimensional-CT, and assessed correlations between PV and ageing, or nutritional parameters.
Results: The mean PV was 295.7 cm3 in male and 165.2 cm3 mL in female, respectively. PV was highly associated with aging and BSA (body surface area) negatively. We made a calculating formula based on gender, generation and BSA (male: 20-40s PV = 403.09 × BSA – 290.63, 50s PV = 269.82 × BSA – 138.83, 60-90s PV = 348.42 × BSA – 329.31, female: 20-30s PV = 233.73 × BSA – 106.12, 40-90s PV = 200.50 × BSA – 135.42). Patients with sarcopenia group, whose real PV using 3D-CT was less than 80% of calculated PV using the formula had significantly lower nutritional parameters than patients without sarcopenia.
Conclusion: Our findings indicate that PV using 3D-CT could be useful for nutrition assessment.
