Tumor-related imaging parameters predict response and survival after neoadjuvant chemoradiotherapy in rectal cancer

Figure 1 Segmented computed tomography images indicating skeletal muscle and fat distribution at the L3 level. Axial and sagittal computed tomography images at the L3 level displaying segmented skeletal muscle (red), visceral fat (green), subcutaneous fat (peach), and intramuscular fat (blue). Skeletal muscle index was calculated to assess sarcopenia. HU: Hounsfield unit.

Figure 2 The area under the curve. A: The area under the curve of the longitudinal tumor diameter for predicting tumor regression grades following neoadjuvant therapy in rectal cancer was 0.657; B: The area under the curve for mesorectal fascia status in predicting tumor downstaging in patients with rectal cancer was 0.703.

Figure 3 The survival curves of baseline lymph node and mesorectal fascia status for predicting overall survival after neoadjuvant therapy in rectal. MRF: Mesorectal fascia.