Fig. 2From: Sarcopenia is associated with prognosis in patients with esophageal squamous cell cancer after radiotherapy or chemoradiotherapyBody composition measurements using computed tomography at the level of third lumbar vertebrae. (A) Original computed tomography images for measurements. (B) Delineation of visceral fat area with a threshold of − 150 to − 50 HU. (C) Delineation of subcutaneous fat area with a threshold of − 190 to − 30 HU. (D) Delineation of total skeletal muscle area with a threshold of − 29 to + 150 HUBack to article page