This study investigates agreement between ventilation and perfusion for lung cancer patients undergoing radiotherapy. Ventilation-perfusion scans of nineteen patients with stage III lung cancer from a prospective protocol were compared using voxel-wise Spearman correlation-coefficients. The presented results show in about 25% of patients, ventilation and perfusion exhibit lower agreement.
Keywords: 4DCT scans; Dice Similarity; Functional avoidance; Lung cancer; SPECT ventilation/perfusion; Spearman correlation.
Published by Elsevier B.V.