Variation in size and position of the planning target volume in the transverse plane owing to respiratory movement during radiotherapy to the lung

Essapen, S Knowles, C Tait, D

S. Essapen et al., Variation in size and position of the planning target volume in the transverse plane owing to respiratory movement during radiotherapy to the lung, BR J RADIOL, 74(877), 2001, pp. 73-76

4

INGLESE

Article

Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment

BRITISH JOURNAL OF RADIOLOGY

0007-1285 → ACNP

74

877

2001

73 - 76

ISI

Movement of thoracic tumours with respiration poses a real dilemma in terms of the accuracy of delivering radical radiotherapy in patients with carcin oma of the lung. Movements in the craniocaudal direction have previously be en described. This technical note describes ten patients planned for radica l lung radiotherapy using CT. The study assesses the maximum impact of resp iration on the planning target volume in the transverse plane by comparing the planning CT appearances during quiet respiration with those during full inspiration and full expiration. The study demonstrated the potential impa ct of respiratory movement on the planning target volume and, hence, implic ations for local tumour control.