Physics Bucharest 2017

CTV margin determination-surgical experience

Examples Lung

• 35 patients with T1N0 NSCLC underwent wedge resection plus immediate lobectomy. • GTV and microscopic extension distance beyond the gross tumor were measured. • Grade analyzed for association with microscopic extension.

Grills IS, Fitch DL, Goldstein NS, Yan D, Chmielewski GW, Welsh RJ, Kestin LL: Clinicopathologic analysis of microscopic extension in lung adenocarcinoma: defining clinical target volume for radiotherapy. Int J Radiat Oncol Biol Phys 2007, 69(2):334-341.