Computed Tomography and Staging of Lung Cancer – Prospective Study
Stolz A. J., 1Pipková R., Schützner J., Šimonek J., Lischke R., Pafko P.
III. chirurgická klinika 1. LF UK a FNM, Praha 1Klinika zobrazovacích metod FNM, Praha
Background. The aim of our study was to determine validity of computed tomography in staging of non-small cell
Methods and Results. Sixty-two patients with NSCLC were operated at our department between March and
September 2003. Lymph nodes with the shortest diameter over 10 mm on CT were considered abnormal. Primary
tumor was correctly determined by CT scans in 77 % of cases, lymph nodes involvement in 63 %. Stage of NSCLC
was correct in 53% of all patients. Negative predictive value for N1 and N2 was 80 %, resp. 88 %.
Conclusions. Even with improvement in CT technology, validity of CT in staging of NSCLC remains low. We
consider that mediastinoscopy can be avoided in the presence of normal mediastinal CT findings due to high negative
predicative value of nodal improvement.
non-small cell lung cancer, staging, computed tomography, mediastinoscopy.