OBJECTIVES: Tumor thickness and tumor volume measured by computed tomography (CT) were suggested as valuable prognosticator for patients' survival diagnosed with malignant pleural mesothelioma (MPM). The purpose was to assess the accuracy of CT scan based preoperatively measured tumor volume and thickness compared to actual tumor weight of resected MPM specimen and pathologically assessed tumor thickness, as well as an analysis of their impact on overall survival (OS). METHODS: Between 09/2013-08/2018, 74 patients were treated with induction chemotherapy followed by (extended) pleurectomy/decortication ((E)PD). In 53 patients, correlations were made between CT-measured volume and -tumor thickness (cTV and cTT) and actual tumor weight (pTW) based on the available values. Further cTV and pT/IMIG stage were correlated using Pearson correlation. Overall survival (OS) was calculated with Kaplan Meier analysis and tested with log rank test. For correlation with OS Kaplan-Meier curves were made and log rank test was performed for all measurements dichotomized at the median. RESULTS: Median pathological tumor volume (pTV) and pTW were 530 ml [130 ml - 1000 ml] and 485 mg [95 g - 982 g] respectively. Median (IQR) cTV was 77.2 ml (35.0-238.0), median cTT was 9.0 mm (6.2-13.7). Significant association was found between cTV and pTV (R = 0.47, p < 0.001) and between cTT and IMIG stage (p = 0,001) at univariate analysis. Multivariate regression analysis revealed, that only cTV correlates with pTV. Median follow-up time was 36.3 months with 30 patients dead at the time of the analysis. Median OS was 23.7 months. 1-year and 3-year survival were 90 and 26% respectively and only the cTV remained statistically associated with OS. CONCLUSION: Preoperatively assessed CT tumor volume and actual tumor volume showed a significant correlation. CT tumor volume may predict pathological tumor volume as a reflection of tumor burden, which supports the integration of CT tumor volume into future staging systems.
OBJECTIVES:Tumor thickness and tumor volume measured by computed tomography (CT) were suggested as valuable prognosticator for patients' survival diagnosed with malignant pleural mesothelioma (MPM). The purpose was to assess the accuracy of CT scan based preoperatively measured tumor volume and thickness compared to actual tumor weight of resected MPM specimen and pathologically assessed tumor thickness, as well as an analysis of their impact on overall survival (OS). METHODS: Between 09/2013-08/2018, 74 patients were treated with induction chemotherapy followed by (extended) pleurectomy/decortication ((E)PD). In 53 patients, correlations were made between CT-measured volume and -tumor thickness (cTV and cTT) and actual tumor weight (pTW) based on the available values. Further cTV and pT/IMIG stage were correlated using Pearson correlation. Overall survival (OS) was calculated with Kaplan Meier analysis and tested with log rank test. For correlation with OS Kaplan-Meier curves were made and log rank test was performed for all measurements dichotomized at the median. RESULTS: Median pathological tumor volume (pTV) and pTW were 530 ml [130 ml - 1000 ml] and 485 mg [95 g - 982 g] respectively. Median (IQR) cTV was 77.2 ml (35.0-238.0), median cTT was 9.0 mm (6.2-13.7). Significant association was found between cTV and pTV (R = 0.47, p < 0.001) and between cTT and IMIG stage (p = 0,001) at univariate analysis. Multivariate regression analysis revealed, that only cTV correlates with pTV. Median follow-up time was 36.3 months with 30 patients dead at the time of the analysis. Median OS was 23.7 months. 1-year and 3-year survival were 90 and 26% respectively and only the cTV remained statistically associated with OS. CONCLUSION: Preoperatively assessed CT tumor volume and actual tumor volume showed a significant correlation. CT tumor volume may predict pathological tumor volume as a reflection of tumor burden, which supports the integration of CT tumor volume into future staging systems.
Authors: A Scherpereel; P Astoul; P Baas; T Berghmans; H Clayson; P de Vuyst; H Dienemann; F Galateau-Salle; C Hennequin; G Hillerdal; C Le Péchoux; L Mutti; J-C Pairon; R Stahel; P van Houtte; J van Meerbeeck; D Waller; W Weder Journal: Eur Respir J Date: 2009-08-28 Impact factor: 16.671
Authors: Harvey Pass; Dorothy Giroux; Catherine Kennedy; Enrico Ruffini; Ayten K Cangir; David Rice; Hisao Asamura; David Waller; John Edwards; Walter Weder; Hans Hoffmann; Jan P van Meerbeeck; Anna Nowak; Valerie W Rusch Journal: J Thorac Oncol Date: 2016-09-23 Impact factor: 15.609
Authors: Anna K Nowak; Kari Chansky; David C Rice; Harvey I Pass; Hedy L Kindler; Lynn Shemanski; Andrea Billé; Robert C Rintoul; Hasan F Batirel; Charles F Thomas; Joseph Friedberg; Susana Cedres; Marc de Perrot; Valerie W Rusch Journal: J Thorac Oncol Date: 2016-09-26 Impact factor: 15.609
Authors: Ian Woolhouse; Lesley Bishop; Liz Darlison; Duneesha De Fonseka; Anthony Edey; John Edwards; Corinne Faivre-Finn; Dean A Fennell; Steve Holmes; Keith M Kerr; Apostolos Nakas; Tim Peel; Najib M Rahman; Mark Slade; Jeremy Steele; Selina Tsim; Nick A Maskell Journal: Thorax Date: 2018-03 Impact factor: 9.139