Pulmonary nodules volumetry. Variability in Results After Manual Correction of Contours
https://doi.org/10.20862/0042-4676-2019-100-2-74-81
Abstract
Objective. To study variability of volumetric of the pulmonary nodules volumetry after manual correction of their contours.
Material and methods. Twenty-seven nodules uncircumscribed from the vascular structures and pleura were selected. A linear regression model was used to investigate the impact of the size of a nodule, the area of its contact with the adjacent structures on variability in results.
Results. The linear regression model based on contact area and nodule size can correctly predict volumetry variability.
Conclusion. Even after manual segmentation volumetry remain suitable method for size assessment of lung nodules. Segmentation should be made with the same person because of significant difference of interobserver and intraobserver variabilities.
About the Authors
E. V. Rozengauz
North-Western State Medical University named after I.I. Mechnikov, Ministry of Health of the Russian Federation;
Russian Scientific Center of Radiology and Surgical Technologies named after A.M. Granov, Ministry of Health of the Russian Federation
Russian Federation
Russian Federation
Evgeniy V. Rozengauz, Dr. Med. Sc., Professor of Chair of Radiology and Radiotherapy, North-Western State Medical University named after I.I. Mechnikov, Ministry of Health of the Russian Federation; Head of Department of Computed Tomography, Russian Scientific Center of Radiology and Surgical Technologies named after A.M. Granov, Ministry of Health of the Russian Federation
ul. Kirochnaya, 41, St. Petersburg, 191015,
ul. Leningradskaya, 70, poselok Pesochnyy, St. Petersburg, 197758
D. V. Nesterov
North-Western State Medical University named after I.I. Mechnikov, Ministry of Health of the Russian Federation
Russian Federation
Russian Federation
Denis V. Nesterov, Cand. Med. Sc., Assistant Professor of Chair of Radiology and Radiotherapy
ul. Kirochnaya, 41, St. Petersburg, 191015
Z. A. Al’derov
North-Western State Medical University named after I.I. Mechnikov, Ministry of Health of the Russian Federation
Russian Federation
Russian Federation
Zaur A. Al’derov, Postgraduate
ul. Kirochnaya, 41, St. Petersburg, 191015
N. M. Korablin
City Hospital № 33
Russian Federation
Russian Federation
Nikolay M. Korablin, Cand. Med. Sc., Radiologist
ul. Pavlovskaya, 16A, St. Petersburg, 196653
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Review
For citations:
Rozengauz E.V., Nesterov D.V., Al’derov Z.A., Korablin N.M. Pulmonary nodules volumetry. Variability in Results After Manual Correction of Contours. Journal of radiology and nuclear medicine. 2019;100(2):74-81. (In Russ.) https://doi.org/10.20862/0042-4676-2019-100-2-74-81
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