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Savanović, Milovan, Štrbac, Bojan, Jaroš, Dražan, Loi, Mauro, Huguet, Florence, Foulquier, Jean-Noël. (1401). Quantification of Lung Tumor Motion and Optimization of Treatment. سامانه مدیریت نشریات علمی, 13(1), 65-76. doi: 10.31661/jbpe.v0i0.2102-1278
Milovan Savanović; Bojan Štrbac; Dražan Jaroš; Mauro Loi; Florence Huguet; Jean-Noël Foulquier. "Quantification of Lung Tumor Motion and Optimization of Treatment". سامانه مدیریت نشریات علمی, 13, 1, 1401, 65-76. doi: 10.31661/jbpe.v0i0.2102-1278
Savanović, Milovan, Štrbac, Bojan, Jaroš, Dražan, Loi, Mauro, Huguet, Florence, Foulquier, Jean-Noël. (1401). 'Quantification of Lung Tumor Motion and Optimization of Treatment', سامانه مدیریت نشریات علمی, 13(1), pp. 65-76. doi: 10.31661/jbpe.v0i0.2102-1278
Savanović, Milovan, Štrbac, Bojan, Jaroš, Dražan, Loi, Mauro, Huguet, Florence, Foulquier, Jean-Noël. Quantification of Lung Tumor Motion and Optimization of Treatment. سامانه مدیریت نشریات علمی, 1401; 13(1): 65-76. doi: 10.31661/jbpe.v0i0.2102-1278

Quantification of Lung Tumor Motion and Optimization of Treatment

Journal of Biomedical Physics and Engineering
مقاله 8، دوره 13، شماره 1، اردیبهشت 2023، صفحه 65-76    اصل مقاله (1.57 M)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2102-1278
نویسندگان
Milovan Savanović* 1، 2؛ Bojan Štrbac3؛ Dražan Jaroš4، 5؛ Mauro Loi2؛ Florence Huguet2؛ Jean-Noël Foulquier2
1Faculty of Medicine, University of Paris-Saclay, 94276 Le Kremlin-Bicêtre, France
2Department of Radiation Oncology, Tenon Hospital, APHP, Sorbonne University, 75020 Paris, France
3MATER Private Hospital, Department of Physics, Eccles Street, Dublin 7, Ireland
4Center for Radiotherapy, International Medical Centers, Affidea, 78000 Banja Luka, Bosnia, and Herzegovina
5Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia, and Herzegovina
چکیده
Background: Mobility of lung tumors is induced by respiration and causes inadequate dose coverage. 
Objective: This study quantified lung tumor motion, velocity, and stability for small (≤5 cm) and large (>5 cm) tumors to adapt radiation therapy techniques for lung cancer patients.
Material and Methods: In this retrospective study, 70 patients with lung cancer were included that 50 and 20 patients had a small and large gross tumor volume (GTV). To quantify the tumor motion and velocity in the upper lobe (UL) and lower lobe (LL) for the central region (CR) and a peripheral region (PR), the GTV was contoured in all ten respiratory phases, using 4D-CT. 
Results: The amplitude of tumor motion was greater in the LL, with motion in the superior-inferior (SI) direction compared to the UL, with an elliptical motion for small and large tumors. Tumor motion was greater in the CR, rather than in the PR, by 63% and 49% in the UL compared to 50% and 38% in the LL, for the left and right lung. The maximum tumor velocity for a small GTV was 44.1 mm/s in the LL (CR), decreased to 4 mm/s for both ULs (PR), and a large GTV ranged from 0.4 to 9.4 mm/s.  
Conclusion: The tumor motion and velocity depend on the tumor localization and the greater motion was in the CR for both lobes due to heart contribution. The tumor velocity and stability can help select the best technique for motion management during radiation therapy.
کلیدواژه‌ها
Lung Cancer؛ Tumor Motion؛ Tumor Velocity؛ Tumor Stability؛ Four-Dimensional Computed Tomography؛ Stereotactic Body Radiotherapy؛ Radiotherapy؛ Intensity-Modulated Radiotherapy
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