Publications by authors named "Unurjargal Bayasgalan"
Article Synopsis
- - The study compared proton beam therapy (PBT) and photon radiotherapy for treating stage I non-small cell lung cancer (NSCLC) by analyzing outcomes from patients at the only two PBT facilities in South Korea.
- - After a median follow-up of 27 months, both treatment options showed similar local progression-free survival (94.0%) and overall survival rates (83.0%) when analyzed for matched patients.
- - PBT significantly lowered radiation exposure to the lungs and heart compared to photon radiotherapy while maintaining effective disease control in NSCLC patients.
Herein, we investigated the dosimetric benefits for proton beam therapy (PBT) over modern photon radiation techniques according to tumor location (central, peripheral, and close to the chest wall) for stage I non-small cell lung cancer (NSCLC) patients. A total of 42 patients with stage I NSCLC were treated with PBT with a total dose of 50-70 Gy in four or 10 fractions considering the risk of treatment-related toxicities. Simulation plans for three-dimensional conformal radiation therapy (3D-CRT), static-field intensity-modulated radiotherapy (IMRT), and volumetric-modulated arc therapy (VMAT) were retrospectively generated using the same treatment volumes as implemented in the PBT plans for these patients.
View Article and Find Full Text PDFIntroduction: To investigate the treatment outcomes of passive scattering proton beam therapy using stereotactic ablative radiotherapy (SABR) or hypofractionated radiation therapy (RT) for inoperable patients or those who refused surgery for stage I non-small cell lung cancer (NSCLC).
Methods: From January 2016 to December 2019, we retrospectively analyzed 42 patients with stage I NSCLC treated with proton beam therapy. The initially intended dose regimen was 60 cobalt Gray equivalents (CGE) in 4 fractions; however, sequentially modified dose regimens were used when the dose-volume constraints could not be met.
Background And Purpose: We compared treatment outcomes and toxicities of photon radiotherapy proton beam therapy (PBT) and evaluated radiation field effects for T1-3 squamous cell carcinoma of the thoracic esophagus (EC) without lymph node metastasis.
Methods: Medical records of 77 patients with T1-3N0M0 thoracic EC treated with radiotherapy between 2011 and 2019 were retrospectively analyzed. Among these patients, 61 (79.