Loading...
Please wait, while we are loading the content...
Similar Documents
Comparison and Evaluation of Different Treatment Plans with IFRT Field and 6 and 18 MV Energies in Hodgkin’s Lymphoma Involvement Neck and Mediastinum
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tavakoli Maleki, Mahboubeh Akhavan, Ali Abedi, Iraj Amouheidari, Alireza |
| Copyright Year | 2018 |
| Abstract | Background Radiotherapy with large mantle field is an effective technique in increasing the risk of secondary cancers among HL (Hodgkin Lymphoma) patients; therefore, it is essential to choose an effective treatment field including the least medical conditions in radiotherapy. Objective The present study aimed to plan separate fields for neck and mediastinum using various energies, to compare dose distribution with MLC and to block field formation. Materials and Methods In this study, 3D conformal treatments, Siemens Oncor accelerator equipped with multi-leaf collimator (MLC) were performed to create anterior-posterior fields. CT-scan data of 18 female patients with neck and mediastinal involvement was imported in TIGRT treatment planning system, and then treatment plans were introduced. Results and Conclusion Using treatment plan 1, photon 6 MV in neck weighting 1 from interior, 0.5 from posterior, photon 18MV in mediastinum weighting 1 from interior and 0.5 from posterior, it was shown that regarding the common treatment plan used with photon 6 MV, mean dose delivered to breast, lung, esophagus and larynx reduced 6, 7, 41 and 10 percent, respectively and uniformity index improved by 10 percent. Using block compared to MLC in all treatment plans offered improved average dose in all organs under study. To protect breast and lung while using MLC and block in the first treatment plan seemed to be more appropriate; however, using blocks in comparison to MLC increased delivered mean dose in all organs under study. Using separate fields with Pb blocks, though, showed smaller increase. |
| Starting Page | 65 |
| Ending Page | 72 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6a/49/JBPE-8-65.PMC5928312.pdf |
| PubMed reference number | 5928312 |
| Volume Number | 8 |
| Journal | Journal of biomedical physics & engineering |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Collimator Device Component Energy, Physics Esophagus Hodgkin Disease Involved-Field Radiation Therapy Larynx Lead Lymphoma Lymphoma, Non-Hodgkin Mantle Field Mediastinum Neoplasms Non-Small Cell Lung Carcinoma Numerous Organ Patients Photons Small Structure of parenchyma of lung Units Of Measure - Siemens |
| Content Type | Text |
| Resource Type | Article |
