Quality assurance challenges for motion-adaptive radiation therapy: Gating, breath holding, and four-dimensional computed tomography Journal Article
| Authors: | Jiang, S. B.; Wolfgang, J.; Mageras, G. S. |
| Article Title: | Quality assurance challenges for motion-adaptive radiation therapy: Gating, breath holding, and four-dimensional computed tomography |
| Abstract: | Compared with conventional three-dimensional (3D) conformal radiation therapy and intensity-modulated radiation therapy treatments, quality assurance (QA) for motion-adaptive radiation therapy involves various challenges because of the added temporal dimension. Here we discuss those challenges for three specific techniques related to motion-adaptive therapy: namely respiratory gating, breath holding, and four-dimensional computed tomography. Similar to the introduction of any other new technologies in clinical practice, typical QA measures should be taken for these techniques also, including initial testing of equipment and clinical procedures, as well as frequent QA examinations during the early stage of implementation. Here, rather than covering every QA aspect in depth, we focus on some major QA challenges. The biggest QA challenge for gating and breath holding is how to ensure treatment accuracy when internal target position is predicted using external surrogates. Recommended QA measures for each component of treatment, including simulation, planning, patient positioning, and treatment delivery and verification, are discussed. For four-dimensional computed tomography, some major QA challenges have also been discussed. © 2008 Elsevier Inc. All rights reserved. |
| Keywords: | three dimensional; treatment planning; clinical practice; reproducibility; accuracy; quality control; computer assisted tomography; image interpretation, computer-assisted; lung neoplasms; radiotherapy; calibration; tomography, x-ray computed; patient monitoring; practice guideline; breast neoplasms; simulation; computerized tomography; quality assurance; phantom; phantoms, imaging; respiratory function; breath holding; patient positioning; motion; respiration; x ray; prostheses and implants; radiotherapy, computer-assisted; movement; 4d ct; respiratory gating; respiratory therapy; four dimensional computed tomography (4d ct); motion adaptive radiation therapies |
| Journal Title: | International Journal of Radiation Oncology, Biology, Physics |
| Volume: | 71 |
| Issue: | 1 Suppl. |
| ISSN: | 0360-3016 |
| Publisher: | Elsevier Inc. |
| Date Published: | 2008-05-01 |
| Start Page: | S103 |
| End Page: | S107 |
| Language: | English |
| DOI: | 10.1016/j.ijrobp.2007.07.2386 |
| PUBMED: | 18406905 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | --- - "Cited By (since 1996): 13" - "Export Date: 17 November 2011" - "CODEN: IOBPD" - "Source: Scopus" |
