Results 81 to 90 of about 44,626 (291)

A robust approach to IMRT optimization [PDF]

Physics in Medicine and Biology, 2006
Managing uncertainty is a major challenge in radiation therapy treatment planning, including uncertainty induced by intrafraction motion, which is particularly important for tumours in the thorax and abdomen. Common methods to account for motion are to introduce a margin or to convolve the static dose distribution with a motion probability density ...
Timothy C Y, Chan, Thomas, Bortfeld, John N, Tsitsiklis   +2 more
openaire   +2 more sources

Rotational IMRT techniques compared to fixed gantry IMRT and Tomotherapy: multi-institutional planning study for head-and-neck cases [PDF]

, 2011
Background Recent developments enable to deliver rotational IMRT with standard C-arm gantry based linear accelerators. This upcoming treatment technique was benchmarked in a multi-center treatment planning study against static gantry IMRT and rotational ...
Georg Dietmar, Gerd Lutters, Wendt Thomas G, Henning Salz, Dietmar Georg, Fotina Irina, Tilo Wiezorek, Kai Schubert, Gregor Habl, Brachwitz, Tim, Habl Gregor, Matthias Kretschmer, Georg, Dietmar, Brachwitz Tim, Habl, Gregor, Wendt, Thomas G., Lutters Gerd, Schubert, Kai, Salz Henning, Blank Eyck, Kretschmer Matthias, Wagner Daniela, Lutters, Gerd, Wiezorek Tilo, Wiezorek, Tilo, Blank, Eyck, Eyck Blank, Thomas G Wendt, Fotina, Irina, Tim Brachwitz, Irina Fotina, Wagner, Daniela, Schubert Kai, Daniela Wagner, Kretschmer, Matthias, Salz, Henning   +35 more
core   +1 more source

StrataXRT Versus Mepitel Film for Prevention of Acute Radiation Dermatitis in Postmastectomy Radiotherapy: A Pooled Analysis of Intra‐Patient Randomised Trials

Journal of Medical Radiation Sciences, EarlyView.
In 120 patients receiving postmastectomy radiotherapy, each irradiated chest wall was divided into medial and lateral halves, which were randomised to Mepitel Film or StrataXRT. Mepitel Film reduced grade 2–3 acute radiation dermatitis and clinician‐assessed erythema and moist desquamation over time.
Shing Fung Lee, Patries M. Herst, Melissa L. James, Pui Lam Yip, Carminia Lapuz, Farshad Foroudi, Michael Chao   +6 more
wiley   +1 more source

Dosimetry, Toxicity and Stability Associated With a Hyaluronic Acid‐Based Prostate‐Rectal Spacing Device During Prostate Radiation Therapy: A Retrospective Comparative Analysis

Journal of Medical Radiation Sciences, EarlyView.
Rectal spacers composed of stabilised hyaluronic acid facilitated a favourable toxicity profile compared to no spacing during prostate radiation therapy. Acute GI toxicity (grade ≥ 1) was lower in the spacer cohort (23.5% vs. 48.0%; odds ratio = 0.33, p = 0.05) with grade ≥ 2 toxicity substantially lower (2.9% vs. 20.0%).
Fadila Najem, Bridget Smith, Sary Chen, Lucinda Wood, Asmaa El‐Heneidy, Lloyd Smyth, Hodo Haxhimolla, Pat Bowden   +7 more
wiley   +1 more source

Intrafraction motion and impact of margin reduction for MR‐Linac online adaptive radiotherapy for pancreatic cancer treatments

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 17-24, March 2025.
This analysis included quantification of intrafraction motion in pancreas stereotactic ablative radiotherapy treated on the MR‐Linac, leading to the development of adjusted (PTV) margins. Intrafraction motion indicated an average target displacement of 1–3 mm, resulting in an adjusted PTV margin of 2 mm in the right–left and superior–inferior ...
Ashleigh Fasala, Madeline Carr, Yolanda Surjan, Parmoun Daghigh, Jeremy de Leon, Abbey Burns, Vikneswary Batumalai   +6 more
wiley   +1 more source

Advantages of using reduced-volume intensity modulated radiation therapy for the treatment of nasopharyngeal carcinoma: a retrospective paired study

BMC Cancer, 2019
Background The definition of clinical target volume (CTV) in intensity modulated radiation therapy (IMRT) for nasopharyngeal carcinoma (NPC) has not been addressed. We performed this study to assess the feasibility and efficacy of using IMRT with reduced-
Fang Liu, Ting Luo, Tao Jin, Jiahui Zhang, Zhongzheng Xiang, Ruonan Yan, Li Xie, Xin Wu, Hong Zhang, Feng Wang, Ping Li, Lei Liu   +11 more
doaj   +1 more source

Technique considerations for implementing volumetric‐modulated arc therapy for total body irradiation within an Australian tertiary institution

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 165-172, March 2025.
In 2020, our institution transitioned to the Eclipse™ treatment planning system and to Truebeam® linear accelerators with 6 MV and 10 MV energies. The linear accelerators were installed in smaller bunkers that could not accommodate 400 cm FAD. A multidisciplinary team within the institution was created to evaluate existing total body irradiation ...
Gabriella La Macchia, Clare Wan, Joshua Dass, Mandy Taylor, Gabor Neveri, Malgorzata Skorska   +5 more
wiley   +1 more source

Optimizing laryngeal sparing with intensity modulated radiotherapy or volumetric modulated arc therapy for unilateral tonsil cancer

Physics and Imaging in Radiation Oncology, 2019
Background and purpose: Minimizing radiation dose exposure to nearby organs is key to limiting clinical toxicities associated with radiotherapy. Several treatment modalities such as split- or whole-field intensity-modulated radiotherapy (SF-IMRT, WF-IMRT)
Amy C. Moreno, Christopher Wilke, He Wang, Shi-Ming Samuel Tung, Courtney Pollard, III, Adam S. Garden, William H. Morrison, David I. Rosenthal, Clifton D. Fuller, Gary B. Gunn, Jay P. Reddy, Shalin J. Shah, Steven J. Frank, Vinita Takiar, Jack Phan   +14 more
doaj   +1 more source

The Prognostic Value of EDRIC and Its Association With Radiation‐Induced Lymphopenia in Patients With Esophageal Cancer Undergoing Radical Radiotherapy: A Single‐Center Chinese Study

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT This study aimed to evaluate the predictive value of the estimated dose of radiation to immune cells (EDRIC) in patients with esophageal cancer receiving radical radiotherapy. We retrospectively reviewed the data of patients with esophageal cancer who underwent definitive radiotherapy at our institution.
Yue Ke, Chen Yang, Yu‐Xing Li, Xiao‐Xiao Liu, Xiao Liu, Jia‐Min Gao, Hong‐Bing Ma   +6 more
wiley   +1 more source

Optimal dose limitation strategy for bone marrow sparing in intensity-modulated radiotherapy of cervical cancer

Radiation Oncology, 2019
Background To quantify the dosimetric parameters of different bone marrow sparing strategies and to determine the optimal strategy for cervical cancer patients undergoing postoperative intensity-modulated radiotherapy (IMRT).
Zhirong Bao, Dajiang Wang, Shupeng Chen, Min Chen, Dazhen Jiang, Chunxu Yang, Hui Liu, Jing Dai, Conghua Xie   +8 more
doaj   +1 more source