Results 11 to 20 of about 51,158 (208)

Development of a low‐cost 3D‐printed phantom for end‐to‐end testing of model‐based dose calculation algorithms (MBDCAs) in high‐dose‐rate (HDR) brachytherapy [PDF]

Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.
Abstract Background Model‐Based Dose Calculation Algorithms (MBDCAs), such as AcurosBV, have improved dosimetric accuracy in high‐dose‐rate (HDR) brachytherapy by accounting for medium heterogeneities and variations in scatter conditions. However, their safe and effective clinical implementation requires thorough commissioning, of which end‐to‐end (E2E)
Sean Grace, Lin Wang, Yijian Cao, Lyu Huang   +3 more
wiley   +2 more sources

Dosimetric evaluation of systematic source position uncertainty along the source path and robust planning during MRI‐only cervical HDR brachytherapy [PDF]

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Background The knowledge of the dosimetric impact of systematic source position uncertainty and the use of a methodology for robust treatment planning against such uncertainty can help improve the quality of treatment plans, during MR‐only cervical brachytherapy treatment.
Amritpal Singh, Raffi Karshafian, Ananth Ravi, Moti Raj Paudel   +3 more
wiley   +2 more sources

Deep learning auto‐contouring of target and organs‐at‐risk on post‐catheter implant CT images for prostate HDR brachytherapy [PDF]

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Accurate delineation of the prostate and surrounding organs‐at‐risk (OARs) is essential for HDR prostate brachytherapy. Manual contouring on post‐catheter CT images is time‐consuming and prone to variability due to artifacts and anatomical deformation from the implanted brachytherapy catheters.
Eric M. Wallat, Joseph B. Schulz, John M. Floberg, Gregory Cooley, Bryan P. Bednarz, Jordan M. Slagowski   +5 more
wiley   +2 more sources

Physics Contributions Dose correction in lung for HDR breast brachytherapy [PDF]

Journal of Contemporary Brachytherapy, 2012
To evaluate the dosimetric impact of lung tissue in Ir-192 APBI.In a 40 × 40 × 40 cm(3) water tank, an Accelerated Partial Breast Irradiation (APBI) brachytherapy balloon inflated to 4 cm diameter was situated directly below the center of a 30 × 30 × 1 cm(3) solid water slab. Nine cm of solid water was stacked above the 1 cm base.
Slessinger, Eric, Pepin, Eric, Zhao, Qingya, Zhao, Li, Das, Indra   +4 more
openaire   +3 more sources

The use of nomograms in LDR-HDR prostate brachytherapy

Journal of Contemporary Brachytherapy, 2011
The common use of nomograms in Low Dose Rate (LDR) permanent prostate brachytherapy (BT) allows to estimate the number of seeds required for an implant. Independent dosimetry verification is recommended for each clinical dosimetry in BT. Also, nomograms can be useful for dose calculation quality assurance and they could be adapted to High Dose Rate ...
Ma Carmen Pujades, Cristina Camacho, Jose Perez-Calatayud, José Richart, Jose Gimeno, Françoise Lliso, Vicente Carmona, Facundo Ballester, Vicente Crispín, Silvia Rodríguez, Alejandro Tormo   +10 more
openaire   +4 more sources

A constraint‐normalized robustness index for HDR brachytherapy [PDF]

Medical Physics
Abstract Background Geometric uncertainties in high‐dose‐rate brachytherapy, including applicator displacement, catheter deflection, and interstitial needle spread, produce dose deviations that are patient and plan specific.
Portocarrero‐Bonifaz, Andres, Viviers, Emma, Mclemore, Luke, Sowards, Keith T., Silva, Scott R., Nieto, Karina   +5 more
openaire   +4 more sources

Dosimetric analysis and comparison of IMRT and HDR brachytherapy in treatment of localized prostate cancer

Journal of Medical Physics, 2010
Radical radiotherapy is one of the options for the management of prostate cancer. In external beam therapy, 3D conformal radiotherapy (3DCRT) and intensity modulated radiotherapy (IMRT) are the options for delivery of increased radiation dose, as vital ...
Murali V, Kurup P. G. G., Mahadev P, Mahalakshmi S   +3 more
doaj   +2 more sources

Dosimetry evaluation and uncertainty analysis of Cobalt-60 HDR brachytherapy for cervical cancer in resource-limited settings [PDF]

Journal of Cancer Research and Clinical Oncology
Background High-dose-rate (HDR) brachytherapy is essential in the treatment of locally advanced cervical cancer. While Iridium-192 (Ir-192) is commonly used, its short half-life imposes logistical and financial constraints, particularly in low- and ...
Asmaa M. El-Doushy, Ehab Marouf Attalla, I. H. Ibrahim, S. M. El-Sayed, Ayat M. Saadeldin   +4 more
doaj   +2 more sources

3D transformer-based dose prediction in HDR brachytherapy for cervical cancer [PDF]

BMC Cancer
Background The clinical process of high-dose-rate brachytherapy (HDRBT) is time-consuming and relies on user expertise and preference. Deep learning-based dose prediction can act as a quality assurance (QA) tool to identify suboptimal needle placement ...
Weiwei Guo, Wanwei Jian, Lin Zhu, Bailin Zhang, Qiang He, Geng Yang, Xuetao Wang   +6 more
doaj   +2 more sources

A precise and simple isodose-volume-based verification method for HDR and LDR brachytherapy plans. [PDF]

, 2023
PURPOSE The American Association of Physicists in Medicine (AAPM) code of practice for brachytherapy physics recommends performing an independent treatment time calculation.
Glatzer, Markus, Schiefer, H, Heinze, S
core   +2 more sources