meetings
Authors: D Pham, PhD, CMD, RT(T)
Poster Summary: Auto planning scripts can be implemented within a department to assist with freeing up planning resources. The dosimetry is comparable to manually generated linac and ring-based delivery systems. Limitations of the system include long calculations and edge cases.
Authors: K Lehman; M Mundis, CMD; S Chen, PhD; K Krudys, CMD
Poster Summary: This comparison displays an increase in plan conformality with a sharper dose fall-off utilizing the HD MLCs and 6XFFF beams of the Varian Edge machine.
Authors: D Granatowicz, MS, CMD; C Rhodd, MS, BSRT
Poster Summary: A comparison between manual physician drawn contours and ones done by Radformation’s AutoContour software for the supraclavicular lymph nodes, axilla lymph nodes, and breast.
Authors: K Luca, MS, CMD; J Roper, PhD, DABR; J Wolf, CMD; O Kayode, MS, CMD, RT(R)(T); J Bradley, MD, W Stokes, MD; J Zhang, PhD, DABR
Poster Summary: Developing site-specific KBP models leads to significant improvements in plan quality and supports the development of distinct KBP models for specific clinical scenarios.
Authors: J Nguyen; I Diaz, CMD, RT; J Niska, MD; Y Borghero, MD; D Fetters, DMP
Poster Summary: A retrospective study comparing 3D/IMRT to VMAT for craniospinal irradiation, evaluating the differences in the treatment techniques and low doses to critical structures.
Authors: T Ngo, BS; D Pham, PhD, CMD, RT(T); N Kovalchuk, PhD
Poster Summary: RefleXion X1 utilizes a moving couch to allow for single-isocenter technique in pediatric CSI, potentially reducing translational errors associated with multi-isocenter setups.
Authors: D Martinez Garcia, BS; A Joseph, BS; B Baker, BS, MA; T Hoang, BS; C Wang, BS; P Castillo, BS, CMD; A Sobremonte, BS, CMD; J Baker, PhD, MEd, CMD; J Yang, PhD
Poster Summary: This study aims to expedite the treatment for bone metastasis patients by analyzing the feasibility of simulation-free treatment. The study uses the MR-Linac, Monaco, and online adaptive planning.
Authors: A Barbera, BS, CMD; J Antone, BS, CMD; D Carillo AS, RT(T); B Cox, MD; Y Ahmed, MS, CMD; K Vaiday, MS, CMD
Poster Summary: This TX planning combination minimizes the size of the target volume and decreases the dose to OARs when compared to the other planning techniques analyzed.
Authors: J Haider, PhD; T Haider, CMD
Poster Summary: The accuracy of point dose calculations in small fields in Radcalc could be significantly improved by accounting for electronic non-equilibrium in phantom scatter.
Authors: S Johnson, CMD, MS
Poster Summary: Evaluation of optimization structures used to control dose fall-off in proton planning.
Authors: J Loomis, BS; T Gergel, MD
Poster Summary: The purpose of this study is to evaluate the effect that automated planning software for breast plans has on dose constraints to organs at risk.
Authors: C Palomeque; S Basyouni; W Gee; H Wazir; J Sutton, CMD; D Hancock, BS, CMD; C Spicer, CMD; M Dehghanpour, EdD, CMD; Z Yu, PhD
Poster Summary: This study compares specific planning techniques for gynecological pelvic lymph node boost irradiation treatment to determine the most optimal technique and planning strategies.
Authors: S Robertson, PhD; T McNutt, PhD
Poster Summary: Optimization with predicted dose objectives is more efficient than Auto planning in generating high-quality plans with clinically acceptable OAR sparing.
Authors: A Wexler, PhD; J Evans, RT(T)
Poster Summary: Patients with complex body contours who require bolus for treatment can benefit from brass bolus. The non-reflective brass bolus can be used with the surface guidance camera system. Knowing the physician preference for bolus thickness, placement, and modality is essential for accurate application and treatment delivery.
Authors: A Banskota, RT(T); S Mossahebi, PhD; J Jatczak, CMD; M Steinberg, CMD
Poster Summary: This study shows that the proton plan of breast cancer patients with TE compared to VMAT plan can better spare the critical OARs.
Authors: J Strang, BS; G Davies, PhD, DABR; C Glide-Hurst PhD, DABR, FAAPM
Poster Summary: A study reviewing the dosimetric impact on total lung dose and other endpoints using various margins on multi-target intrathoracic patients treated with a single isocenter.
Authors: J James, BS; A Markovic, PhD, FAAPM
Poster Summary: This study focuses on the feasibility of making a standardized set of silicone boluses that could be reused on breast patients and provide acceptable conformity, precluding the need for manufacturing a custom bolus per patient. The study was done using phantom breasts and various sizes of molded silicone breast boluses.
Authors: M Goss, MS, DABR
Poster Summary: The Comparison of Collapsed Cone and Monte Carlo Algorithms in Tangential Breast Planning
Authors: T Hamilton, MBA, RT(R)(T)(CT); J Wolf, CMD; J Roper, PhD, DABR
Poster Summary: Noncoplanar-oblique arc arrangements deserve the most consideration when a more simplistic arc arrangement is inadequate at sparing critical OAR’s in lung SBRT treatment planning.
Authors: J Nguyen; Q Wang, PhD; L Ta; A Valdez; J Ohrt, MS, DABR; D Hancock, BS, CMD; L Simmons, MS, CMD
Poster Summary: This study investigated the effects of larger gantry arc spacing on target coverage, OAR dose, homogeneity, MUs, and integral dose for a variety of sites.
Authors: M Troeung, BS; P Fisher, CMD; X Shao, PhD, DABR; C Anderson, MD
Poster Summary: The MD Anderson Cancer Center Acute Cardiac Event Risk Calculator was used to evaluate the cardiac risk of breast cancer patients after receiving radiation therapy.
Authors: E Makdasy Hana, MSc/Certificate; B Yi, PhD; S Chen, PhD; M Guerrero, PhD; K Jiang PhD
Poster Summary: Based on the results of the four patients, compared to the HDR interstitial plans, VMAT plans offer improved target coverage and similar dose inhomogeneity but increase the dose to the rectum. Therefore, VMAT may be a feasible alternative for GYN cancer patients unwilling or unqualified for HDR interstitial brachytherapy
Authors: A Essadok PhD; S Yahyaoui, MD; K Mahjoubi, MD; G Noubigh, MD; L Ben Salem, MD; Besbs, Pr; C Masr, MD
Poster Summary: Three possibilities of choosing of the isocenters in nasopharyngeal carcinoma's (UCNT) treatment plans in intensity modulated radiation therapy (IMRT) SW. The choice has a great impact in GTV,CTV and PTV coverage. For an eventual setup variation, this choice affects directly the dosimetric parameters for OAR and the Targets volumes.