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Mashup Score: 22Pectoralis major radiation myonecrosis after lung stereotactic body radiation therapy - 4 month(s) ago
A 64 year old male smoker (0.25 ppd for 40 years) with known COPD (FEV1 <1 L) undergoing surveillance imaging for multiple indeterminate lung nodules since 2019 was found to have a growing FDG avid right posteromedial upper lobe spiculated nodule on imaging in 2022. He underwent CT-guided biopsy demonstrating adenocarcinoma, EGFR equivocal, ALK negative, PD-L1 5%, and next-generation sequencing negative for actionable mutations. PET-CT showed two additional FDG avid suspicious nodules, left anterior upper lobe and right posterolateral upper lobe.
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Mashup Score: 2Adjuvant Radiotherapy for Salivary Duct and Epithelial Myoepithelial Salivary Carcinoma - 4 month(s) ago
Salivary Duct Carcinoma (SDC) and Epithelial Myoepithelial Carcinoma (EMC) are unusual subtypes of salivary gland cancer. As with other salivary gland tumors, surgical resection is the preferred initial treatment when resection is technically feasible and expected morbidity is acceptable. Following gross total resection, it is unclear if the indications for adjuvant radiation therapy (RT), RT dose and target guidelines should be the same as for the more common types of salivary gland cancer. The role of chemotherapy in the adjuvant setting is even less well defined.
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Mashup Score: 2Adding a Small Field of View for Increased Resolution in Contouring: An Effective and Quick Method - 4 month(s) ago
Image resolution is paramount when contouring complex anatomy, as in head & neck planning. It is notable that when diagnostic radiologists perform a CT scan of the neck, they always use a small field of view (SFOV) because it gives the best image resolution. When planning for radiation treatment, however, it is also necessary to have a large field of view (LFOV) in order to provide a comprehensive external contour that allows for radiation dose calculation. Here we present a simple method to obtain both a SFOV and LFOV at the time of CT simulation.
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Mashup Score: 1
To assess whether an association exists between surgical localization technique and lumpectomy cavity size on radiotherapy planning CT scan.
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Mashup Score: 0
Background: Despite serving as a critical communication tool, radiation oncology prescriptions are entered manually and prone to error. An automated prescription checking system was developed and implemented to help address this problem.Methods: Rules defining clinically appropriate prescriptions were generated, examining specific types of errors: 1) Unapproved dose per fraction for a given disease site; 2) Dose per fraction too large for non-stereotactic treatment technique; and 3) Dose per fraction too low.
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Mashup Score: 11A Dose Accumulation Assessment of Alignment Errors During Spatially Fractionated Radiation Therapy - 4 month(s) ago
Spatially fractionated radiotherapy (SFRT) techniques produce high-dose peaks and low-dose valleys within a tumor. Lattice stereotactic body radiation therapy (SBRT) is a form a SFRT delivered across five fractions. Due to the high spatial dose gradients associated with SFRT, it is critical for fractionated SFRT patients to be aligned correctly for treatment. Here we investigate the dosimetric impact of daily alignment uncertainty through a dose accumulation study.
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Mashup Score: 8Evaluating the Quality-of-Life Effect of Apical Spacing with Hyaluronic Acid Prior to Hypofractionated Prostate Radiation Therapy: A Secondary Analysis - 4 month(s) ago
Recently, a randomized trial demonstrated that a hyaluronic acid (HA) spacer placed before prostate hypofractionated intensity modulated radiation therapy improved rectal dosimetry and reduced acute grade 2+ gastrointestinal toxicity. However, 26.5% of patients receiving the spacer experienced a minimal clinically important decline (MCID) in bowel quality-of-life (QOL). The purpose of this study is to evaluate whether certain characteristics of the rectal spacer, as determined on postimplant imaging, were associated with change in bowel QOL at 3-months.
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Mashup Score: 2
Oligometastatic disease has expanded the indications for nonspine bone stereotactic body radiation therapy (NSB SBRT). We investigated whether optical surface monitoring systems (OSMS) could enable tattoo-less setup and substitute for 2-dimensional/3-dimensional or cone beam computed tomography (CBCT)-based mid-imaging in NSB SBRT.
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Mashup Score: 9
Press release about a guideline developed by an expert task force for radiation oncologists treating patients with breast cancer
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Mashup Score: 0
There is limited data on the long-term outcomes of ultrahypofractionated radiation therapy in high-risk prostate cancer. The FASTR and FASTR-2 trials were designed to assess the tolerability of stereotactic ablative radiation therapy (SABR) in this context. Herein, the long-term results are reported.
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New from #practicalRO: Pectoralis major radiation myonecrosis after lung stereotactic body radiation therapy. https://t.co/K7IeqZqnnN https://t.co/Z0ABObwuqw