There has been a decrease in the use of radiotherapy for patients with localized RCC, although patients with more aggressive disease were more likely to receive radiation. Modern trials are needed to better identify the role of radiation in the management of these patients.
(P071) Socioeconomic Disparities in Baseline Magnetic Resonance Imaging (MRI) Utilization and Imaging Characteristics for Prostate Cancer (PCa) Patients Undergoing Radiotherapy
In this urban, academic center cohort, PCa patients of lower SES were significantly less likely to undergo staging MRI, particularly in the low-risk group. No differences were found in dominant IPL presence, area, ECE, or SVI, except in the low-risk group. Further investigation is required to better understand trends in pretreatment MRI utilization and dominant IPL characteristics differing by SES.
(P085) Oncologic and Functional Outcomes of Salivary Gland Tumors (SGTs) With Pathologically Proven Perineural Invasion (PNI)
A multimodality approach to SGTs with PNI provides excellent LRC. Further studies are warranted to identify the patients at higher risk of LRF and DMs to optimize their management.
(P005) Ultrasensitive PSA Identifies Patients With Organ-Confined Prostate Cancer Requiring Postop Radiotherapy
Integrating uPSA into the immediate and continued frequent surveillance of RP patients with organ-confined cancer will improve postop RT outcomes by identifying failures sooner and promoting an early salvage strategy.
Almost half of current radiation oncology residents do not have a mentor. Of those with mentors, most established relationships early in their training, during PGY-2 or prior. Therefore, it is imperative to intervene early in the training process to produce successful mentorship experiences. Many residents require more than one active mentor, which enables multiple goals to be met, such as career development, increasing one’s research portfolio, networking, and coping with residency.
Radiotherapy improves both local and locoregional control in patients with desmoplastic melanoma of the head and neck, regardless of margin status.
(S028) Patient-Level DNA Damage and Repair Pathway Profiles Are Prognostic After Prostatectomy for High-Risk Prostate Cancer
Patient-level DDR pathway profiling revealed distinct clusters. Individual DDR pathways and a composite biomarker showed strong prognostic performance with the long-term outcomes of metastatic progression and OS, which may be useful for risk stratification of high-risk prostate cancer patients aged
(S048) Identification of Excellent and Poor Prognostic Groups After Stereotactic Radiosurgery for Spinal Metastasis: Secondary Analyses of Mature Prospective Trials
We present a survival prediction model that has identified patient subgroups with poor (Group 4) to excellent (Group 1) prognoses. In addition, pretreatment symptoms were predictive of survival and correlated with the prediction of the model. If validated, we believe that this model, possibly in conjunction with patient symptoms, may aid in determining optimal treatment strategies.
Patients with Medicaid coverage or without insurance are more likely to not receive radiation after lumpectomy.
(P046) Prediction of Pathologic Complete Response After Neoadjuvant Chemoradiation Therapy for Rectal Cancer Using Radiographic Texture Analysis
Several radiographic texture features from the pre-RT CT scan were identified as potential predictors of pCR in rectal cancer patients after neoadjuvant chemoradiation therapy. Future work will focus on validating these features in a larger dataset.