They are different from those of external beam therapy in that both HDR and LDR sources have rapid dose falloffs, typically 4 cm away from the source. The sources chosen for brachytherapy can be categorized into high-dose rate (HDR) defined as greater than 12 Gy per hour and lose-dose rate (LDR) defined as less than 2 Gy per hour. Unlike external radiation beams that are generated by machines and delivered to the patient at a distance, brachytherapy consists of placing sealed radioactive sources close to or in contact with the area of treatment of the patient. We examined campaigns with significant and lasting impacts and noticed that they tend to be celebrity-related/celebrity-endorsed, focused on sharing personal experiences, and occur with regular frequency.Ĭonclusions: To increase public awareness of brachytherapy, the American Brachytherapy Society (ABS) can consider tie-ins with events and people with high search traffic (such as Breast Cancer Awareness Month), having celebrities/influencers who were treated with brachytherapy to provide testimonials, encouraging patient engagement and sharing of their experiences with brachytherapy on social media, and setting up recurring brachytherapy publicity events. Results: We identified three major types of social media campaigns/events: those that have a short-term impact but little long-term impact, those that have both short-term and long-term impacts, and those with little short-term or long-term impact. We used descriptive statistics (mean ± standard deviation (SD)) to describe the search results, independent t-tests to compare means before and after campaigns/announcements for short-term effects, and one-way ANOVA (or Kruskal-Wallis test when appropriate) to compare mean values across distinct time periods for long-term effects. Methods and materials: Using Google Trends (Google LLC, Mountain View, CA, USA), we analyzed the impacts on the public interest of three brachytherapy-related social media campaigns/publicity events and compared and contrasted them with three other campaigns/publicity events. As regards cancer care, social media has been successfully used as a platform for information dissemination, psychosocial support, and patient engagement and empowerment. Social media has an increasing presence in health promotions. Introduction: The utilization and public awareness of brachytherapy are both declining.
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