Dear Readers,
I cordially invite you to explore our first issue of 2026, JCB 1/2026 (January-March) that features twelve incredibly diverse manuscripts and topics: a letter to the editor, seven clinical papers, two case reports, and two important reviews.
Since 2009, we have been publishing fully open-access articles available electronically and downloadable, so there is no need for hard copies. Our publisher decided to switch from six to four journal issues per year. It means I will have the opportunity to write a word to our readers a bit less frequently. However, we are in constant contact through our social media, i.e., jocb.eu, FB, LinkedIn, and X platform. The final important information is that the author(s) of the submitted and accepted article(s) are required to pay an article processing charge (APC) of 350 EUR/1,500 PLN for papers submitted after April 25, 2026. The APC only applies if the article is accepted for publication after peer review and possible revision of the manuscript. There are no other charges involved.
As you are probably aware, Generation Beta, children born between 2025 and 2039, are the offspring of younger Millennials and older Generation Z. This is the first generation to be completely immersed in artificial intelligence (AI), advanced robotics, and virtual reality from birth. Related to that, upon the issue’s closure, Sarath Vijayan et al. (USA) submitted an up-to-date systematic review of the use of AI in brachytherapy. The studies reviewed demonstrated that AI may produce clinically acceptable planning data in significantly less time than presently required. Although current literature remains largely retrospective, AI has the potential to reduce human effort and increase efficiency in repetitive tasks, so we should focus on identifying the best areas in our daily practice to adopt AI-based improvements. Refer also to [1-4].
I wish to highlight the second special review article, a milestone for the Polish Brachytherapy Society (PBS). Artur J. Chyrek et al. (Poland) presented clinical recommendations, which are the first national expert consensus of the PBS on radical HDR-BT for prostate cancer. Emerged from a multidisciplinary panel of Polish radiation oncologists with extensive experience in prostate brachytherapy, the guidelines provide a comprehensive, evidence-informed framework to harmonize clinical practice, support decision-making, and improve comparability of outcomes...


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