Stereotactic Articles

To establish the feasibility of a randomised clinical trial comparing stereotactic ablative radiotherapy (SABR) to the prostate-only (P-SABR) or to prostate plus pelvic lymph nodes (PPN-SABR) in patients with unfavourable intermediate- or high-risk localised prostate cancer and explore potential toxicity biomarkers.

Purpose: The oligometastatic state is a proposed entity between localized cancer and widely metastatic disease, comprising an intermediate subset of metastatic cancer patients. Most data to support locally-directed treatment, such as stereotactic ablative radiotherapy (SABR), for oligometastases are from retrospective institutional reports.

/Objective(s): Low dose rate (LDR) brachytherapy and Stereotactic Body Radiation Therapy (SBRT) have both shown acceptable outcomes in the treatment of low and intermediate risk prostate cancer. Minimal data has been published directly comparing rates of biochemical control and toxicity with these two modalities.

Advances in imaging have changed prostate radiotherapy through improved biochemical control from focal boost and improved detection of recurrence. These advances are reviewed in the context of prostate stereotactic body radiation therapy (SBRT) and the ARGOS/CLIMBER trial protocol.

Objectives: To report feasibility, early toxicity, and PSA kinetics following gantry-based, stereotactic radiotherapy (SBRT) boost within a prospective, phase 2, multicenter study (PROMETHEUS: ACTRN12615000223538).

In patients presenting with limited nodal recurrence following radical prostatectomy (RP), stereotactic body radiotherapy (SBRT) results might improve with a better case selection.

Single-institution retrospective analysis of patients presenting with 1-3 lymph node (LN) recurrences (N1 or M1a) on 18F-Choline PET/CT.

Despite the high efficacy of high-dose-rate brachytherapy boost (HDRB) in the management of prostate cancer (PC), use of this approach is declining. Similar dosimetry can be achieved using stereotactic body radiotherapy or "virtual HDRB" (vHDRB).

Approximately 40-70% of biochemically recurrent prostate cancer (PCa) is oligorecurrent after prostate-specific membrane antigen (PSMA) positron emission tomography (PET) staging. Metastasis-directed radiotherapy (MDT) of PSMA-positive oligorecurrence is now frequently used, but the role of concurrent androgen deprivation therapy (ADT) remains unclear.

To evaluate the safety and efficacy of stereotactic radiotherapy (SRT) in metastatic RCC (mRCC) patients concurrently receiving targeted therapy or immunotherapy.

Data on mRCC patients was extracted from a retrospective international multicenter register study (TOaSTT) investigating SRT concurrent (≤30d) to TT/ICI.