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SIR 2026

Traditional Poster

Interventional Oncology

Session: Traditional Poster Presentations

566 - Interventional Radiology in Multidisciplinary Liver Oncology Clinics: Evaluating Growth and Specialist Involvement

Monday, April 13, 2026
12:10 PM - 1:10 PM ET
Purpose: The aim of this study is to evaluate the role of interventional radiology (IR) in a multidisciplinary liver oncology clinic, focusing on growth, specialist involvement, and opportunities for care coordination as part of a quality improvement initiative.

Materials and Methods: With IRB approval, a retrospective analysis of a prospectively maintained database was performed for all patients seen in a dedicated liver oncology clinic from its inception in September 2021 through August 2025 and analyzed in consecutive 12-month periods. The clinic team comprised hepatology, surgery, medical oncology, and IR specialists. Primary outcomes included demographics, annual visit volumes, and specialist involvement. Initial visits were each patient’s first encounter; subsequent visits were follow-ups. Same-day visits with multiple providers were consolidated. Data analysis included descriptive statistics and chi-square tests.

Results: A total of 695 patients were seen, accounting for 1,519 clinic visits over the study period. Patient demographics included 63.7% (443/695) male patients with a median age of 69 years (IQR: 60-75).

Annual visit volume increased from 223 (2021-2022) to 429 (2022-2023, 92.4% growth) and 446 (2023-2024), before slightly declining to 421 (2024-2025), representing 88.8% overall growth and a compound annual growth rate of 23.6%.

Initial visits comprised 45.8% (695/1,519) of encounters, while 54.2% (824/1,519) were follow-up visits. The frequency of patient visits demonstrated that the median number of visits per patient was 1 (IQR: 1–3); 53.7% (373/695) had a single visit, while 25.3% (176/695) had ≥3 visits, reflecting variability in longitudinal follow-up.

Specialty utilization included hepatology 42.3% (643/1,519), IR 33.2% (504/1,519), medical oncology 30.6% (465/1,519), and surgery 2.6% (40/1,519), with 13.0% (198/1,519) visits lacking specialty assignment. Multidisciplinary care was more frequent at initial visits, occurring in 28.8% (155/539) of encounters compared with 15.9% (124/782) of follow-up visits (p< 0.001). Across all visits with available data, same-day multidisciplinary involvement was documented in 21.1% (279/1,321) visits.

Conclusion: IR was integral to the rapid growth and multidisciplinary utilization of a liver oncology clinic, accounting for one-third of visits and frequently contributing to same-day collaborative care. This model demonstrates how IR-driven multidisciplinary clinics can scale rapidly and highlights opportunities for quality improvement in patient retention and care coordination.