Computed tomography-guided radioactive iodine-125 seed implantation for liver malignancies in challenging locations

Author:

Li Lin12,Tian Shuhui3,Han Xujian24,Tian Jing3,Zhang Cunjing25

Affiliation:

1. Department of Operating Room, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China

2. Interventional Oncology Institute, Shandong University, Jinan, China

3. Department of Interventional and Minimally Invasive Oncology, The Second Hospital of Shandong University, Jinan, China

4. Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China

5. Dean Office, Jinan Vocational College of Nursing, Jinan, China

Abstract

ABSTRACT Aims: This study aimed to retrospectively assess the safety and efficacy of radioactive iodine-125 (I-125) seed implantation for liver malignancies in challenging locations. Materials and Methods: Between December 2015 and December 2021, 49 patients with 60 liver malignancies in challenging locations who underwent computed tomography (CT)-guided I-125 seed implantation were retrospectively analyzed. The primary endpoints included technical success rate and overall survival (OS), whereas the secondary endpoints included progression-free survival (PFS), disease control rate (DCR), objective response rate (ORR), and liver recurrence. Potential factors associated with liver recurrence were also evaluated. Results: The technical success rate was 100%. The median follow-up duration was 12 months (range, 2–68 months). The mean OS and PFS were 17.58 months (95% CI: 13.64–21.52 months) and 13.14 months (95% CI: 10.36–15.92 months), respectively. The 2-month, 6-month, and 1-year DCR and ORR were 97.96% and 93.88%, 93.75% and 77.08%, and 93.48% and 60.87%, respectively. The 6- and 12-month tumor recurrence rates were 20.41% and 28.26%, respectively. The Kaplan–Meier method was used to estimate the time of liver recurrence, with our results showing that patients with primary intrahepatic cholangiocarcinoma had an increased likelihood of having earlier liver recurrence. No major complications developed during follow-up. Conclusion: CT-guided radioactive I-125 implantation could be a safe and effective alternative with promising survival benefits and high local control rates for liver malignancies in challenging locations.

Publisher

Medknow

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