SIRT therapy in Republic of Korea: Our Best Clinics and Costs 2026

Selective Internal Radiation Therapy (SIRT) is a targeted treatment for liver cancer that delivers radioactive yttrium-90 microspheres through the hepatic artery. It uses the liver dual blood supply to destroy tumors with high-dose beta radiation while protecting healthy tissue.

• Targeted delivery: Microspheres lodge in small vessels feeding tumors, providing 40 times more radiation than external beams.
• Surgical mapping: A mandatory Tc-99m MAA scan ensures beads will not leak into the lungs or stomach.
• Treatment timeframe: Radiation remains active for 14 days and typically disappears completely after 30 days.
• Clinical outcome: The procedure can shrink inoperable tumors enough to allow for future transplants or resections.

Bookimed Expert Insight: South Korea clinical centers like Gangnam Severance Hospital use advanced digital imaging to manage complex liver anatomy. Our data indicates that Korean SIRT protocols often include a 3-day inpatient stay for monitoring. This specialized approach manages potential post-treatment liver inflammation more effectively than standard outpatient models used elsewhere.

Patient Consensus: Patients report that while post-treatment fatigue and liver enzyme spikes occur, the ability to combine SIRT with systemic therapies like sorafenib offers significant hope. Many recommend using translator apps to navigate technical medical discussions during the 3-month follow-up PET-CT scans.

Candidates for SIRT in Korea typically include patients with unresectable hepatocellular carcinoma or liver-dominant metastatic disease. Eligible patients must have well-preserved liver function, specifically Child-Pugh Class A or B7, and maintain a high performance status with an ECOG score of 0 or 1.

• Liver function: Candidates must have bilirubin levels under 2.0 mg/dL without active encephalopathy.
• Vascular mapping: A mandatory hepatic angiography and MAA scan assess lung shunting fractions.
• Imaging trilogy: Korean centers require dedicated liver protocol CT, MRI, and abdominal ultrasound.
• Laboratory work-up: Baseline tests include CBC, coagulation studies, tumor markers, and hepatitis serology.

Bookimed Expert Insight: While many countries use biopsy for confirmation, Korean centers like Gangnam Severance Hospital often rely on advanced digital imaging and tumor markers for SIRT eligibility. This streamlined diagnostic approach speeds up the approval process, though patients should still plan for a 3-week wait for Y-90 isotope arrival.

Patient Consensus: Patients often find that while mild portal vein thrombosis is acceptable, advanced disease or Child-Pugh Class C results in immediate disqualification for safety reasons.

SIRT main risks include post-embolization syndrome, characterized by fatigue, nausea, and abdominal pain. Most symptoms resolve within two weeks. Less than 5% of patients experience serious complications like gastrointestinal ulcers, radiation pneumonitis, or liver dysfunction from non-target radiation. Pre-procedure mapping minimizes these risks.

• Post-embolization syndrome: Temporary fatigue, mild fever, and nausea occurring during tumor cell destruction.
• Gastrointestinal ulceration: Occurs in 2-5% of cases if microspheres migrate to the stomach.
• Radiation pneumonitis: Lung inflammation caused by beads shunting from the liver to lungs.
• Liver function changes: Potential jaundice or fluid buildup arising 4-8 weeks after SIRT treatment.

Bookimed Expert Insight: Leading centers like Gangnam Severance Hospital use advanced digital imaging to map liver vessels. This mapping identifies potential shunts before the actual radiation dose. High-volume Korean hospitals leverage JCI-accredited protocols to ensure beads stay within the target. This technical precision significantly lowers the risk of non-target organ damage.

Patient Consensus: Many patients describe the first 2 weeks as having a lingering, bad flu. They recommend planning 4-6 weeks off work to manage the extreme tiredness and nausea effectively.

SIRT therapy in South Korea follows a 3 to 7 day inpatient admission cycle. The process includes mapping angiography, Yttrium-90 microsphere injection under local anesthesia, and mandatory radiation isolation. Specialized centers like Gangnam Severance Hospital use advanced digital imaging to target liver tumors with high precision.

• Pre-treatment mapping: Surgeons perform angiography with Technetium-99m to check blood flow and lung shunting.
• Radiation isolation: Patients remain in lead-lined rooms for 3 to 5 days after treatment.
• Monitoring protocols: Medical teams conduct daily bloodwork and liver function tests during the stay.
• Recovery timeline: Hospital discharge occurs once radiation levels are safe, with CT follow-up in 1 month.

Bookimed Expert Insight: While many international centers offer outpatient SIRT, JCI-accredited hospitals in Seoul typically require a 5-day inpatient stay. This longer admission ensures immediate management of post-embolization syndrome symptoms. Patients benefit from 24-hour radiation badge monitoring and aggressive anti-nausea protocols standard in Korean oncology wards.

Patient Consensus: Expect symptoms like fever and nausea to peak around day 4. Patients recommend bringing books or tablets for the initial 3-day isolation when visitors are strictly prohibited.

Recovery after SIRT in South Korea involves managing post-embolization syndrome symptoms and radiation precautions. Patients typically experience fatigue, mild fever, and abdominal pain for 1 to 2 weeks. Specific restrictions include limiting close contact with children and avoiding heavy lifting to protect the catheter site.

• Physical activity: Avoid lifting over 5kg for 10 days to prevent insertion site bleeding.
• Radiation safety: Limit close contact with pregnant women for 2 to 7 days post-procedure.
• Symptom management: Expect post-embolization syndrome including fever up to 101°F and localized swelling.
• Hydration goals: Drink 2 to 3 liters daily to flush contrast dye and radiation.

Bookimed Expert Insight: South Korean JCI-accredited centers like Gangnam Severance Hospital often use advanced digital imaging for SIRT. Our data shows patients prioritize these smart clinics for their 24-hour discharge protocols. This high-efficiency approach minimizes hospital stays while maintaining strict 48-hour post-procedure monitoring.

Patient Consensus: Many note that fatigue in the first month is more intense than chemotherapy. They recommend tracking fevers daily and using light walks to help energy levels recover.

SIRT therapy is highly effective for inoperable liver tumors, showing response rates of 56% to 59% for primary liver cancer. Patients typically see initial results through tumor marker blood tests within 4 to 8 weeks. Full confirmation via CT or MRI scans occurs at 3 months.

• Early indicators: Blood tests for CEA or AFP markers show changes within 4-8 weeks.
• Standard imaging: Radiologists schedule follow-up CT or MRI scans 2-3 months post-treatment.
• Delayed shrinkage: Tumors often continue to decrease in size for 6-18 months after SIRT.
• Success rates: Advanced metastatic colorectal cancer typically shows response rates between 29% and 33%.

Bookimed Expert Insight: Top Korean facilities like Gangnam Severance Hospital use advanced digital imaging to track micro-responses. Choosing JCI-accredited centers in Seoul ensures access to these high-resolution scans. This technology helps distinguish between temporary post-radiation inflammation and actual tumor growth at the 8-week mark.

Patient Consensus: Many patients feel increased fatigue or abdominal pain during the first 2 weeks. Do not mistake these temporary side effects for the treatment failing before your first scan.

South Korea’s top-certified hospitals for Selective Internal Radiation Therapy (SIRT) include Asan Medical Center, Samsung Medical Center, and Gangnam Severance Hospital. These Seoul-based institutions hold JCI or KOIHA accreditation and maintain dedicated international centers with specialized nuclear medicine teams for complex liver cancer cases.

• Asan Medical Center: Ranked globally for oncology with hundreds of yearly SIRT radioembolization cases.
• Samsung Medical Center: Performs approximately 770 SIRT treatments with advanced hepatocellular carcinoma expertise.
• Gangnam Severance Hospital: A JCI-accredited facility offering multidisciplinary SIRT therapy within specialized oncology teams.
• Seoul National University: Features a premier nuclear medicine department and full digitalized radiation therapy.

Bookimed Expert Insight: Patient data shows a clear preference for JCI-accredited giants over smaller clinics for SIRT. While Kangbuk Samsung Hospital reports the highest procedure volume at nearly 900 cases, Asan Medical Center remains the primary choice for international patients due to its massive scale in organ transplant and oncology integration.

Patient Consensus: Seeking a teleconsultation for a second opinion before traveling is highly recommended. Patients emphasize prioritizing hospitals like Asan or Samsung while budgeting for dedicated international coordinators.