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CION Cancer Clinics
TARE and Y-90 radioembolisation, explained | CION Cancer Clinics
TARE, also called Y-90 radioembolisation or SIRT, sends millions of tiny radioactive beads through the artery that feeds a liver tumour. The beads lodge in the tumour and treat it with radiation from the inside, while most healthy liver is spared. It needs a planning visit first and is done through a small puncture, not an open operation. This page explains who it suits and who it does not. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
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On this page
- What is TARE, and how does Y-90 treat a liver tumour?
- Which liver cancers is TARE used for?
- Why does TARE usually take two hospital visits?
- What do the words on a TARE plan mean?
- What do families worry about with radioactive beads?
- Who is TARE not suitable for, and what can this page not tell you?
- Common questions about TARE and Y-90
The short answer
What is TARE, and how does Y-90 treat a liver tumour?
TARE puts millions of tiny radioactive beads straight into the artery that feeds a liver tumour. The beads lodge inside the tumour and give it a strong dose of radiation from the inside, while most of the healthy liver is spared.
Where the name comes from
TARE stands for transarterial radioembolisation. Transarterial means the treatment travels through an artery. The beads carry a radioactive substance called yttrium-90, shortened to Y-90. You may also see it called SIRT, which means selective internal radiation therapy. All three names describe the same kind of procedure.
Why the liver suits this approach
Healthy liver gets most of its blood from the portal vein. Liver tumours take most of theirs from the hepatic artery. So when the beads are sent up the artery, they flow mainly into the tumour. The radiation travels only a very short distance from each bead, so it stays close to where the beads settle.
It is not an open operation
The doctor reaches the liver through a thin tube passed into an artery at the top of the leg or the wrist. You are awake but sedated. There is no large cut and the procedure is done by an interventional radiologist, a doctor who treats disease using scans to guide fine tubes.
Not every centre in Telangana offers TARE. Ask your team where it is done and whether your case has been discussed there.When it is considered
Which liver cancers is TARE used for?
It is almost always a treatment for cancer that is confined to the liver, or mostly in the liver, and cannot be removed by surgery.
Primary liver cancer
The cancer that starts in the liver itself, called hepatocellular carcinoma. TARE may be offered when tumours are too large or too many for surgery, and TACE is not a good fit.
Often discussed when
- A tumour has grown into a branch of the portal vein
- The tumour is large but liver function is still good
Bowel cancer that has spread to the liver
Usually after chemotherapy has been tried and the liver is where most of the cancer sits. It is a way to control the liver disease, not a replacement for the rest of the plan.
Bile duct cancer inside the liver
Called intrahepatic cholangiocarcinoma. Some teams use TARE here, but the studies so far are smaller, so ask how much experience the centre has.
Slow-growing neuroendocrine tumours
These can spread to the liver and stay there for a long time. TARE is one of several ways to control them, alongside medicines and other liver-directed treatments.
Not sure whether this applies to you?
Ask an oncologistThe pathway
Why does TARE usually take two hospital visits?
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Blood tests and a detailed liver scan
The team checks how well your liver and kidneys are working, and maps exactly where the tumours sit and how big they are.
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The mapping visit
A thin tube is passed into the liver artery. Small blood vessels that lead away from the liver, towards the stomach or bowel, may be blocked so beads cannot drift there later.
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The lung shunt scan
A harmless tracer is injected during mapping and a scan shows how much would slip through the liver to the lungs. If too much would reach the lungs, TARE may not be safe.
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Planning the dose
A physicist and the doctors work out the radiation dose for your liver and your tumour. This is why the treatment is a separate day.
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The treatment visit
The tube goes back into the same artery and the beads are released. Most people go home the same day or the next morning.
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The check scan and follow-up
A scan soon after confirms where the beads settled. Scans some weeks to months later show how the tumour has responded.
On your report
What do the words on a TARE plan mean?
- Microspheres
- The tiny beads that carry the Y-90. Each is far smaller than a grain of sand.
- Lung shunt fraction
- The share of beads that would pass through the liver into the lungs. A high value can rule TARE out.
- Mapping angiogram
- The first, planning procedure that pictures the liver arteries with dye before any beads are given.
- Child-Pugh score
- A grading of how well the liver is working. A better score makes TARE safer.
- Radiation segmentectomy
- A high dose aimed at one small segment of the liver, used for a single tumour that cannot be removed.
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Commonly believed
What do families worry about with radioactive beads?
"He will be radioactive, so the grandchildren must stay away for weeks."
The radiation stays mostly inside the liver and fades with time. Your team will give written guidance on close contact with small children and anyone pregnant for a short period. Ordinary family life at home carries on.
"TARE is the same as having radiotherapy from a machine."
Both use radiation, but TARE delivers it from inside the tumour through the blood supply. It is planned very differently, and having had one does not always rule out the other. Ask your team about your case.
"If it is newer and more expensive, it must work better than TACE."
Studies comparing the two have not shown one clearly ahead for everyone. The team picks by the size and spread of the tumour, the blood vessels involved and how well the liver is working.
"Once the beads are in, no other treatment is needed."
TARE treats the liver only. Many people still need medicines, further liver treatment or scans for a long time afterwards. It is one part of a plan.
!
After TARE, these cannot wait
Tiredness, a mild temperature and some discomfort are common in the first days. Go to the emergency department the same day if there is severe tummy pain, vomiting blood, black stools, yellowing of the skin or eyes, a high fever with shivering, or new breathlessness. Say that the person has recently had radioembolisation of the liver.
Being straight with you
Who is TARE not suitable for, and what can this page not tell you?
TARE is usually not offered when the liver is already failing, when there is a lot of fluid in the tummy, or when the bilirubin on the blood report is high. It is also avoided when the mapping visit shows too many beads would reach the lungs or gut.
When cancer has spread widely
If the cancer is outside the liver in several places, treating only the liver may not help much. Treatment that works through the whole body is then usually more useful, and the team will explain why.
What your team weighs
The decision comes from the type of cancer, how many tumours there are, the blood vessels involved, liver function, your general strength and what has already been tried. That is a decision for your treating team and tumour board, not for this page.
What this page cannot tell you
It cannot tell you whether TARE will shrink your tumour or how long any effect will last. It also cannot give you a cost, because that depends on the bead type, the dose and your scheme or insurance.
Questions we are asked
Common questions about TARE and Y-90
Is TARE done under general anaesthesia?
Usually not. Most people are awake with sedation to help them relax, and local anaesthetic numbs the spot where the tube goes in. You will be asked to lie still for the procedure and for a few hours afterwards so the artery can seal. Your team will tell you about eating and drinking beforehand.
Does it hurt?
You may feel pressure where the tube goes in, and some people get tummy discomfort or cramping. Afterwards, tiredness, feeling sick and a poor appetite are common for a week or two. Pain relief and anti-sickness medicines are given. Tell the team early if the pain is building rather than settling.
How is TARE different from TACE?
TACE sends a chemotherapy drug into the tumour and blocks its artery. TARE sends radioactive beads that mainly work through radiation and block the vessels much less. That is why TARE can sometimes be used when a tumour has grown into the portal vein. The side effects and planning also differ.
Can I travel home to my district the next day?
Many people do, once the team is happy with the puncture site and how they feel. Plan for someone to travel with you. Ask before you leave what to do if a problem starts at home, and where your nearest emergency department is, so you are not deciding that at night.
Can TARE be repeated?
Sometimes. A different part of the liver may be treated at a later date, and occasionally the same area again. There is a limit to how much radiation the liver can safely take, so repeat treatment depends on the dose already given, liver function and how the tumour has responded.
What will I need to avoid afterwards?
Your team will give written instructions. These usually cover close contact with small children and anyone pregnant for a short time, and rest while tiredness lasts. Some people are given a stomach-protecting medicine. Do not stop or change your usual medicines without asking the team first.
Can TARE make surgery possible later?
Occasionally. In some people the treated part of the liver shrinks while the untreated part grows, which may later make an operation or a transplant an option. This is not the usual aim, and your team will tell you if it is part of the thinking in your case.
Is TARE covered by Aarogyasri or insurance?
Coverage varies by scheme, policy and centre, so check before planning. Aarogyasri, CGHS, ECHS, EHS and cashless insurers each have their own rules for liver-directed treatment. Call the helpline with your card or policy details and ask for the treatment to be checked against your own cover.
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Sources
- American Cancer Society — Embolization therapy for liver cancer
- NICE — Selective internal radiation therapies for treating hepatocellular carcinoma (TA688)
- Cancer Research UK — Treatment for liver cancer
- National Cancer Institute — Liver cancer treatment (PDQ), patient version
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
TACE vs TARE: How They DifferChemotherapy and blocking, or radioactive beadsTACE: Chemoembolisation of the LiverThe other main liver-directed optionLiver Function Before and After EmbolisationThe blood tests that decide whether it is safeTACE and TARE Cost in HyderabadIndicative ranges and what schemes cover
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