Stereotactic Body Radiation Therapy for Hepatocellular Carcinoma

Stereotactic body radiation therapy (SBRT) has emerged as a precise, non-invasive modality for treating hepatocellular carcinoma (HCC), especially in patients unsuitable for resection or ablation. By delivering high radiation doses in a small number of fractions, SBRT achieves sharp dose gradients that conform tightly to tumour contours, minimising exposure of healthy liver tissue. Image guidance and motion management techniques—such as fiducial tracking, respiratory gating and volumetric-modulated arc therapy—ensure accurate targeting of tumours that move with respiration. Clinical series have documented local control rates exceeding 80 per cent at two years, with overall survival benefits comparable to other locoregional therapies in carefully selected patients. Treatment planning incorporates liver function assessment (for example via Child-Pugh classification) and dose–volume constraints to mitigate the risk of radiation-induced liver injury. Ongoing dose-escalation studies and combination strategies—such as SBRT with transarterial chemoembolisation—seek to optimise the therapeutic ratio. As technological refinements continue and multidisciplinary protocols mature, SBRT is increasingly recognised as an important option within global HCC management pathways.

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Stereotactic Body Radiation Therapy for Hepatocellular Carcinoma publication trend

The graph below shows the total number of articles in stereotactic body radiation therapy for hepatocellular carcinoma across all publications each year (not limited to Nature Index journals).

Technical terms

Stereotactic body radiation therapy (SBRT): A high-precision radiotherapy delivering large radiation doses in few fractions to extracranial targets, utilising image guidance and motion management to spare normal tissue.

Hepatocellular carcinoma (HCC): The most common primary liver cancer, often arising in cirrhotic livers and managed via surgery, transplantation, locoregional or systemic therapies.

Child-Pugh classification: A scoring system assessing liver function in cirrhosis, incorporating clinical and biochemical parameters to predict treatment tolerance.

Transarterial chemoembolisation (TACE): A locoregional procedure that delivers chemotherapy directly to liver tumours via the hepatic artery, followed by arterial embolisation to induce ischaemia.

Volumetric-modulated arc therapy (VMAT): A radiotherapy delivery technique using continuous gantry rotation and dynamic multileaf collimation to modulate dose intensity and shape.

Biologically effective dose (BED): A metric that accounts for total dose and fractionation in radiotherapy, facilitating comparison of different dose schedules.

References

1. Long-term effect of stereotactic body radiation therapy for primary hepatocellular carcinoma ineligible for local ablation therapy or surgical resection. Stereotactic radiotherapy for liver cancer. BMC Cancer (2010).
2. High-dose stereotactic body radiotherapy correlates increased local control and overall survival in patients with inoperable hepatocellular carcinoma. Radiation Oncology (2013).
3. Radiation-induced liver disease after stereotactic body radiotherapy for small hepatocellular carcinoma: clinical and dose-volumetric parameters. Radiation Oncology (2013).
4. Stereotactic body radiation therapy with or without transarterial chemoembolization for patients with primary hepatocellular carcinoma: preliminary analysis. BMC Cancer (2008).
5. Stereotactic body radiation therapy (SBRT) for definitive treatment and as a bridge to liver transplantation in early stage inoperable Hepatocellular carcinoma. Radiation Oncology (2017).
6. Phase I dose-escalation study of helical intensity-modulated radiotherapy-based stereotactic body radiotherapy for hepatocellular carcinoma. Oncotarget (2016).
7. Stereotactic body radiation therapy for hepatocellular carcinoma: From infancy to ongoing maturity. JHEP Reports (2022).
8. Stereotactic body radiation therapy using a respiratory-gated volumetric-modulated arc therapy technique for small hepatocellular carcinoma. BMC Cancer (2018).
9. Stereotactic Body Radiation Therapy vs. Transarterial Chemoembolization in Inoperable Barcelona Clinic Liver Cancer Stage a Hepatocellular Carcinoma: A Retrospective, Propensity-Matched Analysis. Frontiers in Oncology (2020).