Selection of Proper Modality in Stereotactic Body Radiation Therapy for Hepatocellular Carcinoma
Journal of Liver Cancer
;
: 45-53, 2017.
Article
in English
| WPRIM
| ID: wpr-164273
ABSTRACT
BACKGROUND/AIMS:
As the optimal stereotactic body radiation therapy (SBRT) modality for hepatocellular carcinoma (HCC) has not been confirmed, we aimed herein to provide a practical guideline by our retrospective review.METHODS:
Thirty-nine patients with primary HCC who underwent liver SBRT via 3 modalities (helical tomotherapy [HT] 22, volumetric modulated arc therapy [VMAT] 13, Cyberknife 4) at our institution between July 2014 and July 2015 were included. Modalities were compared with regard to dose conformity index (CI), homogeneity index (HI), clinical results, and patient compliance.RESULTS:
VMAT SBRT had favorable conformity (CI 0.7±0.2), homogeneity (HI 1.1±0.0), and shortest treatment time (100.2±26.1 seconds). HT SBRT yielded good dosimetric outcomes, especially in conformity (CI 1.0±0.2). Although the Cyberknife SBRT synchrony system allowed real-time tumor targeting, the treatment time was longest (3,015.0±447.3 seconds), invasive pre-treatment procedures were required, and the HI (1.3±0.0) was lowest.CONCLUSIONS:
All 3 modalities yielded competent dosimetric planning parameters. VMAT SBRT was most appropriate for tumors with residual lipiodol or patients with poor conditions. HT SBRT is available for multiple or irregular targets. Cyberknife SBRT is recommended for carefully selected patients and tumors indicated for sono-guided fiducial insertion.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Radiotherapy
/
Retrospective Studies
/
Patient Compliance
/
Ethiodized Oil
/
Carcinoma, Hepatocellular
/
Radiotherapy, Intensity-Modulated
/
Liver
Type of study:
Practice guideline
/
Observational study
Limits:
Humans
Language:
English
Journal:
Journal of Liver Cancer
Year:
2017
Type:
Article
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