Mean Liver Dose Evaluation by Lyman NTCP Modeling With Stereotactic Body Radiation therapy to Minimize Radiation-Induced Liver Disease for Inoperable Hepatocellular Carcinoma

Author(s):  
M. Camborde ◽  
E. Vollans ◽  
C. Crumley ◽  
R. Ma ◽  
R. Kosztyla ◽  
...  
2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Jing Sun ◽  
Can Ouyang ◽  
Xiaoyun Chang ◽  
Aimin Zhang ◽  
Quan Wang ◽  
...  

Abstract Background To explore the survival and side effects of repeated CyberKnife stereotactic body radiation therapy (CK-SBRT) on hepatocellular carcinoma patients. Methods 24 HCC patients were collected at The Fifth Medical Center of PLA General Hospital from November 2011 to July 2016. They received second-course CK-SBRT with a prescribed dose of 50(48–55) Gy/5-8fx, and a single dose of 10 (7–11) Gy/fx. Cumulative overall survival rates (OS), progression-free survival rates (PFS) and local control rates (LC) were calculated by Kaplan-Meier method. Results All patients finished their radiotherapy plans. The 1-,2- and 3-year cumulative OS rate were 95.8,81.1 and 60.8%. The 1-,2- and 3-year LC rate were 95.5,90.7 and 90.7%, respectively. The 1-, 2- and 3-year PFS were 74.8, 49.2 and 39.4%, respectively. 16 patients complained of fatigue during second-course therapy, 2 patients showed Grade 2 gastrointestinal reaction, 1 patient was diagnosed radiation-induced liver disease and none died. PFS was significantly higher in the interval time < 12 months group than in the interval time ≥ 12 months group (p = 0.030). Conclusions It is preliminarily believed that re-CK-SBRT is an effective and safe treatment for HCC patients, but the treatment criteria should be strictly controlled.


2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 428-428
Author(s):  
Pablo Munoz-Schuffenegger ◽  
Aisling S Barry ◽  
Eshetu G. Atenafu ◽  
John Kim ◽  
James D. Brierley ◽  
...  

428 Background: In patients with hepatocellular carcinoma (HCC), macrovascular invasion (MVI) is associated with a poor prognosis. This study describes long-term outcomes of patients with HCC and MVI treated with stereotactic body radiation therapy (SBRT). Methods: Patients with HCC and MVI who were treated with SBRT from January 2003 to December 2016 were eligible for analysis. Patients who had extrahepatic disease or who had prior liver transplant were excluded. Demographical, clinical, and treatment variables were collected, under IRB approval. The degree of vascular invasion was quantified into two categories: main portal vein branch/IVC and distal portal/hepatic vein. Results: 128 eligible pts with HCC and MVI were treated with SBRT ( > 4.5 Gy/fraction). The median age was 61 yrs (range: 39 to 90 yrs). Underlying liver disease was hepatitis B in 23%, hepatitis C in 45%, other in 20%; no known liver disease in 12%. Baseline Child-Pugh (CP) score was A5 in 67%, A6 in 20%, B7 or higher in 13%. 35% received previous liver-directed therapies. Median HCC volume was 153.7 mL (range: 3.9 to 1,813.5 mL). Median AFP was 205 ug/L (range: 1 to 171,154 ug/L). Median SBRT dose was 33.3 Gy (range: 27 to 54 Gy) in 6 fractions. Local control at 1 year was 87.4% (95% CI 78.6 to 96.1%). SBRT dose or HCC volume were not significant on univariate analysis. Median overall survival was 18.3 months (95% CI 11.2 to 21.4 months). ECOG PS > 1 (HR:1.73, p = 0.03), CP score (HR: 1.67, p = 0.04), and treatment between 2004 and 2010 (HR: 2.28, p = 0.0009) were significant on multivariable analysis, while SBRT dose, HCC volume, and degree of vascular invasion were not. In 35 patients who received sorafenib following SBRT, median survival was 38.5 months (95% CI 17.23 to 43.16 months). 4/128 pts. developed GI bleeding and 35/112 patients with liver function evaluable at baseline and 3 months had a deterioration in CP class. Conclusions: SBRT was associated with excellent outcomes for patients with HCC and MVI. Randomized phase III trials of SBRT are warranted and ongoing.


2020 ◽  
Vol 19 ◽  
pp. 153303382093700
Author(s):  
Yi-Xing Chen ◽  
Yuan Zhuang ◽  
Ping Yang ◽  
Jia Fan ◽  
Jian Zhou ◽  
...  

Purpose: To assess the efficacy and safety of stereotactic body radiation therapy using an abdominal compression technique and modified fractionation regimen (5-10 fractions) in patients with small-sized hepatocellular carcinoma. Methods: A total of 101 patients with small-sized hepatocellular carcinoma treated with stereotactic body radiation therapy using an abdominal compression technique and modified fractionation regimen were registered between June 2011 and June 2019 in our hospital. A total dose of 48 to 60 Gy was applied over 5 to 14 consecutive days. Liver motion was controlled by abdominal compression, and a helical intensity-modified radiation therapy-based stereotactic body radiation therapy administrated in tomotherapy platform. Results: The median follow-up period was 23.2 months (range: 4.1-99.2 months). Complete response and partial response were observed in 63 (62.4%) patients and in 24 (23.8%) patients, respectively. At the time of our analysis, the 1-, 3-, and 5-year local control rates after stereotactic body radiation therapy were 96.1%, 89.0%, and 89.0%, respectively. However, logistic regression analysis revealed no correlation between the biologically effective dose and 3-year local control rates. The 1-, 3-, and 5-year overall survival rates were 96.9%, 69.0%, and 64.3%, respectively. For patients who were treatment-naive, the 1-, 3-, and 5-year overall survival were 96.3%, 82.0%, and 82.0%, respectively. No patients experienced classic radiation-induced liver disease or nonclassic radiation-induced liver disease after stereotactic body radiation therapy completion. Conclusions: When using an abdominal compression technique and modified fractionation regimen (5-10 fractions) based on helical intensity-modified radiation therapy, stereotactic body radiation therapy led to a lower toxicity and comparative rate of local control and overall survival for patients who with small-sized hepatocellular carcinoma.


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