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https://www.readbyqxmd.com/read/28636658/efficacy-and-safety-of-ultrasound-guided-implantation-of-fiducial-markers-in-the-liver-for-stereotactic-body-radiation-therapy
#1
So Hyun Park, Hyung Jin Won, So Yeon Kim, Yong Moon Shin, Pyo Nyun Kim, Sang Min Yoon, Jin-Hong Park, Jong Hoon Kim
OBJECTIVE: Stereotactic body radiation therapy (SBRT) for the treatment of a malignancy in the liver requires the perilesional implantation of fiducial markers for lesion detection. The purpose of this study is to evaluate the efficacy and safety of ultrasound (US) -guided marker implantation for SBRT. METHODS: We retrospectively reviewed 299, US-guided, intrahepatic fiducial markers implanted in 101 patients between November 2013 and September 2014. SBRT-planning CT images were analyzed to determine the technical success of the implantation, the mean distance between the tumor margin and the marker, with the ideal location of fiducials defined as the distance between a marker and a tumor less than 3 cm and the distance between markers greater than 2 cm according to the tumor conspicuity seen on gray-scale US and the artifact obscuring tumor margins...
2017: PloS One
https://www.readbyqxmd.com/read/28612018/treatment-options-in-oligometastatic-disease-stereotactic-body-radiation-therapy-focus-on-colorectal-cancer
#2
REVIEW
Aaron T Wild, Yoshiya Yamada
BACKGROUND: Improvements in systemic therapy for metastatic colorectal cancer (CRC) have markedly extended survival, rendering local control of metastases to critical organs of increasing importance, especially in the oligometastatic setting where the disease may not yet have acquired the ability to widely disseminate. While surgical resection remains the gold standard for oligometastases in many organs, stereotactic body radiation therapy (SBRT) presents a non-invasive alternative for achieving local control...
March 2017: Visceral Medicine
https://www.readbyqxmd.com/read/28605745/current-standard-and-future-perspectives-in-non-surgical-therapy-for-hepatocellular-carcinoma
#3
Tobias Eggert, Tim F Greten
BACKGROUND: Hepatocellular carcinoma (HCC) is an aggressive liver tumor with a poor 5-year survival rate. Many HCCs are not amenable to surgical resection, because of tumor size, location, or because of the patient's poor liver function, a common obstacle to HCC therapy, because HCCs almost always develop in chronically inflamed livers. SUMMARY: In recent years, many efforts have been made to improve patient survival by conducting clinical trials investigating local and systemic treatment options for patients with unresectable tumors...
June 13, 2017: Digestion
https://www.readbyqxmd.com/read/28588789/curative-effect-of-stereotactic-body-radiotherapy-for-unresectable-massive-primary-liver-cancer
#4
Ya-Zheng Dang, Xin Li, Shi-Gao Huang, Wan-Ling Lu, Guodong Wang, Dongxian Zhang, Qian-Yun Wang
The aim of this study was to evaluate the curative effect of gamma knife stereotactic body radiotherapy (SBRT) for unresectable massive primary liver cancer. A total of 69 patients with unresectable massive (>10 cm) primary liver cancer who were treated by SBRT at the Department of Radiation Oncology of the 323 Hospital of People's Liberation Army (Xi'an, China) between October, 2006 and October, 2010, were analyzed. According to the Union for International Cancer Control TNM staging guidelines, the patients were graded as stage T1 (n=8), T2 (n=12), T3 (n=21) and T4 (n=28)...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28588749/strategies-to-tackle-the-challenges-of-external-beam-radiotherapy-for-liver-tumors
#5
REVIEW
Michael I Lock, Jonathan Klein, Hans T Chung, Joseph M Herman, Edward Y Kim, William Small, Nina A Mayr, Simon S Lo
Primary and metastatic liver cancer is an increasingly common and difficult to control disease entity. Radiation offers a non-invasive treatment alternative for these patients who often have few options and a poor prognosis. However, the anatomy and aggressiveness of liver cancer poses significant challenges such as accurate localization at simulation and treatment, management of motion and appropriate selection of dose regimen. This article aims to review the options available and provide information for the practical implementation and/or improvement of liver cancer radiation programs within the context of stereotactic body radiotherapy and image-guided radiotherapy guidelines...
May 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28581406/long-term-survival-analysis-of-stereotactic-ablative-radiotherapy-versus-liver-resection-for-small-hepatocellular-carcinoma
#6
Ting-Shi Su, Ping Liang, Jian Liang, Huan-Zhen Lu, Hua-Yan Jiang, Tao Cheng, Yong Huang, Yang Tang, Xin Deng
PURPOSE: To compare the efficacy of stereotactic ablative radiation therapy (SABR) versus liver resection for small hepatocellular carcinoma (HCC) ≤5 cm with Child-Pugh A cirrhosis. METHODS AND MATERIALS: This retrospective study included 117 patients with small HCCs with 1 or 2 nodules. Eighty-two patients received SABR (SABR group), and 35 patients underwent liver resection (resection group). Overall survival (OS) and progression-free survival (PFS) were analyzed...
July 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28579341/percutaneous-ultrasound-guided-fiducial-marker-placement-for-liver-cancer-robotic-stereotactic-radio-surgery-treatment-a-comparative-analysis-of-three-types-of-markers-and-needles
#7
Maria Marsico, Tommaso Gabbani, Sarah Lunardi, Andrea Galli, Maria Rosa Biagini, Vito Annese
BACKGROUND AND STUDY AIMS: Percutaneous placement of fiducial markers is required to perform stereotactic body radiation therapy (SBRT) for liver neoplastic lesions. This prospective trial was designed to evaluate the feasibility and safety of percutaneous ultrasound-guided placement of three different types of markers in patients with liver cancer referred for SBRT. PATIENTS AND METHODS: Fifty patients underwent percutaneous ultrasound-guided implantation of a fiducial marker in the liver...
June 1, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/28577832/advances-in-stereotactic-body-radiation-therapy-for-hepatocellular-carcinoma
#8
REVIEW
Louise J Murray, Laura A Dawson
Stereotactic Body Radiation Therapy (SBRT) is an emerging effective treatment for hepatocellular carcinoma (HCC) associated with acceptable rates of toxicity in appropriately selected patients. Despite often being reserved for patients unsuitable for other local treatments, prospective and retrospective studies have demonstrated excellent long-term control. SBRT may be used as a stand-alone treatment, or as an adjunct to other HCC therapies. Based on available data, SBRT appears to complement existing local liver therapies...
July 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28577831/stereotactic-body-radiotherapy-for-liver-metastases
#9
REVIEW
Karyn A Goodman, Brian D Kavanagh
Many cancers can spread to the liver, often as the sole site of metastatic disease. For properly selected patients with limited hepatic disease and good performance status, an aggressive strategy involving radical local therapy to the site(s) of metastasis offers a chance for extended disease-free survivorship. The development of stereotactic body radiotherapy has inserted radiation therapy into the arsenal of valuable treatment options in this clinical setting. This article summarizes the latest advancements in the use of stereotactic body radiotherapy to treat liver metastases...
July 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28577827/normal-tissue-constraints-for-abdominal-and-thoracic-stereotactic-body-radiotherapy
#10
REVIEW
Erqi L Pollom, Alexander L Chin, Maximilian Diehn, Billy W Loo, Daniel T Chang
Although stereotactic body radiotherapy (SBRT) or stereotactic ablative radiotherapy has become an established standard of care for the treatment of a variety of malignancies, our understanding of normal tissue dose tolerance with extreme hypofractionation remains immature. Since Timmerman initially proposed normal tissue dose constraints for SBRT in the 2008 issue of Seminars of Radiation Oncology, experience with SBRT has grown, and more long-term clinical outcome data have been reported. This article reviews the modern toxicity literature and provides updated clinically practical and useful recommendations of SBRT dose constraints for extracranial sites...
July 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28574221/validation-of-a-method-for-in%C3%A2-vivo-3d-dose-reconstruction-in-sbrt-using-a-new-transmission-detector
#11
Yuji Nakaguchi, Takeshi Ono, Masato Maruyama, Yoshinobu Shimohigashi, Yudai Kai
Stereotactic body radiation therapy (SBRT) involves the delivery of substantially larger doses over fewer fractions than conventional therapy. Therefore, SBRT treatments will strongly benefit patients using vivo patient dose verification, because the impact of the fraction is large. For in vivo measurements, a commercially available quality assurance (QA) system is the COMPASS system (IBA Dosimetry, Germany). For measurements, the system uses a new transmission detector (Dolphin, IBA Dosimetry). In this study, we evaluated the method for in vivo 3D dose reconstruction for SBRT using this new transmission detector...
June 2, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28545098/survival-and-prognostic-factors-for-patients-with-advanced-hepatocellular-carcinoma-after-stereotactic-ablative-radiotherapy
#12
Cheng-Hsiang Lo, Jen-Fu Yang, Ming-Yueh Liu, Yee-Min Jen, Chun-Shu Lin, Hsing-Lung Chao, Wen-Yen Huang
OBJECTIVE: To evaluate the survival outcomes and prognostic factors of patients with advanced hepatocellular carcinoma (HCC) who underwent stereotactic ablative radiotherapy (SABR). METHODS: This retrospective study evaluated patients with advanced HCC who underwent SABR between December 2007 and July 2015. All patients had Barcelona Clinic Liver Cancer stage C disease and Child-Turcotte-Pugh (CTP) class A-B function. In-field control (IFC), overall survival (OS), prognostic factors, and toxicity were evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28507460/validation-of-the-liver-mean-dose-in-terms-of-the-biological-effective-dose-for-the-prevention-of-radiation-induced-liver-damage
#13
Hiroshi Doi, Norihisa Masai, Kenji Uemoto, Osamu Suzuki, Hiroya Shiomi, Daisaku Tatsumi, Ryoong-Jin Oh
AIM: The purpose of this study was to determine the optimal mean liver biologically effective dose (BED) to prevent radiation-induced liver disease (RILD) in stereotactic body radiation therapy (SBRT). BACKGROUND: The actual mean doses appropriate for liver irradiation in modern radiotherapy techniques have not been adequately investigated, although SBRT is sometimes alternatively performed using fractionated regimens. MATERIALS AND METHODS: SBRT treatment plans for liver tumors in 50 patients were analyzed...
July 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490990/management-of-liver-cancer-the-surgeon-s-point-of-view
#14
REVIEW
Pierre Rabinel, Damien Dousse, Fabrice Muscari, Bertrand Suc
During the last twenty years, a huge progress has been achieved in the treatment of liver cancer and recent strategies include interventional radiology, chemotherapy regimens and surgery. Meanwhile, Stereotactic Body Radiation Therapy (SRBT) has developed in the treatment of all organs with millimetre accuracy, very few side effects and a high control rate. So, SRBT has become a therapeutic weapon in his own right in liver tumour treatment. Many publications have reported encouraging results in colorectal liver metastasis, hepatocellular carcinoma on cirrhosis and peripheric cholangiocarcinoma...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490989/evaluation-of-response-after-sbrt-for-liver-tumors
#15
Raphael Tétreau, Carmen Llacer, Olivier Riou, Emmanuel Deshayes
Stereotactic body radiotherapy (SBRT) has developed over the last few years for the treatment of primary and metastatic hepatic tumors. The tumoral and adjacent peritumoral modifications caused by this radiosurgery limit the evaluation of response by anatomic imaging and dimensional criteria alone, such as with RECIST. This suggests that it is of interest to also take into account the residual enhancement and hyper metabolism of these hepatic targets. We have reviewed the English language literature regarding the response of hepatic lesions treated by SBRT, and found that only seven articles were specifically concerned with this problem...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490988/the-role-of-sbrt-in-oligometastatic-patients-with-liver-metastases-from-breast-cancer
#16
Marta Scorsetti, Davide Franceschini, Fiorenza De Rose, Tiziana Comito, Ciro Franzese, Giovanna Masci, Rosalba Torrisi, Luca Viganò, Guido Torzilli
Liver metastases from breast cancer are a common occurrence. Local ablative therapies are a promising therapeutic option for these patients, with the potential for a long term disease control in the setting of "oligometastatic patients". Identification of the perfect candidate for local approaches is still challenging and unclear. Stereotactic body radiation therapy (SBRT) is one of the most valuable local therapy, because of great efficiency, low morbidity and minimal invasiveness. In this paper, we reviewed the state of the art in the care of breast cancer patients with liver metastases, with a focus on SBRT...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490987/stereotactic-body-radiation-therapy-for-liver-metastasis-the-linac-based-greater-poland-cancer-centre-practice
#17
Magdalena Fundowicz, Marta Adamczyk, Anna Kołodziej-Dybaś
AIM: The main purpose of this work is to give a technical description and present the properties of the liver SBRT protocol implemented in the Greater Poland Cancer Centre (GPCC) in Poznan, Poland. BACKGROUND: Stereotactic body radiation therapy (SBRT) for liver metastasis is a non-invasive therapeutic option which enables irradiation of a small target in the body with a high dose. MATERIALS AND METHODS: This study presents details of our linac-based liver SBRT protocol...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490986/image-guided-sbrt-for-multiple-liver-metastases-with-exactrac-%C3%A2-adaptive-gating
#18
Carmen Rubio, Ovidio Hernando-Requejo, Daniel Zucca Aparicio, María ALlona Krauel, Mercedes López Gonzalez, Juan María Pérez, Emilio Sánchez Saugar, Pedro Fernández Letón
AIM: To report the outcome and toxicity of sequential stereotactic body radiotherapy (SBRT) for multiple liver metastases in patients treated with ExacTrac Adaptive Gating. BACKGROUND: In selected patients with a limited number of liver metastases, SBRT has been evaluated as a safe and effective treatment, with minimal toxicity and high rates of local control. MATERIALS AND METHODS: From April 2008 to October 2013, 21 patients with multiple (3-14) liver metastases (n = 101) were treated sequentially with SBRT at our institution...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490985/imaged-guided-liver-stereotactic-body-radiotherapy-using-vmat-and-real-time-adaptive-tumor-gating-concerns-about-technique-and-preliminary-clinical-results
#19
Carmen Llacer-Moscardo, Olivier Riou, David Azria, Ludovic Bedos, Norbert Ailleres, Francois Quenet, Philippe Rouanet, Marc Ychou, Pascal Fenoglietto
BACKGROUND: Motion management is a major challenge in abdominal SBRT. We present our study of SBRT for liver tumors using intrafraction motion review (IMR) allowing simultaneous KV information and MV delivery to synchronize the beam during gated RapidArc treatment. MATERIALS AND METHODS: Between May 2012 and March 2015, 41 patients were treated by liver SBRT using gated RapidArc technique in a Varian Novalis Truebeam STx linear accelerator. PTV was created by expanding 5 mm from the ITV...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490984/evaluation-of-reproducibility-of-tumor-repositioning-during-multiple-breathing-cycles-for-liver-stereotactic-body-radiotherapy-treatment
#20
Ludovic Bedos, Olivier Riou, Norbert Aillères, Antoine Braccini, Jessica Molinier, Carmen Llacer Moscardo, David Azria, Pascal Fenoglietto
AIM: To evaluate the tumor repositioning during gated volumetric modulated arc therapy (VMAT) for liver stereotactic body radiotherapy(SBRT) treatment using implanted fiducial markers and intrafraction kilovoltage (kV) images acquired during dose delivery. MATERIALS AND METHODS: Since 2012, 47 liver cancer patients with implanted fiducial markers were treated using the gated VMAT technique with a Varian Truebeam STx linear accelerator. The fiducial markers were implanted inside or close to the tumor target before treatment simulation...
March 2017: Reports of Practical Oncology and Radiotherapy
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