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https://www.readbyqxmd.com/read/28490981/robotic-radiosurgery-for-the-treatment-of-liver-metastases
#1
Rafael García, Iciar Santa-Olalla, Jose Luis Lopez Guerra, Silvia Sanchez, Ignacio Azinovic
AIM: This study evaluates the toxicity and outcome in patients treated with robotic radiosurgery for liver metastases. BACKGROUND: Modern technologies allow the delivery of high doses to the liver metastases while lowering the dose to the neighboring organs at risk. Whether this dosimetric advantage translates into clinical benefit is not well known yet. METHODS AND MATERIALS: A total of 9 patients with 17 liver metastases have been treated with robotic stereotactic body radiotherapy SBRT from March 2011 to December 2014...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28486299/reply-to-liver-malignancies-in-segment-vii-the-role-of-robot-assisted-surgery
#2
Takeaki Ishizawa, Chetana Lim, Norihiro Kokudo
No abstract text is available yet for this article.
June 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28486298/liver-malignancies-in-segment-vii-the-role-of-robot-assisted-surgery
#3
Francesco Guerra, Stefano Amore Bonapasta, Mario Annecchiarico, Andrea Coratti
No abstract text is available yet for this article.
June 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28462852/stereotactic-robotic-body-radiotherapy-for-patients-with-unresectable-hepatic-oligorecurrence
#4
Patrick Berkovic, Akos Gulyban, Paul Viet Nguyen, David Dechambre, Philippe Martinive, Nicolas Jansen, Ferenc Lakosi, Levente Janvary, Philippe A Coucke
BACKGROUND: The purpose of this study was to analyze local control (LC), liver progression-free survival (PFS), and distant PFS (DFS), overall survival (OS), and toxicity in a cohort of patients treated with stereotactic body radiotherapy (SBRT) with fiducial tracking for oligorecurrent liver lesions; and to evaluate the potential influence of lesion size, systemic treatment, physical and biologically effective dose (BED), treatment calculation algorithms and other parameters on the obtained results...
March 21, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28405715/-robot-assisted-liver-resection
#5
H Aselmann, T Möller, J-N Kersebaum, J H Egberts, R Croner, M Brunner, R Grützmann, T Becker
Robotic liver resection can overcome some of the limitations of laparoscopic liver surgery; therefore, it is a promising tool to increase the proportion of minimally invasive liver resections. The present article gives an overview of the current literature. Furthermore, the results of a nationwide survey on robotic liver surgery among hospitals in Germany with a DaVinci system used in general visceral surgery and the perioperative results of two German robotic centers are presented.
April 12, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28364151/evolution-of-a-laparoscopic-liver-resection-program-an-analysis-of-203-cases
#6
Mohammed Elshamy, Hideo Takahashi, Muhammet Akyuz, Pinar Yazici, Hakan Yigitbas, Abdulrahman Y Hammad, Federico N Aucejo, Cristiano Quintini, John Fung, Eren Berber
BACKGROUND: Techniques for laparoscopic liver resection (LLR) have been developed over the past two decades. The aim of this study is to analyze the outcomes and trends of LLR. METHODS: 203 patients underwent LLR between 2006 and 2015. Trends in techniques and outcomes were assessed dividing the experience into 2 periods (before and after 2011). RESULTS: Tumor type was malignant in 62%, and R0 resection was achieved in 87.7%. Procedures included segmentectomy/wedge resection in 64...
March 31, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28345375/the-chemo-prophylactic-efficacy-of-an-ethanol-moringa-oleifera-leaf-extract-against-hepatocellular-carcinoma-in-rats
#7
Kadry M Sadek, Tarek K Abouzed, Reham Abouelkhair, Sherif Nasr
CONTEXT: Hepatocellular carcinoma (HCC) is among the most well-known threatening tumours around the world, and the outlook remains bleak. Moringa oleifera Lam. (Moringaceae) exhibits antitumor, antioxidant and hepatoprotective properties. OBJECTIVES: To assess the chemo-prophylactic proficiency and other likely activities of Moringa oleifera leaf ethanol extract (MOLEE) against diethyl nitrosamine (DEN)-induced HCC. MATERIALS AND METHODS: Wistar rats were gastrogavaged with MOLEE (500 mg/kg) for one week and then gastrogavaged with MOLEE and DEN (10 mg/kg) for the following 16 weeks...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28338152/-development-and-future-of-minimally-invasive-surgery-in-western-china
#8
Peiwu Yu, Yingxue Hao
There are vast land and lots of people in western China, but the economy developing is relatively slow. However, the minimally invasive surgery was carried out firstly in China. Moreover, the type, number and difficulty of the minimally invasive surgery increased year by year. Especially, in the western area of China, Dr Zhou Zongguang, Yu Peiwu and Zheng Shuguo et al. have performed much pioneering work in laparoscopic surgery for rectal cancer, gastric cancer and laparoscopic liver resection. They led the standard development of minimally invasive in China...
March 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28297792/-advances-in-basic-and-clinical-research-on-hepatocellular-carcinoma-in-2016
#9
Z Z Dong, X D Zhu, Z Li, Y G Mao, Y L Chai, D F Yao, H C Sun, J Y Zhu, K S Ma
Hepatocellular carcinoma (HCC) is still one of common malignant cancers worldwide, with increasing incidence and mortality rates. Early diagnosis and effective treatment for HCC remain to be explored. This article introduces the research advances in the early specific diagnosis and effective therapies for HCC in 2016, such as molecular markers in the specific diagnosis and targeted therapy for HCC, main therapeutic regimens, robot-assisted liver resection, and no-touch radiofrequency ablation.
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28292628/the-role-of-minimally-invasive-surgery-in-the-treatment-of-cholangiocarcinoma
#10
REVIEW
G B Levi Sandri, G Spoletini, G Mascianà, M Colasanti, P Lepiane, G Vennarecci, V D'Andrea, G M Ettorre
Cholangiocarcinoma (CC) is the second most common type of primary liver cancer after hepatocellular carcinoma. Surgical resection is considered the only curative treatment for CC. In general, laparoscopic liver surgery (LLS) is associated with improved short-term outcomes without compromising the long-term oncological outcome. However, the role of LLS in the treatment of CC is not yet well established. In addition, CC may arise in any tract of the biliary tree, thus requiring different types of treatment, including pancreatectomies and extrahepatic bile duct resections...
March 3, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28287073/validation-of-a-ct-guided-intervention-robot-for-biopsy-and-radiofrequency-ablation-experimental-study-with-an-abdominal-phantom
#11
Hyung Jin Won, Namkug Kim, Guk Bae Kim, Joon Beom Seo, Hongho Kim
PURPOSE: We aimed to evaluate the accuracy of a needle-placement robot for biopsy and radiofrequency ablation on an abdominal phantom. METHODS: A master-slave robotic system has been developed that includes a needle-path planning system and a needle-inserting robot arm with computed tomography (CT) and CT fluoroscopy guidance. For evaluation of its accuracy in needle placement, a commercially available abdominal phantom (Model 057A; CIRS Inc.) was used. The liver part of the phantom contains multiple spherical simulated tumors of three different size spheres...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28285339/acoustic-window-planning-for-ultrasound-acquisition
#12
Rüdiger Göbl, Salvatore Virga, Julia Rackerseder, Benjamin Frisch, Nassir Navab, Christoph Hennersperger
Autonomous robotic ultrasound has recently gained considerable interest, especially for collaborative applications. Existing methods for acquisition trajectory planning are solely based on geometrical considerations, such as the pose of the transducer with respect to the patient surface. PURPOSE: This work aims at establishing acoustic window planning to enable autonomous ultrasound acquisitions of anatomies with restricted acoustic windows, such as the liver or the heart. METHODS: We propose a fully automatic approach for the planning of acquisition trajectories, which only requires information about the target region as well as existing tomographic imaging data, such as X-ray computed tomography...
March 11, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28266973/is-multimodality-the-third-way-in-the-challenge-robot-versus-laparoscopy-for-liver-resections
#13
Roberto Valente, Daniel Azoulay
No abstract text is available yet for this article.
April 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28262591/robotics-in-hepatobiliary-surgery-initial-experience-first-reported-case-series-from-india
#14
S Goja, M K Singh, A S Soin
INTRODUCTION: Robotic surgical system's ability to perform complex hepatobiliary surgeries is gaining momentum with outcomes similar to open surgery and advantages of minimal access surgery. The authors present their initial experience of a heterogenous spectrum of robotic hepatobiliary cases and the first reported case series from India. METHODS: Retrospective review of hepatobiliary cases done robotically from February 2015 to January 2016 was done. RESULTS: The series has ten patients; with median age of 45 years (range 15-72)...
February 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28251793/preservation-of-replaced-left-hepatic-artery-during-robotic-assisted-minimally-invasive-esophagectomy-a-case-series
#15
Nicholas R Hess, Nabil P Rizk, James D Luketich, Inderpal S Sarkaria
OBJECTIVE: Finding of a significant replaced left hepatic artery (RLHA) during esophagectomy is relatively rare, with an incidence of approximately 5%. Sparing of the artery may be required to avoid complications of liver ischemia. Robotic assistance during esophagectomy may provide a technically superior method of artery preservation with minimally invasive approaches. METHODS: This is a retrospective case series of patients undergoing robotic-assisted minimally invasive esophagectomy (RAMIE) identified to have a significant RLHA at time of surgery...
March 2, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28244421/dosimetric-implications-of-residual-tracking-errors-during-robotic-sbrt-of-liver-metastases
#16
Mark Chan, Melanie Grehn, Florian Cremers, Frank-Andre Siebert, Stefan Wurster, Stefan Huttenlocher, Jürgen Dunst, Guido Hildebrandt, Achim Schweikard, Dirk Rades, Floris Ernst, Oliver Blanck
PURPOSE: Although the metric precision of robotic stereotactic body radiation therapy in the presence of breathing motion is widely known, we investigated the dosimetric implications of breathing phase-related residual tracking errors. METHODS AND MATERIALS: In 24 patients (28 liver metastases) treated with the CyberKnife, we recorded the residual correlation, prediction, and rotational tracking errors from 90 fractions and binned them into 10 breathing phases. The average breathing phase errors were used to shift and rotate the clinical tumor volume (CTV) and planning target volume (PTV) for each phase to calculate a pseudo 4-dimensional error dose distribution for comparison with the original planned dose distribution...
March 15, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28217260/robotic-liver-surgery-is-the-optimal-approach-as-bridge-to-transplantation
#17
Paolo Magistri, Giuseppe Tarantino, Roberto Ballarin, Andrea Coratti, Fabrizio Di Benedetto
The role of minimally invasive liver surgery as a bridge to transplantation is very promising but still underestimated. However, it should be noted that surgical approach for hepatocellular carcinomas (HCC) is not merely a technical or technological issue. Nowadays, the epidemiology of HCC is evolving due to the increasing role of non-alcoholic fatty-liver-disease, and the emerging concerns on direct-acting antivirals against hepatitis C virus in terms of HCC incidence. Therefore, a fully multidisciplinary study of the cirrhotic patient is currently more important than ever before, and the management of those patients should be reserved to tertiary referral hepatobiliary centers...
February 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28191866/laparoscopic-liver-resection-a-review-of-current-status
#18
Yihe Yan, Xiaoyong Cai, David A Geller
BACKGROUND: Laparoscopic liver resection (LLR) has been increasing since it was first reported in 1991. Two international expert consensus conferences on LLR surgery were held in Louisville, KY, USA, in 2008 and in Morioka, Japan, in 2014, respectively. While most initial minimally invasive liver resections were typically done for benign lesions in anterior or left lateral segments, LLR is currently being applied for major anatomic resections, malignancy, cirrhosis, and live donor hepatectomy...
May 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28186429/financial-impact-of-the-robotic-approach-in-liver-surgery-a-comparative-study-of-clinical-outcomes-and-costs-between-the-robotic-and-open-technique-in-a-single-institution
#19
Despoina Daskalaki, Raquel Gonzalez-Heredia, Marc Brown, Francesco M Bianco, Ivo Tzvetanov, Myriam Davis, Jihun Kim, Enrico Benedetti, Pier C Giulianotti
BACKGROUND: One of the perceived major drawbacks of minimally invasive techniques has always been its cost. This is especially true for the robotic approach and is one of the main reasons that has prevented its wider acceptance among hospitals and surgeons. The aim of our study was to evaluate the clinical outcomes and economic impact of robotic and open liver surgery in a single institution. METHODS: Sixty-eight robotic and 55 open hepatectomies were performed at our institution between January 1, 2009 and December 31, 2013...
April 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28163662/stochastic-extended-lqr-for-optimization-based-motion-planning-under-uncertainty
#20
Wen Sun, Jur van den Berg, Ron Alterovitz
We introduce a novel optimization-based motion planner, Stochastic Extended LQR (SELQR), which computes a trajectory and associated linear control policy with the objective of minimizing the expected value of a user-defined cost function. SELQR applies to robotic systems that have stochastic non-linear dynamics with motion uncertainty modeled by Gaussian distributions that can be state- and control-dependent. In each iteration, SELQR uses a combination of forward and backward value iteration to estimate the cost-to-come and the cost-to-go for each state along a trajectory...
April 2016: IEEE Transactions on Automation Science and Engineering: a Publication of the IEEE Robotics and Automation Society
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