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Robotic stereotactic

Giuseppe Minniti, Mattia Falchetto Osti, Maximillian Niyazi
Stereotactic radiosurgery (SRS) delivered as either single-fraction or multi-fraction SRS (2-5 fractions) is frequently employed in patients with residual or recurrent pituitary adenoma. The most common delivery systems used for SRS include the cobalt-60 system Gamma Knife, the CyberKnife (CK) robotic radiosurgery system, or a modified conventional radiotherapy machine (linear accelerator, LINAC). Tumor control and normalization of hormone hypersecretion have been reported in 75-100 % and 25-80 % of patients, respectively...
October 11, 2016: Radiation Oncology
Marta Penna, Nicolas C Buchs, Alexander L Bloemendaal, Roel Hompes
The surgical approach to total mesorectal excision (TME) for rectal cancer has undergone a substantial evolution with the adoption of more minimally invasive procedures. Transanal TME (taTME) is the latest advanced technique pioneered to tackle difficult pelvic dissections. Areas covered: The evolution of TME surgery from open to laparoscopic, robotic and transanal techniques was explored in this review. The outcomes to date on the latest approach, taTME, are reviewed and the future direction of rectal cancer surgery proposed...
October 3, 2016: Expert Review of Anticancer Therapy
Alvin Y Chan, Diem Kieu T Tran, Amandip S Gill, Frank P K Hsu, Sumeet Vadera
Laser interstitial thermal therapy (LITT) is a minimally invasive procedure used to treat a variety of intracranial lesions. Utilization of robotic assistance with stereotactic procedures has gained attention due to potential for advantages over conventional techniques. The authors report the first case in which robot-assisted MRI-guided LITT was used to treat radiation necrosis in the posterior fossa, specifically within the cerebellar peduncle. The use of a stereotactic robot allowed the surgeon to perform LITT using a trajectory that would be extremely difficult with conventional arc-based techniques...
October 2016: Neurosurgical Focus
P Wang, Y Song, H Zhang, P Liang, X Liu, Z Yuan
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
L Sang Kyu, J H Kim, M J Kim, J Y Woo, J G Baek, S Y Kim, J H Cho, J S Chang, W S Koom
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
A Belcher, X Liu, R D Wiersma
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
J E Palmgren, E Kallioniemi, P Julkunen
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
O F Iskanderani, B N Dominic, R Doucet, G Coulombe, D Pascale, D Roberge
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
H Iwata, S Ishikura, T Murai, M Iwabuchi, M Inoue, K Tatewaki, S Ohta, N Yokota, Y Shibamoto
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
S R Blacksburg, M R Witten, A E Katz, C Mendez, A Sanchez, V J Martello, N Russo, J A Haas
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
I Zhang, J Antone, L Vijeh, J Li, J Lauritano, M Marrero, S Saha, A Goenka, H D Zinkin, J P S Knisely
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Edgar Monroy, Jose Azpiri, Cuauhtémoc De La Peña, Carlos Cardona, Miguel Hinojosa, Rafael Zamarripa, Jose Assad
Pulmonary vein isolation using robotic radiosurgery system CyberKnife is a new non-invasive treatment of atrial fibrillation, currently in clinical phase. Robotic radiosurgical pulmonary vein isolation (RRPVI) uses stereotactic, non-invasive (painless) pinpoint radiation energy delivery to a small, precise area to accomplish ablation. The purpose of this report is to describe the finding of an increase in the enhancement of the left atrium demonstrated with the use of cardiac magnetic resonance imaging using late gadolinium enhancement (LGE-CMR) as a result of RRPVI in the first case in the world in humans using CyberKnife as a treatment for paroxysmal atrial fibrillation (PAF)...
2016: Curēus
Oliver Blanck, Svenja Ipsen, Mark K Chan, Ralf Bauer, Matthias Kerl, Peter Hunold, Volkmar Jacobi, Ralf Bruder, Achim Schweikard, Dirk Rades, Thomas J Vogl, Peter Kleine, Frank Bode, Jürgen Dunst
PURPOSE: Robotic guided stereotactic radiosurgery has recently been investigated for the treatment of atrial fibrillation (AF). Before moving into human treatments, multiple implications for treatment planning given a potential target tracking approach have to be considered. MATERIALS & METHODS: Theoretical AF radiosurgery treatment plans for twenty-four patients were generated for baseline comparison. Eighteen patients were investigated under ideal tracking conditions, twelve patients under regional dose rate (RDR = applied dose over a certain time window) optimized conditions (beam delivery sequence sorting according to regional beam targeting), four patients under ultrasound tracking conditions (beam block of the ultrasound probe) and four patients with temporary single fiducial tracking conditions (differential surrogate-to-target respiratory and cardiac motion)...
2016: Curēus
Vladimir Avkshtol, Yanqun Dong, Shelly B Hayes, Mark A Hallman, Robert A Price, Mark L Sobczak, Eric M Horwitz, Nicholas G Zaorsky
Prostate cancer is the most prevalent cancer diagnosed in men in the United States besides skin cancer. Stereotactic body radiation therapy (SBRT; 6-15 Gy per fraction, up to 45 minutes per fraction, delivered in five fractions or less, over the course of approximately 2 weeks) is emerging as a popular treatment option for prostate cancer. The American Society for Radiation Oncology now recognizes SBRT for select low- and intermediate-risk prostate cancer patients. SBRT grew from the notion that high doses of radiation typical of brachytherapy could be delivered noninvasively using modern external-beam radiation therapy planning and delivery methods...
2016: Research and Reports in Urology
Lei Wang, Benjamin Fahimian, Scott G Soltys, Paul Zei, Anthony Lo, Edward A Gardner, Patrick J Maguire, Billy W Loo
PURPOSE: The first stereotactic arrhythmia radioablation (STAR) of ventricular tachycardia (VT) was delivered at Stanford on a robotic radiosurgery system (CyberKnife® G4) in 2012. The results warranted further investigation of this treatment. Here we compare dosimetrically three possible treatment delivery platforms for STAR. METHODS: The anatomy and target volume of the first treated patient were used for this study. A dose of 25 Gy in one fraction was prescribed to the planning target volume (PTV)...
2016: Curēus
Stephen Seiler, Asal Rahimi, Sadia Choudhery, Dan Garwood, Ann Spangler, Solomon Cherian, Sally Goudreau
OBJECTIVE: A novel technique of placing gold fiducial markers in the breast using ultrasound guidance was developed and performed in 51 of 55 consecutive postlumpectomy patients enrolled in a phase I dose escalation trial of accelerated partial-breast irradiation (APBI) using robotic-based stereotactic body radiation therapy (SBRT). CONCLUSION: All 51 postoperative patients underwent successful fiducial placement without complications. Our technique of placing gold fiducial markers in proximity to the seroma cavity is considered safe and effective for breast cancer patients being treated with APBI using robotic-based SBRT...
September 2016: AJR. American Journal of Roentgenology
Christian Dorfer, Georgi Minchev, Thomas Czech, Harald Stefanits, Martha Feucht, Ekaterina Pataraia, Christoph Baumgartner, Gernot Kronreif, Stefan Wolfsberger
OBJECTIVE The authors' group recently published a novel technique for a navigation-guided frameless stereotactic approach for the placement of depth electrodes in epilepsy patients. To improve the accuracy of the trajectory and enhance the procedural workflow, the authors implemented the iSys1 miniature robotic device in the present study into this routine. METHODS As a first step, a preclinical phantom study was performed using a human skull model, and the accuracy and timing between 5 electrodes implanted with the manual technique and 5 with the aid of the robot were compared...
August 5, 2016: Journal of Neurosurgery
Bruce L Jacobs, Robert Sunderland, Jonathan Yabes, Joel B Nelson, Amber E Barnato, Justin E Bekelman
INTRODUCTION: Local coverage determinations (LCDs) are local decisions that regulate healthcare coverage. We evaluated the impact of LCDs as well as patient, tumor, and market characteristics on the adoption of stereotactic body radiation therapy (SBRT) for prostate cancer. METHODS: Using Surveillance, Epidemiology, and End Results (SEER)-Medicare, we identified men treated with SBRT, intensity-modulated radiotherapy (IMRT), and robotic prostatectomy. We compared demographics, clinical characteristics, and market factors among these three treatments...
November 2015: Urology Practice
Ima Paydar, Robyn A Cyr, Thomas M Yung, Siyuan Lei, Brian Timothy Collins, Leonard N Chen, Simeng Suy, Anatoly Dritschilo, John H Lynch, Sean P Collins
BACKGROUND: Proctitis following prostate cancer radiation therapy is a primary determinant of quality of life (QOL). While previous studies have assessed acute rectal morbidity at 1 month after stereotactic body radiotherapy (SBRT), little data exist on the prevalence and severity of rectal morbidity within the first week following treatment. This study reports the acute bowel morbidity 1 week following prostate SBRT. MATERIALS AND METHODS: Between May 2013 and August 2014, 103 patients with clinically localized prostate cancer were treated with 35-36...
2016: Frontiers in Oncology
Marlee M Vandewouw, Dionne M Aleman, David A Jaffray
PURPOSE: Continuous dose delivery in radiation therapy treatments has been shown to decrease total treatment time while improving the dose conformity and distribution homogeneity over the conventional step-and-shoot approach. The authors develop an inverse treatment planning method for Gamma Knife® Perfexion™ that continuously delivers dose along a path in the target. METHODS: The authors' method is comprised of two steps: find a path within the target, then solve a mixed integer optimization model to find the optimal collimator configurations and durations along the selected path...
August 2016: Medical Physics
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