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Canan Koksal, Ugur Akbas, Nazmiye Donmez Kesen, Murat Okutan, Hatice Bilge, Gonul Kemikler
PURPOSE: The purpose of this study was to perform pretreatment patient-specific quality assurance (QA) for intracranial irradiation using CyberKnife with an ion chamber. METHODS: Twenty-five intracranial plans created using the ray-tracing algorithm were used for this study. Computed tomography (CT) images of the water-equivalent RW3 slab phantom with PinPoint ionization chamber were acquired with 1-mm slice thickness and transferred to the MultiPlan treatment planning system (TPS)...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Dario Amore, Roberto Scaramuzzi, Davide Di Natale, Carlo Curcio
The advantages of thymectomy as part of the treatment of myasthenia gravis has been demonstrated repeatedly in the literature. Both single-institution and multi-institution trials have shown robotic thymectomy to be safe, feasible and associated with better early clinical outcomes than the trans-sternal approach. Most reports have also documented the superiority of robotic technology in the dissection of the superior mediastinum over conventional thoracoscopy, thanks to instruments with more degrees of movement and freedom...
2018: Journal of Visualized Surgery
Federico Davini, Sara Ricciardi, Carmelina Cristina Zirafa, Ilenia Cavaliere, Gaetano Romano, Franca Melfi
Background: The incidental detection of solitary pulmonary nodule (SPN) is currently increasing due to the widespread use of computed tomography (CT) during the follow up in oncological patients or in screening trials. A quick and definitive histological diagnosis of these nodes is mandatory as, in case of primitive lung cancer, an early detection could improve both surgical results and prognosis. The minimally invasive pulmonary resection (MIPR) is the gold standard procedure for diagnosis and treatment of small lung nodules, but it can be difficult to localize deep nonpalpable nodes that lie in the lung parenchyma...
2018: Journal of Visualized Surgery
Matthew J Weiss, Melissa E Hogg
No abstract text is available yet for this article.
2018: Journal of visualized surgery
K Hirose, T Aoki, T Furukawa, S Fukushima, H Niioka, S Deguchi, M Hashimoto
Label-free visualization of nerves and nervous plexuses will improve the preservation of neurological functions in nerve-sparing robot-assisted surgery. We have developed a coherent anti-Stokes Raman scattering (CARS) rigid endoscope to distinguish nerves from other tissues during surgery. The developed endoscope, which has a tube with a diameter of 12 mm and a length of 270 mm, achieved 0.91% image distortion and 8.6% non-uniformity of CARS intensity in the whole field of view (650 μm diameter). We demonstrated CARS imaging of a rat sciatic nerve and visualization of the fine structure of nerve fibers...
February 1, 2018: Biomedical Optics Express
Sriram Garudeswaran, Sohyung Cho, Ikechukwu Ohu, Ali K Panahi
Recent technological progress offers the opportunity to significantly transform conventional open surgical procedures in ways that allow minimally invasive surgery (MIS) to be accomplished by specific operative instruments' entry into the body through key-sized holes rather than large incisions. Although MIS offers an opportunity for less trauma and quicker recovery, thereby reducing length of hospital stay and attendant costs, the complex nature of this procedure makes it difficult to master, not least because of the limited work area and constricted degree of freedom...
2018: Minimally Invasive Surgery
Roberto Colombo, Alessandra Mazzone, Carmen Delconte, Fabrizio Pisano
Proprioception plays a fundamental role in maintaining posture and executing movement, and the quantitative evaluation of proprioceptive deficits in poststroke patients is important. But currently it is not widely performed due to the complexity of the evaluation tools required for a reliable assessment. The aims of this pilot study were to (a) develop a system architecture for upper limb evaluation and training of proximal and distal sense of position in the horizontal plane and (b) test the system in healthy and pathological subjects...
2018: Computational Intelligence and Neuroscience
Sandra Puentes, Hideki Kadone, Shigeki Kubota, Tetsuya Abe, Yukiyo Shimizu, Aiki Marushima, Yoshiyuki Sankai, Masashi Yamazaki, Kenji Suzuki
The Ossification of the Posterior Longitudinal Ligament (OPLL) is an idiopathic degenerative spinal disease which may cause motor deficit. For patients presenting myelopathy or severe stenosis, surgical decompression is the treatment of choice; however, despite adequate decompression residual motor impairment is found in some cases. After surgery, there is no therapeutic approach available for this population. The Hybrid Assistive Limb® (HAL) robot suit is a unique powered exoskeleton designed to predict, support, and enhance the lower extremities performance of patients using their own bioelectric signals...
2018: Frontiers in Neuroscience
Stefanie von Mechow, Markus Graefen, Alexander Haese, Pierre Tennstedt, Dirk Pehrke, Frank Friedersdorff, Burkhard Beyer
PURPOSE: To compare the duration of sick leave in patients with localized prostate cancer after robot-assisted radical prostatectomy (RARP) and open retropubic RP (ORP) at a German high-volume prostate cancer center. METHODS: The data of 1,415 patients treated with RP at Martini Klinik, Prostate Cancer Center between 2012 and 2016 were, retrospectively, analyzed. Information on employment status, monthly revenues and days of work missed due to sickness were assessed via online questionnaire...
March 15, 2018: Urologic Oncology
Shih-Yen Lu, Hsiao-Jen Chung, Eric Yi-Hsiu Huang, Tzu-Pin Lin, Alex T L Lin
BACKGROUND: The aim of this study was to compare the perioperative outcomes between renal hilar tumors and non-hilar tumors after robotic-assisted partial nephrectomy (RAPN). METHODS: A retrospective review of consecutive patients who underwent RAPN from December 2009 to September 2015 at our institution was recruited. Perioperative outcomes including demographic characteristics, perioperative, pathological and renal function outcomes were compared between the hilar group (n = 30) and non-hilar group (n = 170)...
March 15, 2018: Journal of the Chinese Medical Association: JCMA
Andreas Martinschek, G Welzel, M Ritter, E Heinrich, C Bolenz, L Trojan
To prospectively evaluate the possible loss of attention among console surgeons performing robotic-assisted procedures using a validated psychological test. The concentration of one console surgeon was assessed before and after 25 robotic-assisted procedures (radical prostatectomies) using the validated d2 attention test (computer-assisted, Hogrefe test systems, Germany). Error frequency, work rate, and accuracy of task performance were evaluated as parameters of the fluctuation in concentration. Data were correlated with clinical parameters, including console times, positive surgical margin rates and the use of a nerve-sparing procedure...
March 17, 2018: Journal of Robotic Surgery
Nils Gessert, Matthias Schlüter, Alexander Schlaefer
Tracking the pose of instruments is a central problem in image-guided surgery. For microscopic scenarios, optical coherence tomography (OCT) is increasingly used as an imaging modality. OCT is suitable for accurate pose estimation due to its micrometer range resolution and volumetric field of view. However, OCT image processing is challenging due to speckle noise and reflection artifacts in addition to the images' 3D nature. We address pose estimation from OCT volume data with a new deep learning-based tracking framework...
March 10, 2018: Medical Image Analysis
Aneeq Zia, Irfan Essa
PURPOSE: Manual feedback in basic robot-assisted minimally invasive surgery (RMIS) training can consume a significant amount of time from expert surgeons' schedule and is prone to subjectivity. In this paper, we explore the usage of different holistic features for automated skill assessment using only robot kinematic data and propose a weighted feature fusion technique for improving score prediction performance. Moreover, we also propose a method for generating 'task highlights' which can give surgeons a more directed feedback regarding which segments had the most effect on the final skill score...
March 16, 2018: International Journal of Computer Assisted Radiology and Surgery
Amine Harichane, Dorian Chauvet, Stéphane Hans
This study was made to assess the possibilities and limits of minimally invasive transoral approach to the nasopharynx using the Da Vinci surgical robot. It was conducted on eleven corpses, without need for palatine split; using surgical robots Da Vinci models S HD and Si HD. We have defined "anatomical key landmarks" on all sides of the nasopharynx, to confirm our hypothesis. All of the nasopharynx could be visualized and transorally reached by the robot with a validation of all the key landmarks...
March 16, 2018: Journal of Robotic Surgery
Wenjie Zhong, Kayvan Haghighi, Prem Rathore, Eddy Wong, Pascal Mancuso
Robot-assisted radical prostatectomy to treat localized prostate cancer has increased in popularity, although other options exist, including radiotherapy and active surveillance. The decision about choosing the right treatment has become pertinent for many patients. This literature review aimed to assess the current state-of-the-art regarding decisional aids and the associated decisional outcomes for the purpose of designing a method for both patients and doctors to use to make the best treatment decision for the patient...
March 16, 2018: Journal of Robotic Surgery
Anna Vera Cuppone, Marianna Semprini, Jürgen Konczak
Sensorimotor learning is a bidirectional process associated with concurrent neuroplastic changes in the motor and somatosensory system. While motor memory consolidation and retention have been extensively studied during skill acquisition, little is known about the formation and consolidation of somatosensory memory associated with motor learning. Using a robotic exoskeleton, we tracked markers of somatosensory and motor learning while healthy participants trained to make goal-directed wrist reaching movements over five days and evaluated retention for up to 10 days after practice...
March 13, 2018: Behavioural Brain Research
Bernardino De Concilio, Tommaso Silvestri, Matteo Justich, Francesca Vedovo, Guglielmo Zeccolini, Antonio Celia
No abstract text is available yet for this article.
March 13, 2018: Urology
Francesco Porpiglia, Cristian Fiori, Enrico Checcucci, Daniele Amparore, Riccardo Bertolo
No abstract text is available yet for this article.
March 13, 2018: Urology
Claudia Sinoo, Sylvia van der Pal, Olivier A Blanson Henkemans, Anouk Keizer, Bert P B Bierman, Rosemarijn Looije, Mark A Neerincx
OBJECTIVE: The PAL project develops a conversational agent with a physical (robot) and virtual (avatar) embodiment to support diabetes self-management of children ubiquitously. This paper assesses 1) the effect of perceived similarity between robot and avatar on children's' friendship towards the avatar, and 2) the effect of this friendship on usability of a self-management application containing the avatar (a) and children's motivation to play with it (b). METHODS: During a four-day diabetes camp in the Netherlands, 21 children participated in interactions with both agent embodiments...
February 21, 2018: Patient Education and Counseling
Anne Deblock-Bellamy, Charles Sebiyo Batcho, Catherine Mercier, Andreanne K Blanchette
BACKGROUND: Proprioceptive sense plays a significant role in the generation and correction of skilled movements and, consequently, in most activities of daily living. We developed a new proprioception assessment protocol that enables the quantification of elbow position sense without using the opposite arm, involving active movement of the evaluated limb or relying on working memory. The aims of this descriptive study were to validate this assessment protocol by quantifying the elbow position sense of healthy adults, before using it in individuals who sustained a stroke, and to investigate its test-retest reliability...
March 16, 2018: Journal of Neuroengineering and Rehabilitation
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