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https://www.readbyqxmd.com/read/27936015/towards-assessing-the-human-trajectory-planning-horizon
#1
Daniel Carton, Verena Nitsch, Dominik Meinzer, Dirk Wollherr
Mobile robots are envisioned to cooperate closely with humans and to integrate seamlessly into a shared environment. For locomotion, these environments resemble traversable areas which are shared between multiple agents like humans and robots. The seamless integration of mobile robots into these environments requires accurate predictions of human locomotion. This work considers optimal control and model predictive control approaches for accurate trajectory prediction and proposes to integrate aspects of human behavior to improve their performance...
2016: PloS One
https://www.readbyqxmd.com/read/27935557/wearable-tubing-assistive-walking-device-immediately-enhances-gait-parameters-in-subjects-with-stroke-a-randomized-controlled-study
#2
Seung-Mi Lee, Heon-Seock Cynn, Chung-Hwi Yi, Tae-Lim Yoon, Ji-Hyun Lee
BACKGROUND: Stroke patients develop compensatory movements due to limitations of ankle dorsiflexion and knee flexion. To solve the limitations, there are many adjustable walking assistive devices such as robotic devices, ankle-foot orthoses, and functional electric stimulation in rehabilitation session. However, these assistive devices have some disadvantages, including expense and discomforts. Therefore, the development of a new assistive device for stroke patients is needed to assist ankle dorsiflexion and knee flexion...
December 8, 2016: NeuroRehabilitation
https://www.readbyqxmd.com/read/27935289/piezopotential-programmed-multilevel-nonvolatile-memory-as-triggered-by-mechanical-stimuli
#3
Qijun Sun, Dong Hae Ho, Yongsuk Choi, Caofeng Pan, Do Hwan Kim, Zhong Lin Wang, Jeong Ho Cho
We report the development of a piezopotential-programmed nonvolatile memory array using a combination of ion gel-gated field-effect transistors (FETs) and piezoelectric nanogenerators (NGs). Piezopotentials produced from the NGs under external strains were able to replace the gate voltage inputs associated with the programming/erasing operation of the memory, which reduced the power consumption compared with conventional memory devices. Multilevel data storage in the memory device could be achieved by varying the external bending strain applied to the piezoelectric NGs...
December 9, 2016: ACS Nano
https://www.readbyqxmd.com/read/27933389/high-volume-is-the-key-for-improving-in-hospital-outcomes-after-radical-prostatectomy-a-total-population-analysis-in-germany-from-2006-to-2013
#4
Christer Groeben, Rainer Koch, Martin Baunacke, Manfred P Wirth, Johannes Huber
PURPOSE: Outcomes of radical prostatectomy are prone to publication bias, because most of the data originated from highly specialized centers. We assessed in-hospital outcomes of all radical prostatectomies in Germany from 2006 to 2013 focusing on caseload volume, surgical approach, and certification status. METHODS: We analyzed the nationwide German hospital billing data covering 221,331 radical prostatectomies from 2006 to 2013. Outcomes were in-hospital mortality, surgical revision, and transfusion rates and the length of stay...
December 8, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27933270/compliance-control-based-on-pso-algorithm-to-improve-the-feeling-during-physical-human-robot-interaction
#5
Zhongliang Jiang, Yu Sun, Peng Gao, Ying Hu, Jianwei Zhang
Robots play more important roles in daily life and bring us a lot of convenience. But when people work with robots, there remain some significant differences in human-human interactions and human-robot interaction. It is our goal to make robots look even more human-like. We design a controller which can sense the force acting on any point of a robot and ensure the robot can move according to the force. First, a spring-mass-dashpot system was used to describe the physical model, and the second-order system is the kernel of the controller...
2016: Robotics and Biomimetics
https://www.readbyqxmd.com/read/27933136/critical-analysis-of-the-literature-investigating-urogenital-function-preservation-following-robotic-rectal-cancer-surgery
#6
Sofoklis Panteleimonitis, Jamil Ahmed, Mick Harper, Amjad Parvaiz
AIM: To analyses the current literature regarding the urogenital functional outcomes of patients receiving robotic rectal cancer surgery. METHODS: A comprehensive literature search of electronic databases was performed in October 2015. The following search terms were applied: "rectal cancer" or "colorectal cancer" and robot* or "da Vinci" and sexual or urolog* or urinary or erect* or ejaculat* or impot* or incontinence. All original studies examining the urological and/or sexual outcomes of male and/or female patients receiving robotic rectal cancer surgery were included...
November 27, 2016: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27933135/impact-of-laparoscopic-surgery-training-laboratory-on-surgeon-s-performance
#7
REVIEW
Fabio C M Torricelli, Joao Arthur B A Barbosa, Giovanni S Marchini
Minimally invasive surgery has been replacing the open standard technique in several procedures. Similar or even better postoperative outcomes have been described in laparoscopic or robot-assisted procedures when compared to open surgery. Moreover, minimally invasive surgery has been providing less postoperative pain, shorter hospitalization, and thus a faster return to daily activities. However, the learning curve required to obtain laparoscopic expertise has been a barrier in laparoscopic spreading. Laparoscopic surgery training laboratory has been developed to aid surgeons to overcome the challenging learning curve...
November 27, 2016: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27932332/the-anterolateral-capsule-of-the-knee-behaves-like-a-sheet-of-fibrous-tissue
#8
Daniel Guenther, Amir A Rahnemai-Azar, Kevin M Bell, Sebastián Irarrázaval, Freddie H Fu, Volker Musahl, Richard E Debski
BACKGROUND: The function of the anterolateral capsule of the knee has not been clearly defined. However, the contribution of this region of the capsule to knee stability in comparison with other anterolateral structures can be determined by the relative force that each structure carries during loading of the knee. PURPOSE/HYPOTHESIS: The purpose of this study was to determine the forces in the anterolateral structures of the intact and anterior cruciate ligament (ACL)-deficient knee in response to an anterior tibial load and internal tibial torque...
December 8, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27932307/modular-training-for-robot-assisted-radical-prostatectomy-where-to-begin
#9
Catherine Lovegrove, Kamran Ahmed, Giacomo Novara, Khurshid Guru, Alex Mottrie, Ben Challacombe, Henk Van der Poel, James Peabody, Prokar Dasgupta
OBJECTIVE: Effective training is paramount for patient safety. Modular training entails advancing through surgical steps of increasing difficulty. This study aimed to construct a modular training pathway for use in robot-assisted radical prostatectomy (RARP). It aims to identify the sequence of procedural steps that are learnt before surgeons are able to perform a full procedure without an intervention from mentor. DESIGN: This is a multi-institutional, prospective, observational, longitudinal study...
December 5, 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27932164/retzius-space-preservation-technique-for-robotic-assisted-laparoscopic-radical-prostatectomy-in-a-kidney-transplant-patient-first-case-in-thailand-and-our-first-experience
#10
P Jenjitranant, P Sangkum, P Sirisreetreerux, W Viseshsindh, S Patcharatrakul, W Kongcharoensombat
OBJECTIVE: The aim of this work was to report our experience in robotic-assisted laparoscopic radical prostatectomy for the treatment of localized prostate cancer in a kidney transplant recipient. METHODS: A 73-year-old man with chronic renal failure underwent living-donor kidney transplantation (KT) in 1993. His baseline creatinine after KT was ∼1.2 mg/dL. He developed lower urinary tract symptoms in 1999. He was diagnosed with benign prostatic hyperplasia and treated accordingly...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27930761/transoral-robotic-surgery-assisted-endoscopy-with-primary-site-detection-and-treatment-in-occult-mucosal-primaries
#11
Kyle M Hatten, Bert W O'Malley, Andres M Bur, Mihir R Patel, Christopher H Rassekh, Jason G Newman, Steven B Cannady, Ara A Chalian, Benjamin L Hodnett, Alexander Lin, John N Lukens, Roger B Cohen, Joshua M Bauml, Kathleen T Montone, Virginia A Livolsi, Gregory S Weinstein
Importance: Management of cervical lymph node metastasis without a known primary tumor is a diagnostic and treatment challenge for head and neck oncologists. Identification of the occult mucosal primary tumor minimizes the morbidity of treatment. Objective: To analyze the role of transoral robotic surgery (TORS) in facilitating the identification of a primary tumor site for patients presenting with squamous cell carcinoma of unknown primary (CUP). In addition, we assessed treatment deintensification by determining the number of patients who did not undergo definitive radiation therapy and chemotherapy...
December 8, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27930531/prospective-randomized-and-controlled-trial-on-ketamine-infusion-during-bilateral-axillo-breast-approach-baba-robotic-or-endoscopic-thyroidectomy-effects-on-postoperative-pain-and-recovery-profiles-a-consort-compliant-article
#12
Dong-Ho Kim, June Young Choi, Byoung-Gook Kim, Jin-Young Hwang, Seong-Joo Park, Ah-Young Oh, Young-Tae Jeon, Jung-Hee Ryu
BACKGROUND: Robotic or endoscopic thyroidectomy using bilateral axillo-breast approach (BABA) is frequently performed for excellent cosmesis. However, postoperative pain is remained as concerns due to the extent tissue dissection and tension during the operation. Ketamine is a noncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist that reduces acute postoperative pain. We evaluated the effects of intraoperative ketamine infusion on postoperative pain control and recovery profiles following BABA robotic or endoscopic thyroidectomy...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929514/evaluation-of-kidney-motion-and-target-localization-in-abdominal-sbrt-patients
#13
Marcus Sonier, William Chu, Nafisha Lalani, Darby Erler, Patrick Cheung, Renee Korol
The purpose of this study was to evaluate bilateral kidney and target translational/rotational intrafraction motion during stereotactic body radiation therapy treatment delivery of primary renal cell carcinoma and oligometastatic adrenal lesions for patients immobilized in the Elekta BodyFIX system. Bilateral kidney motion was assessed at midplane for 30 patients immobilized in a full-body dual-vacuum-cushion system with two patients immobilized via abdominal compression. Intrafraction motion was assessed for 15 patients using kilovoltage cone-beam computed tomography (kV-CBCT) datasets (n = 151) correlated to the planning CT...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929459/perturbations-of-circulating-mirnas-in-irritable-bowel-syndrome-detected-using-a-multiplexed-high-throughput-gene-expression-platform
#14
Nicolaas H Fourie, Ralph M Peace, Sarah K Abey, LeeAnne B Sherwin, John W Wiley, Wendy A Henderson
The gene expression platform assay allows for robust and highly reproducible quantification of the expression of up to 800 transcripts (mRNA or miRNAs) in a single reaction. The miRNA assay counts transcripts by directly imaging and digitally counting miRNA molecules that are labeled with color-coded fluorescent barcoded probe sets (a reporter probe and a capture probe). Barcodes are hybridized directly to mature miRNAs that have been elongated by ligating a unique oligonucleotide tag (miRtag) to the 3' end...
November 30, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27928670/tensile-strength-and-failure-load-of-sutures-for-robotic-surgery
#15
Ahmad Abiri, Omeed Paydar, Anna Tao, Megan LaRocca, Kang Liu, Bradley Genovese, Robert Candler, Warren S Grundfest, Erik P Dutson
BACKGROUND: Robotic surgical platforms have seen increased use among minimally invasive gastrointestinal surgeons (von Fraunhofer et al. in J Biomed Mater Res 19(5):595-600, 1985. doi: 10.1002/jbm.820190511 ). However, these systems still suffer from lack of haptic feedback, which results in exertion of excessive force, often leading to suture failures (Barbash et al. in Ann Surg 259(1):1-6, 2014. doi: 10.1097/SLA.0b013e3182a5c8b8 ). This work catalogs tensile strength and failure load among commonly used sutures in an effort to prevent robotic surgical consoles from exceeding identified thresholds...
December 7, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27928665/systematic-review-and-meta-analysis-of-robotic-versus-open-pancreaticoduodenectomy
#16
Long Peng, Shengrong Lin, Yong Li, Weidong Xiao
BACKGROUND: Although robotic pancreaticoduodenectomy (RPD) has been successfully performed since 2003, its advantages over open pancreaticoduodenectomy (OPD) are still uncertain. The aim of this systematic review and meta-analysis was to compare the clinical outcomes of RPD to those of OPD. METHODS: A systematic literature review was performed to identify RPD versus OPD comparative studies published between January 2003 and January 2016. Intraoperative outcomes, post-operative outcomes and oncologic safety were evaluated...
December 7, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27928434/adrenalectomy-for-cushing-s-syndrome-do-s-and-don-ts
#17
REVIEW
Paduraru Dn, Nica A, Carsote M, Valea A
Aim. To present specific aspects of adrenalectomy for Cushing's syndrome (CS) by introducing well established aspects ("do's") and less known aspects ("don'ts"). Material and Method. This is a narrative review. Results. The "do's" for laparoscopic adrenalectomy (LA) are the following: it represents the "gold standard" for secretor and non-secretor adrenal tumors and the first line therapy for CS with an improvement of cardio-metabolic co-morbidities; the success rate depending on the adequate patients' selection and the surgeon's skills...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27927235/stereoscopic-x-ray-imaging-cone-beam-ct-and-couch-positioning-in-stereotactic-radiotherapy-of-intracranial-tumors-preliminary-results-from-a-cross-modality-pilot-installation
#18
Barbara Zollner, Christian Heinz, Sabrina Pitzler, Farkhad Manapov, Steffi Kantz, Maya Christine Rottler, Maximilian Niyazi, Ute Ganswindt, Claus Belka, Hendrik Ballhausen
BACKGROUND: To assess the accuracy and precision of a fully integrated pilot installation of stereoscopic X-ray imaging and kV-CBCT for automatic couch positioning in stereotactic radiotherapy of intracranial tumors. Positioning errors as detected by stereoscopic X-ray imaging are compared to those by kV-CBCT (i.e. the accuracy of the new method is verified by the established method), and repeated X-ray images are compared (i.e. the precision of new method is determined intra-modally)...
December 7, 2016: Radiation Oncology
https://www.readbyqxmd.com/read/27927035/robotic-partial-nephrectomy-for-posterior-tumors-via-a-retroperitoneal-approach-offers-decreased-length-of-stay-compared-to-the-transperitoneal-approach-a-propensity-matched-analysis
#19
Matthew Joseph Maurice, Jihad Kaouk, Daniel Ramirez, Sam Bhayani, Mohamad E Allaf, Craig G Rogers, Michael D Stifelman
INTRODUCTION: We sought to compare surgical outcomes between transperitoneal and retroperitoneal robotic partial nephrectomy (RPN) for posterior tumors. PATIENTS AND METHODS: Using our multi-institutional RPN database, we reviewed 610 consecutive cases for posterior renal masses treated between 2007-2015. Primary outcomes were complications, operative time, length of stay (LOS), surgical margin status, and eGFR preservation. Secondary outcomes were estimated blood loss, warm ischemia time (WIT), disease recurrence, and disease-specific mortality...
December 7, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27926638/determining-optimal-route-of-hysterectomy-for-benign-indications-clinical-decision-tree-algorithm
#20
Jennifer J Schmitt, Daniel A Carranza Leon, John A Occhino, Amy L Weaver, Sean C Dowdy, Jamie N Bakkum-Gamez, Kalyan S Pasupathy, John B Gebhart
OBJECTIVE: To evaluate practice change after initiation of a robotic surgery program using a clinical algorithm to determine the optimal surgical approach to benign hysterectomy. METHODS: A retrospective postrobot cohort of benign hysterectomies (2009-2013) was identified and the expected surgical route was determined from an algorithm using vaginal access and uterine size as decision tree branches. We excluded the laparoscopic hysterectomy route. A prerobot cohort (2004-2005) was used to evaluate a practice change after the addition of robotic technology (2007)...
December 2, 2016: Obstetrics and Gynecology
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