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https://www.readbyqxmd.com/read/28550405/projective-biomechanical-depth-matching-for-soft-tissue-registration-in-laparoscopic-surgery
#1
Daniel Reichard, Dominik Häntsch, Sebastian Bodenstedt, Stefan Suwelack, Martin Wagner, Hannes Kenngott, Beat Müller-Stich, Lena Maier-Hein, Rüdiger Dillmann, Stefanie Speidel
PURPOSE: A key component of computer- assisted surgery systems is the accurate and robust registration of preoperative planning data with intraoperative sensor data. In laparoscopic surgery, this image-based registration remains challenging due to soft tissue deformations. This paper presents a novel approach for biomechanical soft tissue registration of preoperative CT data with stereo endoscopic image data. METHODS: The proposed method consists of two registrations steps...
May 26, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28545554/whipple-s-disease-mimicking-rheumatoid-arthritis-can-cause-misdiagnosis-and-treatment-failure
#2
Cornelia Glaser, Siegbert Rieg, Thorsten Wiech, Christine Scholz, Dominique Endres, Oliver Stich, Peter Hasselblatt, Walter Geißdörfer, Christian Bogdan, Annerose Serr, Georg Häcker, Reinhard E Voll, Jens Thiel, Nils Venhoff
BACKGROUND: Whipple's disease, a rare chronic infectious disorder caused by Tropheryma whipplei, may present with predominant joint manifestations mimicking rheumatoid arthritis (RA). METHODS: A retrospective single-center cohort study of seven patients was performed. Clinical symptoms were assessed by review of medical charts and Whipple's disease was diagnosed by periodic-acid-Schiff-stain and/or Tropheryma whipplei-specific polymerase-chain-reaction. RESULTS: Median age at disease onset was 54 years, six patients were male...
May 25, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28520650/balloon-dilatation-of-the-minor-duodenal-papilla-up-to-4-mm-is-safe-in-a-porcine-model
#3
Philip C Müller, Daniel C Steinemann, Peter Sauer, Kaspar Z'graggen, Georg R Linke, Beat P Müller-Stich
OBJECTIVES: Balloon dilatation of the minor duodenal papilla is a treatment option for symptomatic pancreas divisum. The histologic effects of balloon dilatation have not yet been evaluated. The aim of this study is to investigate the tolerated extent of dilatation of the minor papilla. MATERIALS AND METHODS: A dilatation of the minor papilla was performed in freshly explanted pancreas of pigs using biliary balloon dilatators. Three organs were not dilated (control group), in each 8 organs a dilatation of 4, 6, and 8 mm, respectively, was performed...
May 17, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28516147/buyer-and-seller-data-from-pay-what-you-want-and-name-your-own-price-laboratory-markets
#4
Florentin Krämer, Klaus M Schmidt, Martin Spann, Lucas Stich
Pay What You Want (PWYW) and Name Your Own Price (NYOP) are customer-driven pricing mechanisms that give customers (some) pricing power and that have been used in service industries with high fixed costs to price discriminate without setting a reference price. This paper describes buyer and seller data in a series of induced-value laboratory experiments that compare PWYW and NYOP in monopoly and competitive situations. Sellers are in a one-shot interaction with buyers. Sellers using customer-driven pricing mechanisms may exogenously or endogenously receive additional promotional benefits, for instance through word-of-mouth effects...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28484400/steroid-responsive-chronic-schizophreniform-syndrome-in-the-context-of-mildly-increased-antithyroid-peroxidase-antibodies
#5
Dominique Endres, Evgeniy Perlov, Anne Nicole Riering, Viktoria Maier, Oliver Stich, Rick Dersch, Nils Venhoff, Daniel Erny, Irina Mader, Ludger Tebartz van Elst
BACKGROUND: Schizophreniform syndromes can be divided into primary forms from polygenic causes or secondary forms due to immunological, epileptiform, monogenic, or degenerative causes. Steroid-responsive encephalopathy associated with autoimmune thyroiditis (SREAT) is a secondary immunological form associated with increased thyroid antibodies, such as antithyroid peroxidase antibodies and shows a good response to corticosteroids. CASE PRESENTATION: We present the case of a 41-year-old woman suffering from a schizophreniform syndrome...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28457791/left-atrial-appendage-occlusion-for-stroke-prevention
#6
Arijit Chanda, John P Reilly
More than 2.3 millions adults in the United States have atrial fibrillation (AF), which exposes them to a 5- fold increased risk of stroke. The left atrial appendage (LAA) appears to be the source of thrombus formation in the vast majority of these patients. Anticoagulation significantly reduces the risk of stroke, but often we encounter patients who have absolute or relative contraindication to anticoagulation. Percutaneous LAA exclusion offers an alternative to anticoagulation to decrease the risk of stroke...
April 27, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28449636/intrathecal-thyroid-autoantibody-synthesis-in-a-subgroup-of-patients-with-schizophreniform-syndromes
#7
Dominique Endres, Rick Dersch, Benedikt Hochstuhl, Bernd Fiebich, Tilman Hottenrott, Evgeniy Perlov, Simon Maier, Benjamin Berger, Annette Baumgartner, Nils Venhoff, Oliver Stich, Ludger Tebartz van Elst
Schizophreniform syndromes in combination with autoimmune thyroiditis and increased serum thyroid antibodies lead healthcare practitioners to consider a diagnosis of Hashimoto's encephalopathy. To detect specific biomarkers, the authors analyzed whether intrathecal antithyroid antibody synthesis occurred in a subgroup of schizophreniform patients. In doing so, the authors analyzed thyroid antibodies in paired cerebrospinal fluid and serum samples from 100 schizophreniform patients. Increased antibody indices (AIs) for antithyroid peroxidase or antithyroglobulin autoantibodies in 13 schizophreniform patients were found...
April 28, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28435129/laparoscopic-sacral-colpopexy-the-%C3%A2-6points-%C3%A2-technique
#8
Marie Schaub, Lise Lecointre, Emilie Faller, Thomas Boisramé, Jean-Jacques Baldauf, Arnaud Wattiez, Cherif Youssef Akladios
STUDY OBJECTIVE: Illustrate laparoscopic sacral colpopexy for pelvic organ prolapse, a new method using a simplified mesh fixation technique, with only six fixation points DESIGN: A step-by-step explanation of the surgery using video (educative video) The video was approved by the local IRB. SETTING: University Hospital of Strasbourg, France. PATIENTS: Women with multicompartment prolapse INTERVENTION: First, we dissect the promontorium, and vertically incise the posterior parietal peritoneum on the right pelvic sidewall until the pouch of Douglas...
April 18, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28385269/withdrawn-molecular-detection-of-mycoplasma-haemofelis-candidatus-mycoplasma-haemominutum-and-candidatus-mycoplasma-turicensis-in-stray-cats-residing-in-monasteries-of-bangkok-thailand
#9
Ketsarin Kamyingkird, Tawisa Jiyipong, Sirichai Wongnarkpet, Patamaporn Amavisit, Séverine Tasker, Roger W Stich, Sathaporn Jittapalapong
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
January 21, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28327195/does-rating-the-operation-videos-with-a-checklist-score-improve-the-effect-of-e-learning-for-bariatric-surgical-training-study-protocol-for-a-randomized-controlled-trial
#10
Javier Rodrigo De La Garza, Karl-Friedrich Kowalewski, Mirco Friedrich, Mona Wanda Schmidt, Thomas Bruckner, Hannes Götz Kenngott, Lars Fischer, Beat-Peter Müller-Stich, Felix Nickel
BACKGROUND: Laparoscopic training has become an important part of surgical education. Laparoscopic Roux-en-Y gastric bypass (RYGB) is the most common bariatric procedure performed. Surgeons must be well trained prior to operating on a patient. Multimodality training is vital for bariatric surgery. E-learning with videos is a standard approach for training. The present study investigates whether scoring the operation videos with performance checklists improves learning effects and transfer to a simulated operation...
March 21, 2017: Trials
https://www.readbyqxmd.com/read/28301879/laparoscopic-transgastric-circumferential-stapler-assisted-vs-endoscopic-esophageal-mucosectomy-in-a-porcine-model
#11
Daniel C Steinemann, Andreas Zerz, Philip C Müller, Peter Sauer, Anja Schaible, Felix Lasitschka, Anne-Catherine Schwarz, Beat P Müller-Stich, Georg R Linke
Background and study aims Extensive endoscopic mucosal resection (EMR) for Barrett's esophagus (BE) may lead to stenosis. Laparoscopic, transgastric, stapler-assisted mucosectomy (SAM) with the retrieval of a circumferential specimen is proposed. Methods SAM was evaluated in two phases. The feasibility of SAM and the quality of specimens were assessed in eight animals. The mucosal healing was evaluated in a 6-week survival experiment comparing SAM (n = 6) with EMR (n = 6). The ratio of the esophageal lumen width (REL) at the resection level measured on fluoroscopy at 6 weeks divided by the width immediately after resection was compared...
March 16, 2017: Endoscopy
https://www.readbyqxmd.com/read/28295413/using-a-handheld-stereo-depth-camera-to-overcome-limited-field-of-view-in-simulation-imaging-for-radiation-therapy-treatment-planning
#12
Cesare Jenkins, Lei Xing, Amy Yu
PURPOSE: A correct body contour is essential for reliable treatment planning in radiation therapy. While modern medical imaging technologies provide highly accurate patient modeling, there are times when a patient's anatomy cannot be fully captured or there is a lack of easy access to computed tomography (CT) simulation. Here, we provide a practical solution to the surface contour truncation problem by using a handheld stereo depth camera (HSDC) to obtain the missing surface anatomy and a surface-surface image registration to stich the surface data into the CT dataset for treatment planning...
March 11, 2017: Medical Physics
https://www.readbyqxmd.com/read/28281120/transduodenal-transpapillary-endopancreatic-surgery-with-a-rigid-resectoscope-experiments-on-ex-vivo-in-vivo-animal-models-and-human-cadavers
#13
Philip C Müller, Daniel C Steinemann, Felix Nickel, Lukas Chinczewski, Beat P Müller-Stich, Georg R Linke, Kaspar Z'graggen
BACKGROUND: Surgery for chronic pancreatitis is afflicted with high morbidity. A novel transduodenal-transpapillary endopancreatic resection (EPR) may provide a less invasive alternative approach. MATERIALS AND METHODS: After laparoscopic duodenotomy the papilla was dilated and accessed with a rigid resectoscope. A resection of pancreatic head tissue was performed from inside the organ. First, the feasibility and resection volume were assessed in bovine pancreas...
March 9, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28281111/validation-of-the-mobile-serious-game-application-touch-surgery%C3%A2-for-cognitive-training-and-assessment-of-laparoscopic-cholecystectomy
#14
Karl-Friedrich Kowalewski, Jonathan D Hendrie, Mona W Schmidt, Tanja Proctor, Sai Paul, Carly R Garrow, Hannes G Kenngott, Beat P Müller-Stich, Felix Nickel
BACKGROUND: Touch Surgery(™) (TS) is a serious gaming application for cognitive task simulation and rehearsal of key steps in surgical procedures. The aim was to establish face, content, and construct validity of TS for laparoscopic cholecystectomy (LC). Furthermore, learning curves with TS and a virtual reality (VR) trainer were compared in a randomized trial. METHODS: The performance of medical students and general surgeons was compared for all three modules of LC in TS to establish construct validity...
March 9, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28258905/role-of-surgery-in-the-management-of-patients-with-supratentorial-spontaneous-intracerebral-hematoma-critical-appraisal-of-evidence
#15
REVIEW
Taiwo Akhigbe, Ardalan Zolnourian
BACKGROUND: Whether surgery improves the outcome more than medical management alone continues to be a subject of intense debate and controversy. However, there is optimism that the management of spontaneous supratentorial intracerebral haemorrhage will change in future based new insight and better understanding of the acute pathophysiology of hematomas and its dynamics. Craniotomy as a surgical approach has been the most studied intervention for spontaneous supratentorial intracerebral haemorrhage but with no significant benefit when compared to best medical management...
May 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28244744/land-use-regression-models-for-ultrafine-particles-in-six-european-areas
#16
Erik van Nunen, Roel Vermeulen, Ming-Yi Tsai, Nicole Probst-Hensch, Alex Ineichen, Mark Davey, Medea Imboden, Regina Ducret-Stich, Alessio Naccarati, Daniela Raffaele, Andrea Ranzi, Cristiana Ivaldi, Claudia Galassi, Mark Nieuwenhuijsen, Ariadna Curto, David Donaire-Gonzalez, Marta Cirach, Leda Chatzi, Mariza Kampouri, Jelle Vlaanderen, Kees Meliefste, Daan Buijtenhuijs, Bert Brunekreef, David Morley, Paolo Vineis, John Gulliver, Gerard Hoek
Long-term ultrafine particle (UFP) exposure estimates at a fine spatial scale are needed for epidemiological studies. Land use regression (LUR) models were developed and evaluated for six European areas based on repeated 30 min monitoring following standardized protocols. In each area; Basel (Switzerland), Heraklion (Greece), Amsterdam, Maastricht, and Utrecht ("The Netherlands"), Norwich (United Kingdom), Sabadell (Spain), and Turin (Italy), 160-240 sites were monitored to develop LUR models by supervised stepwise selection of GIS predictors...
March 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28220219/-the-way-from-cost-approval-to-bariatric-surgery-analysis-of-resource-utilization-in-a%C3%A2-maximum-care-hospital
#17
F Nickel, C Tapking, U Zech, K Huennemeyer, A T Billeter, P C Müller, H G Kenngott, B P Müller-Stich, L Fischer
BACKGROUND: Morbid obesity is a medical and economic challenge. Patients who have the indications for bariatric surgery face a long way from the first visit until surgery and a high utilization of resources is required. OBJECTIVES: The present study aimed to evaluate labor costs and labor time required to supervise obese patients from their first visit until preparation of a bariatric report to ask for cost acceptance of bariatric surgery from their health insurance...
February 20, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28209155/intranasal-oxytocin-reduces-provoked-symptoms-in-female-patients-with-posttraumatic-stress-disorder-despite-exerting-sympathomimetic-and-positive-chronotropic-effects-in-a-randomized-controlled-trial
#18
RANDOMIZED CONTROLLED TRIAL
M Sack, D Spieler, L Wizelman, G Epple, J Stich, M Zaba, U Schmidt
BACKGROUND: Posttraumatic stress disorder (PTSD) is a severe psychiatric disease accompanied by neuroendocrine changes such as adrenergic overdrive and hence an elevated cardiovascular morbidity. Current pharmacotherapeutic options for PTSD are less than suboptimal, necessitating the development of PTSD-specific drugs. Although the neuropeptide oxytocin has been repeatedly suggested to be effective in PTSD treatment, there are, to our knowledge, only three studies that have assessed its efficacy on the intensity of PTSD symptoms in PTSD patients - among them one symptom provocation study in male veterans...
February 17, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28202236/impact-of-land-use-on-water-quality-in-the-upper-nisa-catchment-in-the-czech-republic-and-in-germany
#19
Matthias Kändler, Katja Blechinger, Christina Seidler, Vilém Pavlů, Martin Šanda, Tomáš Dostál, Josef Krása, Tomáš Vitvar, Martin Štich
No abstract text is available yet for this article.
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28199489/value-of-cardiovascular-magnetic-resonance-imaging-derived-baseline-left-ventricular-ejection-fraction-and-volumes-for-precise-risk-stratification-of-patients-with-ischemic-cardiomyopathy-insights-from-the-surgical-treatment-for-ischemic-heart-failure-stich
#20
Ramdas G Pai, Padmini Varadarajan, Jean L Rouleau, Amanda L Stebbins, Eric J Velazquez, Hussein R Al-Khalidi, Gerald M Pohost
No abstract text is available yet for this article.
May 1, 2017: JAMA Cardiology
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