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https://www.readbyqxmd.com/read/28226715/adaptive-segmentation-and-mask-specific-sobolev-inpainting-of-specular-highlights-for-endoscopic-images
#1
Samar M Alsaleh, Angelica I Aviles, Pilar Sobrevilla, Alicia Casals, James K Hahn, Samar M Alsaleh, Angelica I Aviles, Pilar Sobrevilla, Alicia Casals, James K Hahn, Angelica I Aviles, Samar M Alsaleh, Alicia Casals, Pilar Sobrevilla, James K Hahn
Minimally invasive surgical and diagnostic systems rely on endoscopic images of internal organs to assist medical tasks. Specular highlights are common on those images due to the strong reflectivity of the mucus layer on the organs and the relatively high intensity of the light source. This is a significant source of error that can affect the systems' performance. In this paper, we propose a segmentation method of the specular regions based on an automatic color-adaptive threshold and a gradient-based edge detector...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223775/a-comparison-of-three-different-corneal-marking-methods-used-to-determine-cyclotorsion-in-the-horizontal-meridian
#2
Hung-Yuan Lin, Yi-Ting Fang, Ya-Jung Chuang, Justin N Karlin, Hsin-Yang Chen, Szu-Yuan Lin, Pi-Jung Lin, Ming Chen
During toric intraocular lens (IOL) implantation, surgeons must take particular care to ensure that inaccurate preoperative measurement and intraoperative misalignment do not cause unexpected postoperative residual astigmatism. This retrospective, comparative case series study aimed to analyze the rotational deviation, or cyclotorsion, of three corneal marking methods: VERION digital marker (VDM; reference), horizontal slit beam marking (HSBM), and subjective direct visual marking (SDVM) on the table (using a bevel knife tip)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28221337/modulation-of-digital-flexor-tendon-healing-by-vascular-endothelial-growth-factor-gene-transfection-in-a-chicken-model
#3
W F Mao, Y F Wu, Q Q Yang, Y L Zhou, J B Tang
A major challenge in tendon injury is the weak intrinsic healing capacity of tendon, which may cause re-rupture after surgery. Growth factors are believed to be critical during tendon healing. This study aimed to investigate the effects of vascular endothelial growth factor (VEGF) genes delivered by adeno-associated virus (AAV) vectors on tendon healing and molecular events involved in a chicken model. One hundred and twenty eight deep flexor tendons in the long toes of chickens were completely transected and injected with 2 × 10(9) particles of AAV2-VEGF or saline before surgically repaired...
February 21, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28215049/laparoscopic-implantation-of-artificial-urinary-sphincter-in-women-with-intrinsic-sphincter-deficiency-mid-term-outcomes
#4
Carlos Ferreira, Pierre-Emannuel Brychaert, Johann Menard, Eric Mandron
OBJECTIVES: To analyze the safety and the mid-term continence rates of laparoscopic implantation of artificial urinary sphincter in women. METHODS: A total of 52 women with intrinsic sphincter deficiency underwent a laparoscopic artificial urinary sphincter implantation from 2005 to 2015 at Surgical Clinic Du Pré, Le Mans, France. The artificial urinary sphincter was implanted around the bladder neck by a transperitoneal laparoscopic approach to the Retzius space...
February 19, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28213847/ultra-short-stem-anchorage-in-the-proximal-tibial-epiphysis-after-intercalary-tumor-resections-analysis-of-reconstruction-survival-in-four-patients-at-a-mean-follow-up-of-56-months
#5
W K Guder, J Hardes, G Gosheger, M Nottrott, A Streitbürger
INTRODUCTION: Tumors localized in the proximal tibial meta-diaphysis often lead to osteoarticular resections. MATERIALS AND METHODS: In this study, we retrospectively reviewed four patients who underwent intercalary tumor resection and reconstruction using an ultra-short stem in the proximal tibial epiphysis, a procedure that to our knowledge has not been reported in literature so far. RESULTS: At the time of operation, the mean patient age was 26...
February 17, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28212404/the-pineal-gland-a-model-for-adrenergic-modulation-of-ubiquitin-ligases
#6
Jerry Vriend, Wenjun Liu, Russel J Reiter
INTRODUCTION: A recent study of the pineal gland of the rat found that the expression of more than 3000 genes showed significant day/night variations (The Hartley dataset). The investigators of this report made available a supplemental table in which they tabulated the expression of many genes that they did not discuss, including those coding for components of the ubiquitin proteasome system. Herein we identify the genes of the ubiquitin proteasome system whose expression were significantly influenced by environmental lighting in the Hartley dataset, those that were stimulated by DBcAMP in pineal glands in culture, and those that were stimulated by norepinephrine...
2017: PloS One
https://www.readbyqxmd.com/read/28203007/-diagnossis-and-treatment-of-complicated-anterior-teeth-esthetic-defects-by-combination-of-whole-process-digital-esthetic-rehabilitation-with-periodontic-surgery
#7
Z Li, Y S Liu, H Q Ye, Y S Liu, W J Hu, Y S Zhou
OBJECTIVE: To explore a new method of whole-process digital esthetic prosthodontic rehabilitation combined with periodontic surgery for complicated anterior teeth esthetic defects accompanied by soft tissue morphology, to provide an alternative choice for solving this problem under the guidance of three-dimensional (3D) printing digital dental model and surgical guide, thus completing periodontic surgery and digital esthetic rehabilitation of anterior teeth. METHODS: In this study, 12 patients with complicated esthetic problems accompanied by soft tissue morphology in their anterior teeth were included...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28199463/effect-of-methyl-aminolevulinate-photodynamic-therapy-with-and-without-ablative-fractional-laser-treatment-in-patients-with-microinvasive-squamous-cell-carcinoma-a-randomized-clinical-trial
#8
Seung-Hwan Choi, Ki-Ho Kim, Ki-Hoon Song
Importance: Surgical excision is the standard treatment for cutaneous squamous cell carcinoma (SCC). However, microinvasive SCC (Clark level II) is limited to the papillary dermis, and it should be differentiated from invasive SCC. Ablative fractional laser-primed photodynamic therapy (AFL-PDT) may have enhanced efficacy. Objective: To compare 1 session of AFL-PDT with 2 sessions of conventional methyl aminolevulinate-PDT (MAL-PDT) for the treatment of microinvasive SCC...
February 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28192874/lateral-femoral-cutaneous-nerve-transposition-renaissance-of-an-old-concept-in-the-light-of-new-anatomy
#9
Amgad Hanna
INTRODUCTION: Meralgia paresthetica causes pain in the anterolateral thigh. Most surgical procedures involve nerve transection or decompression. We conducted a cadaveric study to determine the feasibility of lateral femoral cutaneous nerve (LFCN) transposition. MATERIALS AND METHODS: In three cadavers, the LFCN was exposed in the thigh and retroperitoneum. The two layers of the LFCN canal superficial and deep to the nerve were opened. The nerve was then mobilized medially away from the ASIS, by cutting the septum medial to sartorius...
February 13, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28192219/a-qualitative-study-of-overweight-and-obese-australians-views-of-food-addiction
#10
A J Cullen, A Barnett, P A Komesaroff, W Brown, K S O'Brien, W Hall, A Carter
The concept of food addiction is increasingly used in the academic literature and popular media to explain some forms of overweight and obesity. However, there is limited evidence on how this term is understood by and impacts overweight and obese individuals. This qualitative study investigated the views of overweight and obese individuals on food addiction, and its likely impact upon stigma, treatment-seeking, and support for public policies to reduce overeating. Semi-structured interviews were conducted with 23 overweight and obese individuals (Mage = 38, MBMI = 33, 74% female) and analysed thematically...
February 10, 2017: Appetite
https://www.readbyqxmd.com/read/28190732/the-macronuclear-genome-of-stentor-coeruleus-reveals-tiny-introns-in-a-giant-cell
#11
Mark M Slabodnick, J Graham Ruby, Sarah B Reiff, Estienne C Swart, Sager Gosai, Sudhakaran Prabakaran, Ewa Witkowska, Graham E Larue, Susan Fisher, Robert M Freeman, Jeremy Gunawardena, William Chu, Naomi A Stover, Brian D Gregory, Mariusz Nowacki, Joseph Derisi, Scott W Roy, Wallace F Marshall, Pranidhi Sood
The giant, single-celled organism Stentor coeruleus has a long history as a model system for studying pattern formation and regeneration in single cells. Stentor [1, 2] is a heterotrichous ciliate distantly related to familiar ciliate models, such as Tetrahymena or Paramecium. The primary distinguishing feature of Stentor is its incredible size: a single cell is 1 mm long. Early developmental biologists, including T.H. Morgan [3], were attracted to the system because of its regenerative abilities-if large portions of a cell are surgically removed, the remnant reorganizes into a normal-looking but smaller cell with correct proportionality [2, 3]...
February 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28185975/effect-of-geopolitical-forces-on-neurosurgical-training-in-sub-saharan-africa
#12
Kara E Dempsey, Mahmood M Qureshi, Solomon M Ondoma, Robert J Dempsey
BACKGROUND: The population of Sub-Saharan Africa suffers from a critical shortage and maldistribution of healthcare professionals, especially highlighted in surgical subspecialties such as neurosurgery. In light of the Lancet Report and the World Health Organization's directive to provide essential surgical care through the developing world, solutions need to be found to close this training and distribution gap. METHODS: Methods correcting the situation will only succeed if one understands the geopolitical forces which have shaped the distribution of healthcare in the region and continue to this day...
February 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28182736/comparison-of-clinical-and-radiological-outcomes-between-opening-wedge-and-closing-wedge-high-tibial-osteotomy-a-comprehensive-meta-analysis
#13
Lingfeng Wu, Jun Lin, Zhicheng Jin, Xiaobin Cai, Weiyang Gao
High tibial osteotomy (HTO) has been widely used for clinical treatment of osteoarthritis of the medial compartment of the knee, and both opening-wedge and closing-wedge HTO are the most commonly used methods. However, it remains unclear which technique has better clinical and radiological outcomes in practice. To systematically evaluate this issue, we conducted a comprehensive meta-analysis by pooling all available data for the opening-wedge HTO and closing-wedge HTO techniques from the electronic databases including PubMed, Embase, Wed of Science and Cochrane Library...
2017: PloS One
https://www.readbyqxmd.com/read/28181469/differences-and-relationships-between-normal-and-atypical-ductal-hyperplasia-ductal-carcinoma-in-situ-and-invasive-ductal-carcinoma-tissues-in-the-breast-based-on-raman-spectroscopy
#14
Bing Han, Ye Du, Ton Fu, Zhimin Fan, Shuping Xu, Chengxu Hu, Lirong Bi, Ting Gao, Haipeng Zhang, Weiqing Xu
The aim of this study was to find the differences and relationships between normal, atypical ductal hyperplasia (ADH), ductal carcinoma in situ (DCIS), and invasive ductal carcinoma (IDC) lesions of the breast based on biochemical characteristics determined by Raman spectroscopy (RS). After collecting 39 frozen sections from patients who underwent surgical resection or mammotome biopsy, nine normal tissues, seven ADH, eight DCIS, and 15 IDC lesions were detected using confocal RS. We then used leave-one-out cross-validation (LOOCV) and radial basis function (RBF) to build a support vector machine (SVM) diagnosis model...
February 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28180100/surgical-outcomes-of-forearm-loop-arteriovenous-fistula-formation-using-tapered-versus-non-tapered-polytetrafluoroethylene-grafts
#15
Sun Han, Pil Won Seo, Jae-Wook Ryu
BACKGROUND: Tapered grafts, which have a smaller diameter on the arterial side, have been increasingly used for arteriovenous fistula (AVF) formation. We compared the outcomes of 4-6-mm tapered and 6-mm straight forearm loop arteriovenous grafts. METHODS: A total of 103 patients receiving forearm loop arteriovenous grafts between March 2005 and March 2015 were retrospectively analyzed and separated into 2 groups (group A, 4- to 6-mm tapered grafts, n=78; group B, 6-mm straight grafts, n=25)...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28180096/the-frozen-elephant-trunk-technique-european-association-for-cardio-thoracic-surgery-position-and-bologna-experience
#16
REVIEW
Luca Di Marco, Antonio Pantaleo, Alessandro Leone, Giacomo Murana, Roberto Di Bartolomeo, Davide Pacini
Complex lesions of the thoracic aorta are traditionally treated in 2 surgical steps with the elephant trunk technique. A relatively new approach is the frozen elephant trunk (FET) technique, which potentially allows combined lesions of the thoracic aorta to be treated in a 1-stage procedure combining endovascular treatment with conventional surgery using a hybrid prosthesis. These are very complex and time-consuming operations, and good results can be obtained only if appropriate strategies for myocardial, cerebral, and visceral protection are adopted...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28178042/feasibility-of-vaginal-hysterectomy-for-female-to-male-transgender-men
#17
Juno Obedin-Maliver, Alexis Light, Gene de Haan, Rebecca A Jackson
OBJECTIVE: To describe the hysterectomy data among a cohort of transgender men and nontransgender (ie, cisgender) women with a particular goal to evaluate the feasibility of vaginal hysterectomy among transgender men. METHODS: This cohort study includes all hysterectomies performed for benign indications on transgender men and cisgender women at a single academic county hospital from 2000 to 2012. Hysterectomy cases and patient gender were identified by billing records and confirmed by review of medical records...
March 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28177522/neutrophil-extracellular-traps-sequester-circulating-tumor-cells-via-%C3%AE-1-integrin-mediated-interactions
#18
Sara Najmeh, Jonathan Cools-Lartigue, Roni F Rayes, Stephen Gowing, Phil Vourtzoumis, France Bourdeau, Betty Giannias, Julie Berube, Simon Rousseau, Lorenzo E Ferri, Jonathan D Spicer
Despite advances in cancer treatment, metastasis remains today the main cause of cancer death. Local control through complete surgical resection of the primary tumor continues to be a key principle in cancer treatment. However, surgical interventions themselves lead to adverse oncologic outcomes and are associated with significantly increased rates of metastasis. Neutrophils through release of neutrophil extracellular traps (NETs) in response to infections were shown to be able to capture circulating cancer cells, and in doing so, support the development of metastatic disease...
February 8, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28174361/prevalence-and-pattern-of-mandibular-third-molar-impaction-in-eritrean-population-a-retrospective-study
#19
V Raj Kumar, Priya Yadav, Efrem Kahsu, Farhana Girkar, Rajnish Chakraborty
INTRODUCTION: The most commonly impacted tooth in the oral cavity is the mandibular third molar. Various etiologic factors have been suggested for impacted mandibular third molars. The pattern and prevalence of impacted mandibular third molars vary with different population and region. This study throws light on the prevalence and pattern of impacted mandibular third molars in Eritrea, East Africa. This is the first reported study regarding the same from Eritrea. AIM: To assess the prevalence and pattern of impacted mandibu-lar third molars in the population of Eritrea, East Africa by conducting a retrospective study from January 2009 to January 2014...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28160577/the-effects-of-surgical-preparation-techniques-and-implant-macro-geometry-on-primary-stability-an-in-vitro-study
#20
G Falisi, M Severino, C Rastelli, S Bernardi, S Caruso, M Galli, L Lamazza, C Di Paolo
BACKGROUND: The attainment of a good primary stability is a necessary condition to ensure the success of osseointegration in implantology. In type IV cancellous bone, however, it is possible that a reduced primary stability can lead to an increased rate of failure. The aim of this study was therefore to determine, with the help of the resonance frequency (Osstell mentor), which technique of implant site preparation (piezo surgery, conventional, under-preparation, bone compaction, osteodistraction) and macro-geometry is able to improve implant stability in type IV cancellous bone...
February 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
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