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https://www.readbyqxmd.com/read/29334236/wb-mri-and-oncology-recent-major-advances
#1
Vassiliki Pasoglou, Nicolas Michoux, Ahmed Larbi, Van Nieuwenhove Sandy, Frédéric Lecouvet
Magnetic Resonance Imaging (MRI) is a very attractive approach for tumor detection and oncological staging with its absence of ionizing radiation, high soft tissue contrast and spatial resolution. Less than ten years ago the use of Whole Body MRI (WB-MRI) protocols was uncommon due to many limitations, such as the long acquisition times and limited availability. This decade has marked substantial progress in WB-MRI protocols. This very promising technique is rapidly arising from the research world and is becoming a commonly used exam for tumor detection, due to recent technological developments and validation of WB-MRI by multiple studies and consensus papers...
January 15, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29334131/a-bayesian-method-for-accelerated-magnetic-resonance-elastography-of-the-liver
#2
Christopher Ebersole, Rizwan Ahmad, Adam V Rich, Lee C Potter, Huiming Dong, Arunark Kolipaka
PURPOSE: Magnetic resonance elastography is a noninvasive tool for quantifying soft tissue stiffness. Magnetic resonance elastography has been adopted as a clinical method for staging liver fibrosis. However, the application of liver magnetic resonance elastography requires multiple lengthy breath-holds. We propose a new data acquisition and processing method to reduce magnetic resonance elastography scan time. METHODS: A Bayesian image reconstruction method that uses transform sparsity and magnitude consistency across different phase offsets to recover images from highly undersampled data is proposed...
January 15, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29333767/-clinical-applications-of-periodontal-gingival-surgery-%C3%A2-autogenous-grafts
#3
Erjia Mao
The field of periodontics has become increasingly discussed and advanced in recent decades. The techniques of periodontal soft tissue grafts are among these advancements. The techniques have been used more and more clinically not only in periodontics, but also in the areas of dental implantology, aesthetics, and orthodontics. In this article, we discuss the clinical indications and the advantages and disadvantages of several autogenous tissue grafts (e.g. pedical grafts, free gingival graft, and subepithelial connective tissue graft)...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29332928/optical-coherence-tomography-for-precision-brain-imaging-neurosurgical-guidance-and-minimally-invasive-theranostics
#4
Yingwei Fan, Yan Xia, Xinran Zhang, Yu Sun, Jie Tang, Liwei Zhang, Hongen Liao
This review focuses on optical coherence tomography (OCT)-based neurosurgical application for imaging and treatment of brain tumors. OCT has emerged as one of the most innovative and successful translational biomedical-diagnostic techniques. It is a useful imaging tool for noninvasive, in vivo, in situ and real-time imaging in soft biological tissues, such as brain tumor imaging. OCT can detect the structure of biological tissue in a micrometer scale, and functional OCT has some clinical researches and applications, such as nerve fiber tracts and neurovascular imaging...
January 15, 2018: Bioscience Trends
https://www.readbyqxmd.com/read/29330959/non-destructive-determination-of-muscle-architectural-variables-through-the-use-of-dicect
#5
Edwin Dickinson, Heiko Stark, Kornelius Kupczik
The fascicular architecture of skeletal muscle dictates functional parameters such as force production and contractile velocity. Muscle microarchitecture is typically determined by means of manual dissection, a technique that is inherently destructive to specimens. Furthermore, fascicle lengths and pennation angles are commonly assessed at only a limited number of sampling sites per muscle. We present the results of a digital technique to non-destructively assess muscle architectural variables for three jaw-adductor muscles within a specimen of the cercopithecine primate Macaca fascicularis (crab-eating macaque)...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29330957/behavioral-correlates-of-cranial-muscle-functional-morphology
#6
Adam Hartstone-Rose, Sharlene E Santana
This issue of the Anatomical Record is the first of a two-volume set that focuses on new investigations into behavioral correlates of muscle functional morphology. Much of the research on functional morphology and adaptation to specific functional niches focuses on the shapes of hard-tissues-bones and teeth. Investigations into soft-tissue anatomy tend to be predominantly descriptive with only brief allusion to ontogenetic or evolutionary origins of structures. When muscles are included in analyses of functional systems, their function tends to be oversimplified-usually considered a simple force vector connecting two osteological points, with the force treated as a constant derived from some simple calculation of muscle size...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29330951/dynamic-musculoskeletal-functional-morphology-integrating-dicect-and-xromm
#7
Courtney P Orsbon, Nicholas J Gidmark, Callum F Ross
The tradeoff between force and velocity in skeletal muscle is a fundamental constraint on vertebrate musculoskeletal design (form:function relationships). Understanding how and why different lineages address this biomechanical problem is an important goal of vertebrate musculoskeletal functional morphology. Our ability to answer questions about the different solutions to this tradeoff has been significantly improved by recent advances in techniques for quantifying musculoskeletal morphology and movement. Herein, we have three objectives: (1) review the morphological and physiological parameters that affect muscle function and how these parameters interact; (2) discuss the necessity of integrating morphological and physiological lines of evidence to understand muscle function and the new, high resolution imaging technologies that do so; and (3) present a method that integrates high spatiotemporal resolution motion capture (XROMM, including its corollary fluoromicrometry), high resolution soft tissue imaging (diceCT), and electromyography to study musculoskeletal dynamics in vivo...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29329145/orthopaedic-management-of-leg-length-discrepancy-in-proteus-syndrome-a-case-series
#8
Molly M Crenshaw, Cara G Goerlich, Lauren E Ivey, Julie C Sapp, Kim M Keppler-Noreuil, Allison C Scott, Leslie G Biesecker, Laura L Tosi
INTRODUCTION: Proteus syndrome (PS) is a rare mosaic disorder comprising asymmetric bony and soft tissue overgrowth leading to significant morbidity. Placement of growth inhibition hardware with subsequent epiphyseal arrest improves leg-length and angular deformities in pediatric patients without PS. The purpose of this study was to review the surgical approach and present outcomes, complications, and recommendations in 8 patients with PS and leg-length discrepancy (LLD). METHODS: We conducted a retrospective chart review of 8 patients with PS whose primary reason for surgery was LLD...
January 11, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29327032/three-dimensional-volumetric-analysis-of-3-fat-processing-techniques-for-facial-fat-grafting-a-randomized-clinical-trial
#9
Rongwei Wu, Xiaonan Yang, Xiaolei Jin, Haibin Lu, Zhenhua Jia, Binghang Li, Haiyue Jiang, Zuoliang Qi
Importance: Autologous fat grafting has revolutionized the field of facial soft-tissue augmentation, despite a lack of standardization. Objective data are needed to arrive at consensus regarding the best technique for optimal volume retention. Objective: To compare 3 fat-processing techniques with 3-dimensional (3-D) technology to explore the optimal fat-processing technique for improving the volume retention of grafted fat. Design, Setting, and Participants: From September 2015 to December 2016, patients with facial asymmetry were treated by initial facial fat grafting at the Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College...
January 11, 2018: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29322900/surgical-technique-description-transosseous-over-the-top-reconstruction-of-capsule-and-tendons-in-primary-total-hip-arthroplasty-using-a-posterior-approach
#10
W Sioen, G Meermans, A Lenaert
Dislocation after total hip arthroplasty (THA) remains a devastating complication and a primary cause for revision arthroplasty. Historical data indicate that a posterior approach is associated with a higher dislocation rate. In this study, we present a highly reliable and anatomical reconstruction, based on the biomechanical findings of a previous cadaveric experiment. The posterior soft tissues were repaired in 2 layers. First a reattachment of the posterior orbicular ligament is performed at the anterior capsule...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322270/recent-developments-in-evaluation-and-treatment-of-lateral-patellar-instability
#11
REVIEW
Alexander Zimmerer, Christian Sobau, Peter Balcarek
Recent years have been characterized by an ongoing increase in knowledge about the different conditions associated with lateral patellar instability. This increase in knowledge provides differentiated approaches to the various pathologies of the patellofemoral joint. Though current guidelines consider medial patellofemoral ligament (MPFL) reconstruction the basic treatment for the unstable patella, medial soft tissue-stabilizing procedures should not be interpreted as stand-alone procedures in every case. The influence of different anatomical factors leading to patellar instability, as well as their impact on clinical outcome measures, is becoming increasingly apparent and deserves further attention...
January 10, 2018: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29322251/rhinoplasty-lessons-from-errors-from-anatomy-and-experience-to-the-concept-of-sequential-primary-rhinoplasty
#12
REVIEW
Y Saban
BACKGROUND: Reshaping the nose can be achieved following 3 main concepts: preservation and reshaping of normal anatomy, resection of nasal deformities, reconstruction of nasal framework. Time, experience and nasal anatomic knowledge are keys to understand nasal biomechanics. OBJECTIVES: To describe how experience and morphodynamic anatomy lead to a new concept of sequential primary rhinoplasty, resulting in reducing revision rhinoplasties. METHODS: Through 36 years' experience in different rhinoplasty procedures, 25 years in personal anatomic studies of the nose and reviewing the last 15 years including 600 patients who underwent new concepts in primary rhinoplasty out of 1200 patients operated during this period, the author analyzes how nasal anatomic layers, surgical approaches, and morphological effect of the time interact to modify the aesthetic results according to current rhinoplasty concepts...
January 10, 2018: HNO
https://www.readbyqxmd.com/read/29322228/-necrotizing-fasciitis-of-the-hand-and-forearm-acute-surgical-treatment-and-defect-reconstruction-with-matriderm%C3%A2-and-split-thickness-skin-graft
#13
B Niedermueller, G Singer, P Pickl, M Jesacher
This case report describes a 55-year-old male patient with type II necrotizing fasciitis (NF) of the hand and forearm. The rapid progression of the tissue infection could be successfully stopped with radical surgical débridement and antibiotic therapy. For the reconstruction of the extensive loss of soft tissue a combination of split-thickness skin graft (STSG) and the synthetic dermal substitute MatriDerm® was used. In cases of NF, MatriDerm® and STSG provide a rapidly available and simple alternative to other reconstruction techniques...
January 10, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29319575/duplex-ultrasonography-assisted-freestyle-pedicled-perforator-flaps-for-the-repair-of-myelomeningocele-defects
#14
Atsushi Imaizumi
BACKGROUND: Perforator flaps have unique advantages that may overcome the shortcomings of conventional approaches to myelomeningocele reconstruction. However, identifying and dissecting tiny perforators in neonates is arduous. We have overcome these obstacles with a freestyle flap approach that uses duplex ultrasonography to locate perforator vessels, allowing for limited superficial dissection. This report describes the duplex ultrasonography-assisted freestyle pedicled perforator flap technique for closure of myelomeningocele defects, with long-term clinical outcomes...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29319572/vascularized-composite-allotransplantation-of-the-elbow-joint-a-cadaveric-study
#15
Mitchell A Pet, Angelo B Lipira, Yusha Liu, Dennis Kao, Jason H Ko
BACKGROUND: Surgical options for the unreconstructable elbow are limited to arthrodesis, total arthroplasty, or osteoarticular allograft reconstruction. Each of these options is limited by severe functional impairment and/or high complication rates. Vascularized allotransplantation of the elbow joint has the potential to mitigate these complications. In this study, we describe our technique for harvesting the elbow for vascularized joint transplantation and demonstrate the flap's vascularity using contrast angiography...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29318761/suitability-of-the-cellienttm-cell-block-method-for-diagnosing-soft-tissue-and-bone-tumors
#16
W Song, B M van Hemel, A J H Suurmeijer
BACKGROUND: The diagnosis of tumors of soft tissue and bone (STB) heavily relies on histological biopsies, whereas cytology is not widely used. CellientTM cell blocks often contain small tissue fragments. In addition to Hematoxylin and Eosin (H&E) interpretation of histological features, immunohistochemistry (IHC) can be applied after optimization of protocols. The objective of this retrospective study was to see whether this cytological technique allowed us to make a precise diagnosis of STB tumors...
January 10, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29317046/retro-peritoneal-cooling-for-kidney-preservation-from-multi-organ-cadaver-donors
#17
Anastasio Salazar-Bañuelos, Mauricio Monroy-Cuadros, Hoover Henriquez-Cooper
BACKGROUND: Minimizing ischemia is paramount in the procurement of kidneys for transplantation. A fast cooling and expeditious removal is ideal to minimize damage from warm ischemia, however, since the removal of kidneys is delayed in cadaver donation until all other organs are harvested, the risk of kidney damage increases due to contact with the warmer soft body tissues. Surgical techniques that expedite organ retrieval were developed to avoid organ damage. METHODS: We test a modification of Thomas Starzl's improved technique for multi-organ harvesting by interposing an ice bag between the posterior aspect of the kidney and the psoas muscle in a randomized trial with 21 multi-organ cadaver donors...
January 4, 2018: American Journal of Surgery
https://www.readbyqxmd.com/read/29315214/chitosan-cellulose-multifunctional-hydrogel-beads-design-characterization-and-evaluation-of-cytocompatibility-with-breast-adenocarcinoma-and-osteoblast-cells
#18
Poonam Trivedi, Tiina Saloranta-Simell, Uroš Maver, Lidija Gradišnik, Neeraj Prabhakar, Jan-Henrik Smått, Tamilselvan Mohan, Martin Gericke, Thomas Heinze, Pedro Fardim
Cytocompatible polysaccharide-based functional scaffolds are potential extracellular matrix candidates for soft and hard tissue engineering. This paper describes a facile approach to design cytocompatible, non-toxic, and multifunctional chitosan-cellulose based hydrogel beads utilising polysaccharide dissolution in sodium hydroxide-urea-water solvent system and coagulation under three different acidic conditions, namely 2 M acetic acid, 2 M hydrochloric acid, and 2 M sulfuric acid. The effect of coagulating medium on the final chemical composition of the hydrogel beads is investigated by spectroscopic techniques (ATR-FTIR, Raman, NMR), and elemental analysis...
January 9, 2018: Bioengineering
https://www.readbyqxmd.com/read/29315173/factors-associated-with-acute-and-chronic-wound-complications-in-patients-with-soft-tissue-sarcoma-with-long-term-follow-up
#19
Naveen Karthik, Matthew C Ward, Aditya Juloori, Jacob Scott, Nathan Mesko, Chirag Shah
OBJECTIVES: To identify the rates of acute and chronic wound complications and factors associated in a cohort of patients treated for soft tissue sarcoma (STS) with modern radiotherapy (RT) and surgical techniques. MATERIALS AND METHODS: An Institutional Review Board-approved database was used to identify all adult nonmetastatic patients treated for STS at a single institution between 2006 and 2015 with a minimum follow-up of 1 year. Factors associated with acute and chronic wound complications were analyzed using binomial logistic regression including interaction terms...
January 8, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29315067/-soft-tissue-management-to-control-nasal-changes-after-le-fort-i-osteotomy
#20
Federico Hernández-Alfaro, Ariane Paredes de Sousa Gil, Orion Luiz Haas Junior, Jorge Masià-Gridilla, Adaia Valls-Ontañón, Raquel Guijarro-Martinez
INTRODUCTION: Adverse effects in the nasolabial region should be anticipated after Le Fort I osteotomy. Intraoperative factors such as the extent of surgical dissection, type of closure and perinasal soft tissue reconstruction seem to influence soft tissue response. Attempts to control these changes have been made over the years and several techniques have been proposed. MATERIALS AND METHODS: The authors present a minimally invasive alternative surgical technique to control alar base widening as well as lip shortening...
December 2017: L' Orthodontie Française
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