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Tendon elastography

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https://www.readbyqxmd.com/read/27914201/shear-wave-ultrasound-elastographic-evaluation-of-the-rotator-cuff-tendon
#1
Stephanie W Hou, Alexander N Merkle, James S Babb, Robert McCabe, Soterios Gyftopoulos, Ronald S Adler
OBJECTIVES: (1) Assess the association between the B-mode morphologic appearance and elasticity in the rotator cuff tendon using shear wave elastography (SWE). (2) Assess the association between SWE and symptoms. METHODS: Institutional Review Board approval and informed consent were obtained. A retrospective review identified 21 studies in 19 eligible patients for whom SWE was performed during routine sonographic evaluations for shoulder pain. Evaluations were compared with 55 studies from 16 asymptomatic volunteers and 6 patients with asymptomatic contralateral shoulders...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27896400/quantitative-assessment-of-the-supraspinatus-tendon-on-mri-using-t2-t2-mapping-and-shear-wave-ultrasound-elastography-a-pilot-study
#2
Konstantin Krepkin, Mary Bruno, José G Raya, Ronald S Adler, Soterios Gyftopoulos
OBJECTIVE: To determine whether there is an association between T2/T2* mapping and supraspinatus tendon mechanical properties as assessed by shear-wave ultrasound elastography (SWE). MATERIALS AND METHODS: This HIPAA-compliant prospective pilot study received approval from our hospital's institutional review board. Eight patients (3 males/5 females; age range 44-72 years) and nine shoulders underwent conventional shoulder MRI, T2/T2* mapping on a 3-T scanner, and SWE...
November 28, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27872419/elastographic-findings-of-achilles-tendons-in-asymptomatic-professional-male-volleyball-players
#3
Mehtap Balaban, Ilkay S Idilman, Ali Ipek, Sinem Sigit Ikiz, Bulent Bektaser, Mehmet Gumus
OBJECTIVES: Elastography is a new sonographic technique that evaluates the elasticity of different tissues such as the Achilles tendon. In this study, we aimed to investigate the elastographic findings of Achilles tendons in professional athletes in comparison with healthy volunteers. METHODS: Twenty-one professional male volleyball players with no history of Achilles trauma were included in this study. Twenty-one healthy male volunteers with similar ages and body mass indices were selected as control participants...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27833972/evaluation-of-normal-and-pathological-achilles-tendon-by-real-time-shear-wave-elastography
#4
Pompiliu HoraŢiu Petrescu, Dragoş Andrei Izvernariu, Cătălina Iancu, Gabriel Ovidiu Dinu, Dan Crişan, Simona Alina Popescu, Roxana Lucia Denisa Şirli, Bogdan Mihai Nistor, Ion Călin RăuŢia, Dorela CodruŢa Lăzureanu, Sorin Dema, Ion Radu Prejbeanu, Ioan Sporea
Tendinopathy covers a range of several tendon conditions, mostly caused by overuse but at least in Achilles tendon pathology, favored by obesity, diabetes, inflammatory and autoimmune conditions. Subclinical tendon pathology is difficult to diagnose, as magnetic resonance imaging (MRI) examinations are sometimes inconclusive and not cost-effective. Elastography is an ultrasound examination method that uses mechanical impulses to produce shear waves in the tissue of interest, then measures the tissue displacement and calculates the shear wave speed or the elastic modulus of the examined tissue...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27742141/evaluation-of-the-effect-of-an-anisotropic-medium-on-shear-wave-velocities-of-intra-muscular-gelatinous-inclusions
#5
Sébastien Aubry, Jean-Philippe Nueffer, Mathieu Carrié
In highly anisotropic biological tissues such as muscle or tendons, calculating Young's modulus from the shear wave speed (csw) by using shear wave elastography (SWE) involves a complex transversally isotropic rheological model not yet used in common practice. To our knowledge, the effect of muscle anisotropy on csw of intra-muscular lesions has not yet been investigated. The objective of our study was to define the effect of an anisotropic medium on csw of intra-muscular gelatinous inclusions. We conducted a prospective monocentric, in vitro study in order to examine the quantitative and qualitative SWE behavior of a 9-mm gelatinous intra-muscular implant depending on the orientation of the probe relative to the muscle fibers...
January 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/27738294/sonography-of-the-achilles-tendon-after-complete-rupture-repair-what-the-radiologist-should-know
#6
REVIEW
Salvatore Gitto, Anna Guja Draghi, Chandra Bortolotto, Ferdinando Draghi
This review aims to provide the radiologist with simple and systematic guidelines for evaluation of the Achilles tendon after complete rupture repair. Currently, there is a plethora of nonsurgical and surgical treatments, but sonographic examination has shown no significant differences between them. A systematic analysis of several parameters (morphologic characteristics, structure, color Doppler vascularization, and mobility) should be undertaken. Morphologically, the repaired tendon is larger, wider, or both...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27663657/effects-of-cigarette-smoking-on-elastographic-strain-ratio-measurements-of-patellar-and-achilles-tendons
#7
Kadir Ağladıoğlu, Nuray Akkaya, Harun R Güngör, Semih Akkaya, Nusret Ök, Levent Özçakar
OBJECTIVES: The aim of this study was to explore the sonographic and elastographic properties of patellar and Achilles tendons in smoking and nonsmoking otherwise healthy adults. METHODS: We conducted a level 3 case-control analytical study. Smoking and nonsmoking volunteers (>18 years) without musculoskeletal system disorders were included in the study. Demographic characteristics and smoking habits (pack-years) were recorded. Proximal, middle, and distal third thicknesses of the patellar and Achilles tendons were measured by B-mode sonography...
November 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27622405/real-time-sonoelastography-of-the-patellar-and-quadriceps-tendons-pattern-description-in-professional-athletes-and-healthy-volunteers
#8
Ayse Nur Sirin Ozcan, Sinan Tan, Nuray Gulden Tangal, Saliha Cıracı, Savas Kudas, Suleyman Bulent Bektaser, Halil Arslan
AIMS: The comparison of elastographic features of quadriceps and patellar tendons in a group of professional athletes and healthy volunteers and the description of elasticity characteristics of these tendons. MATERIAL AND METHODS: Thirty-nine professional athletes (22 male, 17 female; mean age 18.5 years) and 35 healthy volunteers (21 male, 14 female; mean age 19 years) were included. They were divided into two groups by gender. Quadriceps tendon, patellar side of the patellar tendon, and tibial side of the patellar tendon elasticity patterns and strain ratios were investigated with real-time ultrasound elastography...
September 2016: Medical Ultrasonography
https://www.readbyqxmd.com/read/27575838/shear-wave-elastography-applied-for-the-investigation-of-tendon-material-properties
#9
EDITORIAL
James F Greenleaf, Matthew W Urban
No abstract text is available yet for this article.
October 2016: Academic Radiology
https://www.readbyqxmd.com/read/27574262/length-thickness-and-elasticity-of-the-patellar-tendon-after-closed-wedge-high-tibial-osteotomy-a-shear-wave-elastographic-study
#10
H Botanlioglu, G Kaynak, F Kantarci, M F Guven, G Zengin, O Aydingoz
PURPOSE: To compare the length, thickness, and elasticity of the patellar tendon between operated and non-operated knees following closed wedge high tibial osteotomy (CWHTO). METHODS: Three men and 17 women aged 52 to 75 (mean, 64.8) years who underwent unilateral CWHTO by a single surgeon and were followed up for a mean of 11 (range, 5-22) years were included, as were 3 male and 17 female healthy controls aged 35 to 61 (mean, 47.9) years. The length, thickness, and elasticity of the bilateral patellar tendons in the patients and healthy controls were measured using shear wave elastography...
August 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/27560304/a-pilot-study-of-strain-elastography-in-the-diagnosis-of-carpal-tunnel-syndrome
#11
Matthew J Martin, Michael S Cartwright
INTRODUCTION: Strain elastography that uses the body's cardiorespiratory pulsations to determine tissue stiffness (referred to here as "ambient strain elastography") has not been previously described for the assessment of carpal tunnel syndrome. The objective of this study is to assess the reliability of ultrasonographic ambient strain elastography in the evaluation of carpal tunnel syndrome and compare median nerve stiffness between patients and healthy controls. METHODS: Ambient strain elastography was used to examine 17 patient and 26 control wrists in cross-sectional and longitudinal views, twice by two observers...
August 24, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27512376/new-imaging-methods-for-non-invasive-assessment-of-mechanical-structural-and-biochemical-properties-of-human-achilles-tendon-a-mini-review
#12
REVIEW
Alexandre Fouré
The mechanical properties of tendon play a fundamental role to passively transmit forces from muscle to bone, withstand sudden stretches, and act as a mechanical buffer allowing the muscle to work more efficiently. The use of non-invasive imaging methods for the assessment of human tendon's mechanical, structural, and biochemical properties in vivo is relatively young in sports medicine, clinical practice, and basic science. Non-invasive assessment of the tendon properties may enhance the diagnosis of tendon injury and the characterization of recovery treatments...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27371371/elastic-characteristics-of-the-normal-achilles-tendon-assessed-by-virtual-touch-imaging-quantification-shear-wave-elastography
#13
Shuai Fu, Ligang Cui, Xiaoxi He, Yang Sun
OBJECTIVES: To assess the elastic properties of the normal Achilles tendon in different age groups by Virtual Touch imaging quantification (VTIQ; Siemens Medical Solutions, Malvern, PA) shear wave elastography. METHODS: A total of 326 healthy volunteers older than 18 years were divided into different groups by sex and age. The thickness, shear wave velocity (SWV) in sagittal and axial sections, and anisotropic coefficient of the Achilles tendon in a state of relaxation were obtained by conventional sonography and Virtual Touch imaging quantification elastography...
September 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27318786/shear-wave-elastography-swe-for-the-evaluation-of-patients-with-tendinopathies
#14
Timm Dirrichs, Valentin Quack, Matthias Gatz, Markus Tingart, Christiane K Kuhl, Simone Schrading
RATIONALE AND OBJECTIVES: Shear wave elastography (SWE) has been shown to be a powerful tool to estimate tissue stiffness. The aim of this study was to compare the diagnostic accuracy of SWE to that of standard ultrasound (US) (combined use of B-mode US and power Doppler [PD] US) for diagnosing tendinopathies. MATERIALS AND METHODS: This is a prospective institutional review board-approved study on 112 participants (mean age 42 ± 13.4 years) with chronic (>6 months) tendon pain in Achilles, patellar, or epicondylar tendons...
October 2016: Academic Radiology
https://www.readbyqxmd.com/read/27279926/use-of-ultrasound-elastography-in-the-assessment-of-the-musculoskeletal-system
#15
REVIEW
Łukasz Paluch, Ewa Nawrocka-Laskus, Janusz Wieczorek, Bartosz Mruk, Małgorzata Frel, Jerzy Walecki
This article presents possible applications of ultrasound elastography in musculoskeletal imaging based on the available literature, as well as the possibility of extending indications for the use of elastography in the future. Ultrasound elastography (EUS) is a new method that shows structural changes in tissues following application of physical stress. Elastography techniques have been widely used to assess muscles and tendons in vitro since the early parts of the twentieth century. Only recently with the advent of new technology and creation of highly specialized ultrasound devices, has elastography gained widespread use in numerous applications...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27236815/quantitative-ultrasound-mapping-of-regional-variations-in-shear-wave-speeds-of-the-aging-achilles-tendon
#16
Laura Chernak Slane, Jack Martin, Ryan DeWall, Darryl Thelen, Kenneth Lee
OBJECTIVES: Evaluate the effects of aging on healthy Achilles tendon and aponeurosis shear wave speed (SWS), a quantitative metric which reflects tissue elasticity. METHODS: Shear wave elastography was used to measure spatial variations in Achilles tendon SWS in healthy young (n = 15, 25 ± 4 years), middle-aged (n = 10, 49 ± 4 years) and older (n = 10, 68 ± 5 years) adults. SWS was separately measured in the free Achilles tendon, soleus aponeurosis and gastrocnemius aponeurosis in resting (R), stretched (dorsiflexed 15° from R) and slack (plantarflexed 15° from R) postures...
May 28, 2016: European Radiology
https://www.readbyqxmd.com/read/27157656/comparison-of-passive-stiffness-changes-in-the-supraspinatus-muscle-after-double-row-and-knotless-transosseous-equivalent-rotator-cuff-repair-techniques-a-cadaveric-study
#17
Taku Hatta, Hugo Giambini, Alexander W Hooke, Chunfeng Zhao, John W Sperling, Scott P Steinmann, Nobuyuki Yamamoto, Eiji Itoi, Kai-Nan An
PURPOSE: To investigate the alteration of passive stiffness in the supraspinatus muscle after double-row (DR) and knotless transosseous-equivalent (KL-TOE) repair techniques, using shear wave elastography (SWE) in cadavers with rotator cuff tears. We also aimed to compare altered muscular stiffness after these repairs to that obtained from shoulders with intact rotator cuff tendon. METHODS: Twelve fresh-frozen cadaveric shoulders with rotator cuff tear (tear size: small [6], medium-large [6]) were used...
October 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27146818/real-time-elastography-of-patellar-tendon-in-patients-with-auto-graft-bone-tendon-bone-anterior-cruciate-ligament-reconstruction
#18
Semih Akkaya, Nuray Akkaya, Kadir Agladıoglu, Harun R Gungor, Nusret Ok, Levent Özçakar
INTRODUCTION: Patellar tendon donor site has been previously evaluated in patients with auto-graft bone-tendon-bone (BTB) anterior cruciate ligament (ACL) reconstruction using either magnetic resonance imaging or B mode ultrasound. However, donor site patellar tendon strain ratio-reflecting structural features-has not been studied with US elastography. Here, we ascertain real-time elastography properties of patellar tendon donor site and clinical relevance of these properties in patients with auto-graft BTB ACL reconstruction in the postoperative period...
June 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27120097/an-investigation-of-the-immediate-effect-of-static-stretching-on-the-morphology-and-stiffness-of-achilles-tendon-in-dominant-and-non-dominant-legs
#19
Tsz-Chun Roxy Chiu, Hiu-Ching Ngo, Lai-Wa Lau, King-Wah Leung, Man-Him Lo, Ho-Fai Yu, Michael Ying
AIMS: This study was undertaken to investigate the immediate effect of static stretching on normal Achilles tendon morphology and stiffness, and the different effect on dominant and non-dominant legs; and to evaluate inter-operator and intra-operator reliability of using shear-wave elastography in measuring Achilles tendon stiffness. METHODS: 20 healthy subjects (13 males, 7 females) were included in the study. Thickness, cross-sectional area and stiffness of Achilles tendons in both legs were measured before and after 5-min static stretching using grey-scale ultrasound and shear-wave elastography...
2016: PloS One
https://www.readbyqxmd.com/read/27072885/evaluation-of-elastic-stiffness-in-healing-achilles-tendon-after-surgical-repair-of-a-tendon-rupture-using-in-vivo-ultrasound-shear-wave-elastography
#20
Li-ning Zhang, Wen-bo Wan, Yue-xiang Wang, Zi-yu Jiao, Li-hai Zhang, Yu-kun Luo, Pei-fu Tang
BACKGROUND There has been no published report assessing the mechanical properties of a repaired Achilles tendon after surgery using shear wave elastography (SWE). The aim of this study was to investigate the changes in mechanical properties of the healing Achilles tendon after surgical repair of a tendon rupture using ultrasound SWE and how these changes correlate with tendon function. MATERIAL AND METHODS Twenty-six patients who underwent surgical repair for Achilles tendon rupture were examined with ultrasound SWE coupled with a linear array transducer (4-15 MHz)...
2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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