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Tendon elastography

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https://www.readbyqxmd.com/read/28765991/ultrasound-elastography-in-tendon-pathology-state-of-the-art
#1
REVIEW
Romain Domenichini, Jean-Baptiste Pialat, Andrea Podda, Sébastien Aubry
Elastography assesses the biomechanical and structural properties of tissues by measuring their stiffness. Despite promising results, elastography has not yet earned its place in the daily practice of musculoskeletal radiologists. The purpose of this article is to present and examine the data available to date on ultrasound elastography of the tendons through a review of the literature to provide musculoskeletal radiologists with an overview that may help them better understand and use elastography routinely...
August 1, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28740756/sonographic-evaluation-of-the-immediate-effects-of-eccentric-heel-drop-exercise-on-achilles-tendon-and-gastrocnemius-muscle-stiffness-using-shear-wave-elastography
#2
Wilson K C Leung, K L Chu, Christopher Lai
BACKGROUND: Mechanical loading is crucial for muscle and tendon tissue remodeling. Eccentric heel drop exercise has been proven to be effective in the management of Achilles tendinopathy, yet its induced change in the mechanical property (i.e., stiffness) of the Achilles tendon (AT), medial and lateral gastrocnemius muscles (MG and LG) was unknown. Given that shear wave elastography has emerged as a powerful tool in assessing soft tissue stiffness with promising intra- and inter-operator reliability, the objective of this study was hence to characterize the stiffness of the AT, MG and LG in response to an acute bout of eccentric heel drop exercise...
2017: PeerJ
https://www.readbyqxmd.com/read/28731271/ultrasound-elastography-for-carpal-tunnel-pressure-measurement-a-cadaveric-validation-study
#3
Kazutoshi Kubo, Boran Zhou, Yu-Shiuan Cheng, Tai-Hua Yang, Bo Qiang, Kai-Nan An, Steven L Moran, Peter C Amadio, Xiaoming Zhang, Chunfeng Zhao
Carpal tunnel pressure is a key factor in the etiology of carpal tunnel syndrome. Numerous approaches have been conducted to measure carpal tunnel pressure. However, most techniques are invasive and take time and effort. We have developed an innovative approach to noninvasively assess the tunnel pressure by using the ultrasound surface wave elastography (USWE) technique. In a previous study it was shown that the shear wave speed in a tendon increased linearly with increasing tunnel pressure enclosed the tendon in a simple tendon model...
July 21, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28707752/analysis-of-the-correlation-between-knee-extension-torque-and-patellar-tendon-elastic-property
#4
P Mannarino, K M M Lima, C R C Fontenelle, T T Matta, B F de Salles, R Simão, L F Oliveira
PURPOSE: Quadriceps strength and patellar tendon (PT) are directly linked and intimately related to daily activities and lower limb function. However, the correlation between knee extension torque (KT) and PT Young's modulus (E) measured directly is still unknown. METHOD: We used supersonic shearwave imaging (SSI) to evaluate the elastic property of PT in healthy young men and analysed its correlation with KT. Twenty-two healthy young males were included and both knees were examined...
July 14, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28680900/semitendinosus-tendon-for-acl-reconstruction-regrowth-and-mechanical-property-recovery
#5
Stephen M Suydam, Daniel H Cortes, Michael J Axe, Lynn Snyder-Mackler, Thomas S Buchanan
BACKGROUND: Semitendinosus/gracilis (STG) tendon autograft has been used effectively for restoring knee stability after anterior cruciate ligament (ACL) rupture. Though ACL reconstruction with STG autograft is an effective surgical technique for return to sports, short-term hamstring strength asymmetries exist after surgery. Although imaging evidence has demonstrated regrowth and reorganization of the semitendinosus (ST) tendon, no studies show whether the regrowth is associated with residual muscle function...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28657192/effects-of-age-and-pathology-on-shear-wave-speed-of-the-human-rotator-cuff
#6
Timothy G Baumer, Jack Dischler, Leah Davis, Yassin Labyed, Daniel S Siegal, Marnix van Holsbeeck, Vasilios Moutzouros, Michael J Bey
Rotator cuff tears are common and often repaired surgically, but post-operative repair tissue healing, and shoulder function can be unpredictable. Tear chronicity is believed to influence clinical outcomes, but conventional clinical approaches for assessing tear chronicity are subjective. Shear wave elastography (SWE) is a promising technique for assessing soft tissue via estimates of shear wave speed (SWS), but this technique has not been used extensively on the rotator cuff. Specifically, the effects of age and pathology on rotator cuff SWS are not well known...
June 28, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28656513/real-time-ultrasound-elastography-of-the-achilles-tendon-in-patients-with-cerebral-palsy-is-there-a-correlation-between-strain-ratio-and-biomechanical-indicators
#7
Mehmet Öztürk, Bahattin Sayinbatur
PURPOSE: Our aim was to comparatively investigate the strain ratio and thickness of the Achilles tendon in children with cerebral palsy (CP), and to elucidate whether there is a correlation between biomechanical features of the Achilles tendon and strain ratio. METHODS: A total of 155 participants (72 CP patients and 83 healthy controls) who underwent real-time elastography of both Achilles tendons were studied. A linear transducer (4.8-11.0 MHz) was used to obtain the images...
June 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28607322/assessment-of-the-mechanical-properties-of-the-muscle-tendon-unit-by-supersonic-shear-wave-imaging-elastography-a-review
#8
Kelly Mônica Marinho E Lima, José Francisco Silva Costa Júnior, Wagner Coelho de Albuquerque Pereira, Liliam Fernandes de Oliveira
This review aimed to describe the state of the art in muscle-tendon unit (MTU) assessment by supersonic shear wave imaging (SSI) elastography in states of muscle contraction and stretching, during aging, and in response to injury and therapeutic interventions. A consensus exists that MTU elasticity increases during passive stretching or contraction, and decreases after static stretching, electrostimulation, massage, and dry needling. There is currently no agreement regarding changes in the MTU due to aging and injury...
April 15, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28509432/feasibility-assessment-of-shear-wave-elastography-to-lumbar-back-muscles-a-radioanatomic-study
#9
Maud Creze, Krystel Nyangoh Timoh, Olivier Gagey, Laurence Rocher, Marie-France Bellin, Marc Soubeyrand
Low back pain is often associated with tensional changes in the paraspinal muscles detected by palpatory procedures. Shear wave elastography (SWE), recently introduced, allows the stiffness of muscles to be assessed noninvasively. The aim of this work was to study the feasibility of using SWE on the three main lumbar back muscles (multifidus, longissimus, and iliocostalis) in vivo after analyzing their muscular architecture ex vivo. We determined the orientation of fibers in the multifidus, longissimus, and iliocotalis muscles in seven fresh cadavers using gross anatomy and B-Mode ultrasound imaging...
May 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28493799/shear-wave-elastography-basic-physics-and-musculoskeletal-applications
#10
Mihra S Taljanovic, Lana H Gimber, Giles W Becker, L Daniel Latt, Andrea S Klauser, David M Melville, Liang Gao, Russell S Witte
In the past 2 decades, sonoelastography has been progressively used as a tool to help evaluate soft-tissue elasticity and add to information obtained with conventional gray-scale and Doppler ultrasonographic techniques. Recently introduced on clinical scanners, shear-wave elastography (SWE) is considered to be more objective, quantitative, and reproducible than compression sonoelastography with increasing applications to the musculoskeletal system. SWE uses an acoustic radiation force pulse sequence to generate shear waves, which propagate perpendicular to the ultrasound beam, causing transient displacements...
May 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28465195/extensor-indicis-proprius-tendon-transfer-using-shear-wave-elastography
#11
J Lamouille, C Müller, S Aubry, S Bensamoun, W Raffoul, S Durand
The means for judging optimal tension during tendon transfers are approximate and not very quantifiable. The purpose of this study was to demonstrate the feasibility of quantitatively assessing muscular mechanical properties intraoperatively using ultrasound elastography (shear wave elastography [SWE]) during extensor indicis proprius (EIP) transfer. We report two cases of EIP transfer for post-traumatic rupture of the extensor pollicis longus muscle. Ultrasound acquisitions measured the elasticity modulus of the EIP muscle at different stages: rest, active extension, active extension against resistance, EIP section, distal passive traction of the tendon, after tendon transfer at rest and then during active extension...
March 7, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28418825/science-to-practice-quantitative-us-elastography-can-be-used-to-quantify-mechanical-and-histologic-tendon-healing-in-a-rabbit-model-of-achilles-tendon-transection
#12
Kenneth S Lee, Jack Martin, Darryl Thelen
Compression-based ultrasonographic (US) elastography is associated with time-dependent mechanical and histologic changes of the healing tendon in a transected rabbit model of the Achilles tendon. This finding will lead to continued development of quantitative US, which can be used to objectively assess a diseased or healing tendon. With advances in the method used, clinical translation of tendon elastography may enable clinicians to diagnose tendon damage and track healing, which should improve both treatment and outcome...
May 2017: Radiology
https://www.readbyqxmd.com/read/28378201/poor-reproducibility-of-compression-elastography-in-the-achilles-tendon-same-day-and-consecutive-day-measurements
#13
Catherine Payne, Nick Webborn, Peter Watt, Mara Cercignani
OBJECTIVE: To determine the reproducibility of compression elastography (CE) when measuring strain data, a measure of stiffness of the human Achilles tendon in vivo, over consecutive measures, consecutive days and when using different foot positions. MATERIALS AND METHODS: Eight participants (4 males, 4 females; mean age 25.5 ± 2.51 years, range 21-30 years; height 173.6 ± 11.7 cm, range 156-189 cm) had five consecutive CE measurements taken on one day and a further five CE measures taken, one per day, at the same time of day, every day for a consecutive 5-day period...
July 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28292005/current-status-of-musculoskeletal-application-of-shear-wave-elastography
#14
REVIEW
JeongAh Ryu, Woo Kyoung Jeong
Ultrasonography (US) is a very powerful diagnostic modality for the musculoskeletal system due to the ability to perform real-time dynamic high-resolution examinations with the Doppler technique. In addition to acquiring morphologic data, we can now obtain biomechanical information by quantifying the elasticity of the musculoskeletal structures with US elastography. The earlier diagnosis of degeneration and the ability to perform follow-up evaluations of healing and the effects of treatment are possible. US elastography enables a transition from US-based inspection to US-based palpation in order to diagnose the characteristics of tissue...
July 2017: Ultrasonography
https://www.readbyqxmd.com/read/28265768/changes-in-elbow-joint-s-musculo-articular-mechanical-properties-do-not-alter-reaching-related-action-perception-coupling
#15
Yannick Daviaux, Thibault Deschamps, Christophe Cornu
PURPOSE: Perception of action capabilities can be altered by changes in sensorimotor processes, as showed in previous works in populations dealing with regular and pathological sensorimotor deficits. Misestimating changes in performance ability could lead to risky behavior, injury, and/or reduced performance. However, the relationship between sensorimotor processes, the action-perception coupling, and the related anatomical structures is still a matter of debate. We investigated whether changes in the muscle-tendon system's mechanical properties experimentally induced by eccentric contractions could alter the action-perception coupling (APC) in a reaching-to-grasp task, in which the participants estimated the maximal distance they predicted that they would able to reach a glass...
April 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28150323/serial-changes-of-tendon-histomorphology-and-strain-elastography-after-induced-achilles-tendinopathy-in-rabbits-an-in-vivo-study
#16
Kyung-Sik Ahn, Nam Joon Lee, Chang Ho Kang, Young Hen Lee, Hae Jeong Jeon
OBJECTIVES: The purpose of this study was to investigate and compare the serial changes of morphology and strain in the early process of Achilles tendinopathy in a rabbit model. METHODS: A total of 10 New Zealand white rabbits underwent ligation of one of their Achilles tendons to induce ischemic injury. Both inflamed and contralateral Achilles tendons were serially evaluated with 3 follow-ups: the first on days 3 to 5, the second on days 9 to 13, and the third and last follow-up on days 15 to 20 after surgery...
February 2, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28145809/quantitative-us-elastography-can-be-used-to-quantify-mechanical-and-histologic-tendon-healing-in-a-rabbit-model-of-achilles-tendon-transection
#17
Yohei Yamamoto, Satoshi Yamaguchi, Takahisa Sasho, Taisuke Fukawa, Yorikazu Akatsu, Ryuichiro Akagi, Tadashi Yamaguchi, Kenji Takahashi, Kengo Nagashima, Kazuhisa Takahashi
Purpose To determine the time-dependent change in strain ratios (SRs) at the healing site of an Achilles tendon rupture in a rabbit model of tendon transection and to assess the correlation between SRs and the mechanical and histologic properties of the healing tissue. Materials and Methods Experimental methods were approved by the institutional animal care and use committee. The Achilles tendons of 24 New Zealand white rabbits (48 limbs) were surgically transected. The SRs of Achilles tendons were calculated by using compression-based quantitative ultrasonographic elastography measurements obtained 2, 4, 8, and 12 weeks after transection...
May 2017: Radiology
https://www.readbyqxmd.com/read/28110933/shear-wave-elastography-of-the-supraspinatus-muscle-and-tendon-repeatability-and-preliminary-findings
#18
Timothy G Baumer, Leah Davis, Jack Dischler, Daniel S Siegal, Marnix van Holsbeeck, Vasilios Moutzouros, Michael J Bey
Shear wave elastography (SWE) is a promising tool for estimating musculoskeletal tissue properties, but few studies have rigorously assessed its repeatability and sources of error. The objectives of this study were to assess: (1) the extent to which probe positioning error and human user error influence measurement accuracy, (2) intra-user, inter-user, and day-to-day repeatability, and (3) the extent to which active and passive conditions affect shear wave speed (SWS) repeatability. Probe positioning and human usage errors were assessed by acquiring SWE images from custom ultrasound phantoms...
February 28, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28108983/shear-wave-elastography-is-a-reliable-and-repeatable-method-for-measuring-the-elastic-modulus-of-the-rectus-femoris-muscle-and-patellar-tendon
#19
Serkan Taş, Mehmet Ruhi Onur, Seval Yılmaz, Abdullah Ruhi Soylu, Feza Korkusuz
OBJECTIVES: The purpose of this study was to determine intraobserver, interobserver, and inter-day reliability levels for stiffness measurements of the patellar tendon and rectus femoris muscle using shear wave elastography (SWE). METHODS: This study was conducted on 12 healthy male individuals. Two examiners measured mean shear wave velocity values of the patellar tendons and rectus femoris muscles of both extremities using a 9L4 (4-9 MHz) transducer and an Acuson S3000 ultrasound system (Siemens Medical Solutions, Mountain View, CA)...
January 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28003609/the-development-of-vibration-system-for-applying-magnetic-resonance-elastography-mre-to-the-supraspinatus-muscle
#20
Daiki Ito, Tomokazu Numano, Kazuyuki Mizuhara, Kouichi Takamoto, Takaaki Onishi, Hisao Nishijo
Palpation is a standard clinical tool to diagnose abnormal stiffness changes in soft tissues. However, it is difficult to palpate the supraspinatus muscle because it locates under the trapezius muscle. The magnetic resonance elastography (MRE) uses harmonic mechanical excitation to quantitatively measure the stiffness (shear modulus) of both the superficial and deep tissues. The purpose of this study was to build a vibration system for applying the MRE to the supraspinatus muscle. In this study, a power amplifier and a pneumatic pressure generator were used to supply vibrations to a vibration pad...
2016: Nihon Hoshasen Gijutsu Gakkai Zasshi
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