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Ultrasound and muscle

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https://www.readbyqxmd.com/read/27933661/mutations-in-the-neb-gene-cause-fetal-akinesia-arthrogryposis-multiplex-congenita
#1
Michal Feingold-Zadok, David Chitayat, Karen Chong, Marie Injeyan, Patrick Shannon, Daphne Chapmann, Ron Maymon, Nir Pillar, Orit Reish
OBJECTIVE: We studied a series of patients with fetal akinesia deformation sequence (FADS)/arthrogryposis multiplex congenita (AMC), with nemaline bodies on muscle specimens, that revealed mutations in the NEB gene. METHOD: We pathologically assessed seven cases from three families, who presented with AMC/FADS. Targeted genetic analysis for Ashkenazi Jewish (AJ) mutation (in relevant patients) was followed by next generation sequencing and Multiplex Ligation-dependent Probe Amplification...
December 9, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27932205/cold-induced-sympathetic-tone-modifies-the-impact-of-endothelium-dependent-vasodilation-in-the-finger-pulp
#2
Tone Kristin Bergersen, Maria Skytioti, Maja Elstad
OBJECTIVE: In thermoneutral and cold subjects, the sympathetic nervous system regulates skin blood flow by adjusting frequency of the tonic vasoconstrictor impulses. However, the way these thermoregulatory impulses influence the vascular endothelium is not well known. We studied how the sympathetic nervous system influences endothelium-dependent vasodilation (EDV) caused by shear stress in skin containing arteriovenous anastomoses (AVAs) and arterioles in healthy subjects. METHODS: Thirteen healthy subjects were exposed to thermoneutral (29°C) and cold (22°C) ambient temperatures on separate days...
November 30, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27929389/diaphragm-dysfunction-diagnostic-approaches-and-management-strategies
#3
REVIEW
Bruno-Pierre Dubé, Martin Dres
The diaphragm is the main inspiratory muscle, and its dysfunction can lead to significant adverse clinical consequences. The aim of this review is to provide clinicians with an overview of the main causes of uni- and bi-lateral diaphragm dysfunction, explore the clinical and physiological consequences of the disease on lung function, exercise physiology and sleep and review the available diagnostic tools used in the evaluation of diaphragm function. A particular emphasis is placed on the clinical significance of diaphragm weakness in the intensive care unit setting and the use of ultrasound to evaluate diaphragmatic action...
December 5, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27928468/sonoelastography-in-the-musculoskeletal-system-current-role-and-future-directions
#4
REVIEW
Naomi Winn, Radhesh Lalam, Victor Cassar-Pullicino
Ultrasound is an essential modality within musculoskeletal imaging, with the recent addition of elastography. The elastic properties of tissues are different from the acoustic impedance used to create B mode imaging and the flow properties used within Doppler imaging, hence elastography provides a different form of tissue assessment. The current role of ultrasound elastography in the musculoskeletal system will be reviewed, in particular with reference to muscles, tendons, ligaments, joints and soft tissue tumours...
November 28, 2016: World Journal of Radiology
https://www.readbyqxmd.com/read/27928435/a-debate-about-ultrasound-and-anatomic-aspects-of-the-cervix-in-spontaneous-preterm-birth
#5
REVIEW
Bohîlțea Re, Munteanu O, Turcan N, Baros A, Bodean O, Voicu D, Cîrstoiu Mm
Preterm birth is the legal first global cause of neonatal death. The cervix has two roles: it has to stay closed to allow the fetus to undergo a normal development during gestation, and at term, the cervix has to dilate under the pressure of uterine contractions to allow the delivery. The purpose of this article is to establish if the ultrasound measured length of the cervix and its appearance are predictive for the spontaneous preterm birth. Cervical insufficiency can be described by painless cervical dilatation leading to pregnancy losses/ births, with no other risk factors present...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27928202/effects-of-short-term-carbohydrate-restrictive-and-conventional-hypoenergetic-diets-and-resistance-training-on-strength-gains-and-muscle-thickness
#6
Claudia M Meirelles, Paulo S C Gomes
: Hypoenergetic diets and resistance training (RT) have been suggested to be important components of weight loss strategy programs; however, there is little evidence as to the chronic effects of different macronutrient compositions on strength performance and muscle mass with RT. The purpose of this study was to compare the effects of carbohydrate restrictive (CRD) and conventional (CONV) diets combined with RT on strength performance and muscle thicknesses in overweight and obese participants already involved in RT programs...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27925702/quantitative-elastosonography-of-the-myotendinous-junction-normal-behavior-and-correlation-with-a-standard-measurement-system-during-functional-tests
#7
Paolo Minafra, Chandra Bortolotto, Ermanno Rampinini, Fabrizio Calliada, Giuseppe Monetti
OBJECTIVES: In recent years, an increasing need to use imaging to assess normal and adaptive muscle function, in addition to its anatomy and structure, has emerged. We evaluated the myotendinous junction's elastosonographic behavior in light of the most recent literature on its physiologic behavior. The elastosonographic studies were compared with the results obtained from a standard measurement system to ensure a correlation with maximal muscle contraction. METHODS: Nineteen male professional soccer players were assessed during functional tests...
November 30, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27924376/predicting-levator-avulsion-from-ics-pop-q-findings
#8
Alejandro Pattillo Garnham, Rodrigo Guzmán Rojas, Ka Lai Shek, Hans Peter Dietz
INTRODUCTION AND HYPOTHESIS: Levator avulsion is a common consequence of vaginal childbirth. It is associated with symptomatic female pelvic organ prolapse and is also a predictor of recurrence after surgical correction. Skills and hardware necessary for diagnosis by imaging are, however, not universally available. Diagnosis of avulsion may benefit from an elevated index of suspicion. The aim of this study was to examine the predictive value of the International Continence Society Pelvic Organ Prolapse Quantification (ICS POP-Q) for the diagnosis of levator avulsion by tomographic 4D translabial ultrasound...
December 6, 2016: International Urogynecology Journal
https://www.readbyqxmd.com/read/27922951/anatomic-and-ultrasonographic-evaluation-of-the-knee-sensory-innervation-a-cadaveric-study-to-determine-anatomic-targets-in-the-treatment-of-chronic-knee-pain
#9
Jorge M Orduña Valls, Ricardo Vallejo, Pablo López Pais, Eliezer Soto, Daniel Torres Rodríguez, David L Cedeño, Carlos Tornero Tornero, Maximino Quintáns Rodríguez, Aurora Baluja González, Julián Álvarez Escudero
BACKGROUND AND OBJECTIVES: Osteoarthrosis is a main cause of knee pain in the elderly. Pain associated with this condition is often refractory to conservative treatment. Total knee replacement may be the best option for severe pathologies; however, the occurrence of a chronic pain state after knee replacement has been well documented in the literature. The previous descriptions of the genicular nerves have been considered somewhat inaccurate. This innervation is complex and exhibits significant interindividual variability...
December 5, 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27922506/coding-in-muscle-disease
#10
Lyell K Jones, John P Ney
Accurate coding is critically important for clinical practice and research. Ongoing changes to diagnostic and billing codes require the clinician to stay abreast of coding updates. Payment for health care services, data sets for health services research, and reporting for medical quality improvement all require accurate administrative coding. This article provides an overview of administrative coding for patients with muscle disease and includes a case-based review of diagnostic and Evaluation and Management (E/M) coding principles in patients with myopathy...
December 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27922493/the-role-of-electrodiagnostic-testing-imaging-and-muscle-biopsy-in-the-investigation-of-muscle-disease
#11
Laura K Rosow, Anthony A Amato
PURPOSE OF REVIEW: This article reviews the roles of electrodiagnostic testing, imaging studies (MRI and ultrasound), and muscle biopsy in evaluating patients for possible muscle diseases. RECENT FINDINGS: In addition to electrodiagnostic testing and muscle biopsy, muscle imaging is increasingly being used in the evaluation of patients with suspected muscle disease. MRI and ultrasound can help identify patterns of muscle involvement that may narrow the differential diagnosis and guide further testing...
December 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27920855/aggressive-angiomyxoma-case-report-and-review-of-the-literature
#12
John C Benson, Scott Gilles, Tina Sanghvi, James Boyum, Eric Niendorf
A 47-year-old female presented to clinic with a 5-year history of a left buttock mass. The patient's hemoglobin was low (9.7 g/dL); laboratory analysis was otherwise unremarkable. Ultrasound of the left gluteal region demonstrated a heterogeneous vascular solid lesion. Magnetic resonance and computed tomography imaging showed an enhancing mass extending from the left ischioanal fossa through the levator ani muscle into the pelvis. Biopsy revealed bland-appearing spindle-shaped cells positive for estrogen and progesterone receptors, consistent with an aggressive angiomyxoma...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920658/isolated-bilateral-gastrocnemius-myositis-in-crohn-disease-successfully-treated-with-adalimumab
#13
Salvatore Vadala di Prampero, Marco Marino, Francesco Toso, Claudio Avellini, Vu Nguyen, Dario Sorrentino
Extraintestinal manifestations are common in inflammatory bowel disease; however, muscular involvement in Crohn disease is rarely reported. We present a case of a 26-year-old male with ileocolonic Crohn disease who developed sudden tenderness in both calves. Doppler ultrasound was negative for deep vein thrombosis. Magnetic resonance imaging of the gastrocnemius muscle showed high intensity signal in the muscle fibers, and muscle biopsy demonstrated nonspecific lymphocytic myositis. Other relevant laboratory results included normal antineutrophil cytoplasmic antibodies and creatine kinase as well as elevated C-reactive protein, erythrocyte sedimentation rate, and anti-Saccharomyces cerevisiae IgG titer...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27919609/randomised-controlled-trial-potential-benefit-of-a-footplate-neuromuscular-electrical-stimulation-device-in-patients-with-chronic-venous-disease
#14
R Ravikumar, K J Williams, A Babber, T R A Lane, H M Moore, A H Davies
OBJECTIVES: Chronic venous disease (CVD) is common, affecting a quarter of the population. Current conservative methods of treatment aim to prevent progression of disease by reducing ambulatory venous pressure. Neuromuscular electrical stimulation (NMES) refers to the use of electrical impulses to elicit muscle contraction. This pilot randomised controlled trial investigates the effect of a footplate NMES device (REVITIVE) on venous flow parameters, limb oedema, and quality of life outcome measures in patients with CVD...
December 2, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27919416/a-3d-model-of-the-achilles-tendon-to-determine-the-mechanisms-underlying-nonuniform-tendon-displacements
#15
Geoffrey G Handsfield, Joshua M Inouye, Laura C Slane, Darryl G Thelen, G Wilson Miller, Silvia S Blemker
The Achilles is the thickest tendon in the body and is the primary elastic energy-storing component during running. The form and function of the human Achilles is complex: twisted structure, intratendinous interactions, and differential motor control from the triceps surae muscles make Achilles behavior difficult to intuit. Recent in vivo imaging of the Achilles has revealed nonuniform displacement patterns that are not fully understood and may result from complex architecture and musculotendon interactions...
November 28, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27914201/shear-wave-ultrasound-elastographic-evaluation-of-the-rotator-cuff-tendon
#16
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/27913925/changes-in-stiffness-of-the-dorsal-scapular-muscles-before-and-after-computer-work-a-comparison-between-individuals-with-and-without-neck-and-shoulder-complaints
#17
Hiroaki Ishikawa, Takayuki Muraki, Shuhei Morise, Yusuke Sekiguchi, Nobuyuki Yamamoto, Eiji Itoi, Shin-Ichi Izumi
PURPOSE: The aim of this study was to compare the stiffness of the dorsal scapular muscles before and after computer work between individuals with and without neck and shoulder complaints. METHODS: Thirty subjects were divided into patient (n = 18) and control (n = 12) groups. The stiffness of the upper trapezius, levator scapulae, and rhomboid major was measured using ultrasound elastography before and after a 30-min typing task. The strain ratio of the muscle to an acoustic coupler was calculated (a lower strain ratio value indicates greater muscle stiffness)...
December 2, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27913343/a-frequency-shift-method-to-measure-shear-wave-attenuation-in-soft-tissues
#18
Simon Bernard, Siavash Kazemirad, Guy Cloutier
In vivo quantification of shear wave attenuation in soft tissues may help to better understand human tissue rheology and lead to new diagnostic strategies. Attenuation is difficult to measure in acoustic radiation force elastography because the shear wave amplitude decreases due to a combination of diffraction and viscous attenuation. Diffraction correction requires assuming a cylindrical wavefront and an isotropic propagation medium, which may not be the case in some applications. In this study, the frequency shift method, used in ultrasound imaging and seismology, was adapted for shear wave attenuation measurement in elastography...
December 1, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27913330/ex-vivo-hifu-experiments-using-a-32-times-32-element-cmut-array
#19
Hyo-Seon Yoon, Chienliu Chang, Ji Hoon Jang, Anshuman Bhuyan, Jung Woo Choe, Amin Nikoozadeh, Ronald D Watkins, Douglas N Stephens, Kim Butts Pauly, Butrus T Khuri-Yakub
High-intensity focused ultrasound (HIFU) has been used as noninvasive treatment for various diseases. For these therapeutic applications, capacitive micromachined ultrasonic transducers (CMUTs) have advantages that make them potentially preferred transducers over traditional piezoelectric transducers. In this paper, we present the design and the fabrication process of an 8 ×8 -mm (2) 32 ×32 -element 2-D CMUT array for HIFU applications. To reduce the system complexity for addressing the 1024 transducer elements, we propose to group the CMUT array elements into eight HIFU channels based on the phase delay from the CMUT element to the targeted focal point...
December 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27910812/inflammatory-markers-associated-with-abdominal-aortic-aneurysm
#20
Sarah Lindberg, Moncef Zarrouk, Jan Holst, Anders Gottsäter
PURPOSE: Inflammation with leukocytic infiltration, degradation of extracellular matrix (ECM), and depletion of vascular smooth muscle cells (VSMC) are pathological hallmarks of abdominal aortic aneurysm (AAA). The aim of this study was to further evaluate relationships between AAA and inflammatory biomarkers, interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α), endothelin-1 (ET-1) and soluble urokinase-type plasminogen activator receptor (suPAR), by comparing levels in 65-year-old men with and without AAA at ultrasound screening...
September 1, 2016: European Cytokine Network
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