keyword
MENU ▼
Read by QxMD icon Read
search

ultrasound elastography

keyword
https://www.readbyqxmd.com/read/29238251/the-acute-effects-of-static-and-cyclic-stretching-on-muscle-stiffness-and-hardness-of-medial-gastrocnemius-muscle
#1
Noriaki Maeda, Yukio Urabe, Shogo Tsutsumi, Shogo Sakai, Hironori Fujishita, Toshiki Kobayashi, Makoto Asaeda, Kazuhiko Hirata, Yukio Mikami, Hiroaki Kimura
This study aimed to clarify the acute effects of static stretching (SS) and cyclic stretching (CS) on muscle stiffness and hardness of the medial gastrocnemius muscle (MG) by using ultrasonography, range of motion (ROM) of the ankle joint and ankle plantar flexor. Twenty healthy men participated in this study. Participants were randomly assigned to SS, CS and control conditions. Each session consisted of a standard 5-minute cycle warm-up, accompanied by one of the subsequent conditions in another day: (a) 2 minutes static stretching, (b) 2 minutes cyclic stretching, (c) control...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29228030/logistic-regression-analysis-of-conventional-ultrasonography-strain-elastosonography-and-contrast-enhanced-ultrasound-characteristics-for-the-differentiation-of-benign-and-malignant-thyroid-nodules
#2
Tiantian Pang, Leidan Huang, Yingyuan Deng, Tianfu Wang, Siping Chen, Xuehao Gong, Weixiang Liu
The aim of the study is to screen the significant sonographic features by logistic regression analysis and fit a model to diagnose thyroid nodules. A total of 525 pathological thyroid nodules were retrospectively analyzed. All the nodules underwent conventional ultrasonography (US), strain elastosonography (SE), and contrast -enhanced ultrasound (CEUS). Those nodules' 12 suspicious sonographic features were used to assess thyroid nodules. The significant features of diagnosing thyroid nodules were picked out by logistic regression analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29226273/strain-elastography-how-to-do-it
#3
REVIEW
Christoph F Dietrich, Richard G Barr, André Farrokh, Manjiri Dighe, Michael Hocke, Christian Jenssen, Yi Dong, Adrian Saftoiu, Roald Flesland Havre
Tissue stiffness assessed by palpation for diagnosing pathology has been used for thousands of years. Ultrasound elastography has been developed more recently to display similar information on tissue stiffness as an image. There are two main types of ultrasound elastography, strain and shear wave. Strain elastography is a qualitative technique and provides information on the relative stiffness between one tissue and another. Shear wave elastography is a quantitative method and provides an estimated value of the tissue stiffness that can be expressed in either the shear wave speed through the tissues in meters/second, or converted to the Young's modulus making some assumptions and expressed in kPa...
September 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/29223692/recent-technological-advancements-in-cardiac-ultrasound-imaging
#4
REVIEW
Jaydev K Dave, Maureen E Mc Donald, Praveen Mehrotra, Andrew R Kohut, John R Eisenbrey, Flemming Forsberg
About 92.1 million Americans suffer from at least one type of cardiovascular disease. Worldwide, cardiovascular diseases are the number one cause of death (about 31% of all global deaths). Recent technological advancements in cardiac ultrasound imaging are expected to aid in the clinical diagnosis of many cardiovascular diseases. This article provides an overview of such recent technological advancements, specifically focusing on tissue Doppler imaging, strain imaging, contrast echocardiography, 3D echocardiography, point-of-care echocardiography, 3D volumetric flow assessments, and elastography...
November 23, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29223365/performance-of-spleen-stiffness-measurement-in-prediction-of-clinical-significant-portal-hypertension-a-meta-analysis
#5
Jinzhen Song, Jianbo Huang, He Huang, Shiyu Liu, Yan Luo
AIM: Our purpose was to evaluate the correlation between spleen stiffness (SS) measured by ultrasound-based elastography and hepatic venous pressure gradient (HVPG) and assess the accuracy of SS in detecting clinical significant portal hypertension (CSPH) and severe portal hypertension. METHOD: Nine studies were included from thorough literature research and selection processes. A random model was used to analyze the correlation between HVPG and SS. We adopted the bivariate mixed effects model to assess the diagnostic performance...
December 6, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29197914/testicular-volume-and-elasticity-changes-in-young-children-with-undescended-testes
#6
Hyun Joo Shin, Yong Seung Lee, Haesung Yoon, Myung-Joon Kim, Sang Won Han, Ha Yan Kim, Jinae Lee, Mi-Jung Lee
AIMS: To evaluate the differences and changes of testicular volume and elasticity in normal (NL) testes and undescended testes (UDTs) of children using shear wave elastography (SWE). MATERIALS AND METHODS: Testicular ultrasound images from children younger than 60 months old were retrospectively reviewed. Testicular volumes and elasticities were compared between the UDT group and NL group. In patients with unilateral UDT (uUDT), we also compared the values between uUDT and contralateral grossly normal (CGN) testis groups...
November 29, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/29197912/point-shear-wave-elastography-pswe-using-acoustic-radiation-force-impulse-arfi-imaging-a-feasibility-study-and-norm-values-for-renal-parenchymal-stiffness-in-healthy-children-and-adolescents
#7
Lilian Grass, Nora Szekely, Abdulsattar Alrajab, Thi Thanh Tam Bui-Ta, Georg Friedrich Hoffmann, Elke Wühl, Jens-Peter Schenk
AIMS: To evaluate the applicability of point shear wave elastography (pSWE) for measuring renal parenchymal stiffness in healthy children and adolescents and to establish norm values for shear wave speed (SWS) using two ARFI methods and ultrasound probes. MATERIAL AND METHODS: We prospectively investigated 264 children (43.9% males). pSWE (Virtual TouchTM Quantification and Virtual TouchTM Imaging Quantification (VTQ and VTIQ; Siemens, Germany)) was performed in the renal cortex of 528 healthy kidneys using a 1-6 MHz convex and a 4-9 MHz linear ultrasound probe in ventrolateral and dorsal examinations...
November 29, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/29197911/intra-and-inter-observer-variation-and-accuracy-using-different-shear-wave-elastography-methods-to-assess-circumscribed-objects-a-phantom-study
#8
Gregor Seliger, Katharina Chaoui, Christian Kunze, Yasmina Dridi, Klaus-Vitold Jenderka, Andreas Wienke, Michael Tchirikov
AIMS: The elastic properties of circumscribed tissues (e.g., tendons, lymph nodes, prostates, brain tumors) are of considerable clinical interest. The purpose of this study was thus to compare the Intra-/Inter-observer variation and accuracy in vitro of point shear wave elastography (pSWE) with that of 2D-SWE and to assess 2D-SWE's precision with variable ROI (vROI) incircumscribed objects. MATERIAL AND METHODS: Round targets (Elasticity QA Phantom Model 049) were examined for varying degrees of stiffness (8, 14, 45, and 80 kPa) and diameters (20/10 mm)...
November 29, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/29195757/bowel-sonoelastography-in-patients-with-crohn-s-disease-a-systematic-review
#9
REVIEW
Lorenzo Carlo Pescatori, Giovanni Mauri, Edoardo Savarino, Luca Pastorelli, Maurizio Vecchi, Luca Maria Sconfienza
Sonoelastography is an ultrasound-based method for evaluating the biological properties of a target tissue. It is commonly used in the diagnosis of liver and thyroid disease, but recently its use for monitoring the characteristics of bowel wall in patients affected by Crohn's disease (CD) has been proposed. Our aim was a systematic review of the use of sonoelastography in patients with CD. An initial database search retrieved 32 possible articles. On initial screening, 7 articles, concerning a total of 129 patients and 154 lesions of the small and large bowel, were finally included in the review...
November 28, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29195756/an-ultrasound-surface-wave-technique-for-assessing-skin-and-lung-diseases
#10
Xiaoming Zhang, Boran Zhou, Sanjay Kalra, Brian Bartholmai, James Greenleaf, Thomas Osborn
Systemic sclerosis (SSc) is a multi-organ connective tissue disease characterized by immune dysregulation and organ fibrosis. Severe organ involvement, especially of the skin and lung, is the cause of morbidity and mortality in SSc. Interstitial lung disease (ILD) includes multiple lung disorders in which the lung tissue is fibrotic and stiffened. The purpose of this study was to translate ultrasound surface wave elastography (USWE) for assessing patients with SSc and/or ILD via measuring surface wave speeds of both skin and superficial lung tissue...
November 28, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29194972/a-composite-noninvasive-index-correlates-with-liver-fibrosis-scores-in-post-fontan-patients-preliminary-findings
#11
William N Evans, Ruben J Acherman, Michael L Ciccolo, Sergio A Carrillo, Alvaro Galindo, Abraham Rothman, Gary A Mayman, Elizabeth A Adams, Leigh C Reardon, Brody J Winn, Noel S Yumiaco, Lesley Shimuizu, Yoko Inanaga, Rowena J Deleon, Humberto Restrepo
OBJECTIVE: We hypothesized that clinic-based, hepatic-ultrasound, elastography measurements, either alone or in combination with other noninvasive variables, might correlate with liver-biopsy fibrosis scores in patients post-Fontan. METHODS: Between March 2012 and February 2017, we identified patients post-Fontan that underwent elective cardiac catheterization and simultaneous transvenous hepatic biopsy. From this group, we selected patients that met inclusion criteria for liver-ultrasound, shear-wave elastography...
December 1, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29194232/diverse-correlations-between-fibrosis-related-factors-and-liver-stiffness-measurement-by-transient-elastography-in-chronic-hepatitis-b
#12
Ziyu Lin, Jing Liang, Jianyun Zhu, Chaoxia Hu, Yurong Gu, Jing Lai, Yubao Zheng, Zhiliang Gao
BACKGROUND: Several fibrosis-related factors influence liver stiffness measurements (LSM); however, these changes have not been investigated in the context of the various disease stages of chronic hepatitis B (CHB). AIM: The aim of this study was to assess the correlations between fibrosis-related factors and LSM in different disease stages of CHB. PATIENTS AND METHODS: Patients with mild CHB (n=305) and cirrhotic hepatitis B (cirrhotic HB) (n=137) were compared with determine the relationship between LSM and fibrosis-related factors including parameters of liver inflammation [aminotransferase (ALT), aspartate transaminase (AST), total bilirubin (Tbil)], albumin, globulin, peripheral blood cells (neutrophil granulocytes, red blood cells, platelets), abdominal ultrasound B-scan parameters including right liver thickness, portal vein inradium, diameter of spleen (DS), thickness of spleen (TS), and splenic vein inradium (SV)...
November 29, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29193329/a-few-considerations-on-achilles-and-patellar-tendinopathy-display-opposite-changes-in-elastic-properties
#13
Chueh-Hung Wu
I read with great interest the article by Coombes and colleagues1 , who utilized shear wave ultrasound elastography to measure shear wave velocity (SWV) of the patellar and Achilles tendons in those with patellar and Achilles tendinopathy. This article is protected by copyright. All rights reserved.
November 28, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29190853/contributions-of-hamstring-stiffness-to-straight-leg-raise-and-sit-and-reach-test-scores
#14
Naokazu Miyamoto, Kosuke Hirata, Noriko Kimura, Eri Miyamoto-Mikami
The passive straight-leg-raise (PSLR) and the sit-and-reach (SR) tests have been widely used to assess hamstring extensibility. However, it remains unclear to what extent hamstring stiffness (a measure of material properties) contributes to PSLR and SR test scores. Therefore, we aimed to clarify the relationship between hamstring stiffness and PSLR and SR scores using ultrasound shear wave elastography. Ninety-eight healthy subjects completed the study. Each subject completed PSLR testing, and classic and modified SR testing of the right leg...
November 30, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29187317/establishing-ultrasound-based-transient-elastography-cutoffs-for-different-stages-of-hepatic-fibrosis-and-cirrhosis-in-egyptian-chronic-hepatitis-c-patients
#15
Aisha Elsharkawy, Mohamed Alboraie, Rabab Fouad, Noha Asem, Mahmoud Abdo, Hesham Elmakhzangy, Mai Mehrez, Hany Khattab, Gamal Esmat
BACKGROUND AND STUDY AIM: Transient elastography is widely used to assess fibrosis stage in chronic hepatitis C (CHC). We aimed to establish and validate different transient elastography cut-off values for significant fibrosis and cirrhosis in CHC genotype 4 patients. PATIENTS AND METHODS: The data of 100 treatment-naive CHC patients (training set) and 652 patients (validation set) were analysed. The patients were subjected to routine pretreatment laboratory investigations, liver biopsy and histopathological staging of hepatic fibrosis according to the METAVIR scoring system...
November 27, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29179511/the-role-of-endobronchial-ultrasound-elastography-in-the-diagnosis-of-mediastinal-and-hilar-lymph-nodes
#16
Ye Gu, Hong Shi, Chunxia Su, Xiaoxia Chen, Shijia Zhang, Wei Li, Fengying Wu, Guanghui Gao, Hao Wang, Haiqing Chu, Caicun Zhou, Fei Zhou, Shengxiang Ren
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has been widely used for diagnosis and mediastinal lymph nodes staging in patients with suspicious lung cancer. Ultrasound elastography is a novel sonographical technique that can evaluate tissue compressibility. The aim of the present study was to investigate the diagnostic yield of elastography for differentiating malignant and benign mediastinal lymph nodes. Conventional EBUS B-mode features, including size, shape, border distinction, echogenicity, central hilar structure with central blood vessel and coagulation necrosis were also evaluated...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29177930/value-of-in-vitro-acoustic-radiation-force-impulse-application-on-uterine-adenomyosis
#17
Tevfik Berk Bildaci, Halime Cevik, Birnur Yilmaz, Guldeniz Aksan Desteli
PURPOSE: Adenomyosis is the presence of endometrial glandular and stromal tissue in the myometrium. This phenomenon can be the cause of excessive bleeding and menstrual pain in premenopausal women. Diagnosis of adenomyosis may present difficulty with conventional methods such as ultrasound and magnetic resonance imaging. Frequently, diagnosis is accomplished retrospectively based on the hysterectomy specimen. MATERIALS AND METHODS: This is a prospective case control study done in vitro on 90 patients' hysterectomy specimens...
November 24, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29177634/endoscopic-ultrasound-eus-elastography-and-contrast-enhanced-eus-in-groove-pancreatitis
#18
Surinder Singh Rana, Ravi Sharma, Sonali Guleria, Rajesh Gupta
We report for the first time the findings on endoscopic ultrasound elastrography and contrast enhanced EUS in a patient with groove pancreatitis.
November 27, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29175615/characterization-of-tissue-stiffness-of-the-infraspinatus-erector-spinae-and-gastrocnemius-muscle-using-ultrasound-shear-wave-elastography-and-superficial-mechanical-deformation
#19
Joseph P Kelly, Shane L Koppenhaver, Lori A Michener, Laurel Proulx, Francis Bisagni, Joshua A Cleland
The aim of this study was to compare measurement methods of tissue stiffness using ultrasound shear wave elastography (SWE) and superficial mechanical deformation (MyotonPRO) in the infraspinatus, erector spinae, and gastrocnemius muscles. Thirty healthy volunteers were assessed during rest, 40% and 80% maximum voluntary isometric contraction (MVIC). Correlation of the two methods in the three muscle regions was significant (r = 0.23-0.71, p < .05), and strongest in the gastrocnemius. MyotonPRO reliability was excellent (ICC > 0...
November 11, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29175268/peripheral-vascular-atherosclerosis-in-a-novel-pcsk9-gain-of-function-mutant-ossabaw-miniature-pig-model
#20
Ahmad F Hedayat, Kyoung-Ha Park, Taek-Geun Kwon, John R Woollard, Kai Jiang, Daniel F Carlson, Amir Lerman, Lilach O Lerman
Hypercholesterolemia is a major risk factor for atherosclerosis. Remaining challenges in the management of atherosclerosis necessitate development of animal models that mimic human pathophysiology. We characterized a novel mutant pig model with DNA transposition of D374Y gain-of-function (GOF) cDNA of chimp proprotein convertase subtilisin/kexin type-9 (PCSK9), and tested the hypothesis that it would develop peripheral vascular remodeling and target organ injury in the kidney. Wild-type or PCSK9-GOF Ossabaw miniature pigs fed a standard or atherogenic diet (AD) (n = 7 each) were studied in vivo after 3 and 6 months of diet...
November 3, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
keyword
keyword
73180
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"