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Tissue doppler imaging

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https://www.readbyqxmd.com/read/28328938/tissue-factor-pathway-inhibitor-for-prediction-of-placenta-mediated-adverse-pregnancy-outcomes-in-high-risk-women-angiopred-study
#1
Aurélie Di Bartolomeo, Céline Chauleur, Jean-Christophe Gris, Céline Chapelle, Edouard Noblot, Silvy Laporte, Tiphaine Raia-Barjat
OBJECTIVE: The study aimed to evaluate if the rate of tissue factor pathway inhibitor during pregnancy and following delivery could be a predictive factor for placenta-mediated adverse pregnancy outcomes in high-risk women. METHODS: This was a prospective multicentre cohort study of 200 patients at a high risk of occurrence or recurrence of placenta-mediated adverse pregnancy outcomes conducted between June 2008 and October 2010. Measurements of tissue factor pathway inhibitor resistance (normalized ratio) and tissue factor pathway inhibitor activity were performed for the last 72 patients at 20, 24, 28, 32, and 36 weeks of gestation and during the postpartum period...
2017: PloS One
https://www.readbyqxmd.com/read/28319947/effects-of-capsaicin-on-older-patients-with-oropharyngeal-dysphagia-a-double-blind-placebo-controlled-crossover-study
#2
Rui Nakato, Noriaki Manabe, Sayako Shimizu, Kozo Hanayama, Akiko Shiotani, Jiro Hata, Ken Haruma
BACKGROUND/AIMS: The standard of care for older patients with oropharyngeal dysphagia (OD) is poor. Stimulation of transient receptor potential vanilloid 1 might become a pharmacological strategy for these patients. This study aimed to compare the therapeutic effect of film food containing 0.75 µg of capsaicin in these patients. METHODS: In a crossover, randomized trial, 49 patients with OD were provided capsaicin or identical placebo at least 7 days apart. Patients' reported symptoms during repeated swallowing, the volume, pH and substance P (SP) concentrations in saliva, and cervical esophageal wall motion evaluated by ultrasonographic tissue Doppler imaging were obtained before and after capsaicin or placebo administration...
March 21, 2017: Digestion
https://www.readbyqxmd.com/read/28319641/correlation-of-visually-evoked-functional-and-blood-flow-changes-in-the-rat-retina-measured-with-a-combined-oct-erg-system
#3
Bingyao Tan, Erik Mason, Benjamin MacLellan, Kostadinka K Bizheva
Purpose: To correlate visually evoked functional and blood flow changes in the rat retina measured simultaneously with a combined optical coherence tomography and electroretinography system (OCT+ERG). Methods: Male Brown Norway (n = 6) rats were dark adapted and anesthetized with ketamine/xylazine. Visually evoked changes in the retinal blood flow (RBF) and functional response were measured simultaneously with an OCT+ERG system with 3-μm axial resolution in retinal tissue and 47-kHz image acquisition rate...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28317170/added-clinical-value-of-applying-myocardial-deformation-imaging-to-assess-right-ventricular-function
#4
REVIEW
Vladislavs Sokalskis, Diletta Peluso, Annika Jagodzinski, Christoph Sinning
Right heart dysfunction has been found to be a strong prognostic factor predicting adverse outcome in various cardiopulmonary diseases. Conventional echocardiographic measurements can be limited by geometrical assumptions and impaired reproducibility. Speckle tracking-derived strain provides a robust quantification of right ventricular function. It explicitly evaluates myocardial deformation, as opposed to tissue Doppler-derived strain, which is computed from tissue velocity gradients. Right ventricular longitudinal strain provides a sensitive tool for detecting right ventricular dysfunction, even at subclinical levels...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28317072/sonographic-classification-of-testicular-tumors-by-tissue-harmonic-imaging-experience-of-58-cases
#5
Atsuo Kawamoto, Tadashi Hatano, Kazuhiro Saito, Rie Inoue, Toshitaka Nagao, Shigeru Sanada
PURPOSE: To evaluate the relationship between our proposed sonographic classification of testicular tumors by tissue harmonic imaging and histological type. METHODS: We retrospectively analyzed 58 testicular tumors and tumor-like lesions [seminomatous germ cell tumor (SGCT): 28; non-seminomatous germ cell tumor (NSGCT): 16; lymphoid and hematopoietic tumor (LHT): 7; Leydig cell tumor: 1; epidermal cyst: 2; and tumor of paratesticular structure (TPS): 4]. We divided a sonographic image into six types for morphological criteria and three types for color Doppler criteria...
March 20, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28315942/forgotten-right-ventricle-in-pediatric-dilated-cardiomyopathy
#6
Hala Mounir Agha, Hossam Ibrahim, Inas Abd El Satar, Naglae Abd El Rahman, Doaa Abd El Aziz, Zeinab Salah, Sonia El Saeidi, Fatma Mostafa, Wael Attia, Mohamed Abd El Rahman, Gaser Abd El Mohsen
To evaluate the right ventricular (RV) function in relation to that of the left ventricle (LV) in patients with dilated cardiomyopathy (DCM). Echocardiographic examination was done using tissue Doppler imaging (TDI) and two-dimensional speckle tracking echocardiography (2D-STE) for 32 pediatric patients with DCM comparing them to another 32 normal matched controls. The global longitudinal strain (GLS) derived from 2D-STE was used to reflect the LV systolic function. Tricuspid annular plan systolic excursion (TAPSE) and the following RV TDI derived indexes: peak systolic velocity (S'), peak early diastolic velocity E', peak late diastolic velocity A', isovolumic acceleration (IVA) and myocardial performance index (MPI) were measured...
March 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28315202/validation-of-bevacizumab-therapy-effect-on-colon-cancer-subtypes-by-using-whole-body-imaging-in-mice
#7
Ivan Vuletic, Kedi Zhou, Hui Li, Huichen Bai, Xiangxi Meng, Sihao Zhu, Yichen Ding, Jun Li, Hongfang Sun, Qiushi Ren
PURPOSE: Preclinical imaging offers a useful tool for monitoring cancer biological behavior and therapy in vivo without the necessity of animal surgery. The following paper describes our examination of tumor progress and anti-angiogenic therapy with Bevacizumab on colon cancer subtypes (SW480 and SW620) by using different non-invasive real-time in vivo imaging techniques. PROCEDURES: Color Doppler ultrasound imaging (CDUI) was used to observe the formation of new blood vessels; a homemade fluorescence reflectance imaging (FRI) apparatus was mainly used to test the difference in VEGFR2 expression between the tumor subtypes...
March 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28306671/noninvasive-monitoring-of-acute-and-chronic-rejection-in-heart-transplantation
#8
Maria G Crespo-Leiro, Gonzalo Barge-Caballero, David Couto-Mallon
PURPOSE OF REVIEW: Recent years have seen advances in the early detection of cardiac graft rejection. RECENT FINDINGS: We review the possibilities offered by tissue Doppler imaging and speckle tracking echocardiography, cardiac magnetic resonance, cardiac computed tomography, single positron emission tomography, gene expression profiling, and quantitation of donor-derived cell-free DNA, and microRNAs. SUMMARY: Noninvasive monitoring of acute and chronic rejection after cardiac transplantation is an unmet need and remains a challenge...
March 16, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28303997/right-ventricular-involvement-in-patients-with-inferior-myocardial-infarction-correlation-of-electrocardiographic-findings-with-echocardiography-data
#9
Sumbul Javed, Ali Raza Rajani, Pushparani Govindaswamy, Ghazi Ahmed Radaideh, Harb Ahmed Abubaraka, Tariq Ilyas Qureshi, Hassaan Bin Arshad
OBJECTIVE: To determine the right ventricular involvement in patients with inferior myocardial infarction by echocardiography in relation to electrocardiographic findings. METHODS: This observational, prospective study was conducted at Rashid Hospital, Dubai, the United Arab Emirates, from January to September 2013, and comprised patients with inferior myocardial infarction. All patients aged above 18 years were included. Right ventricular myocardial infarction was defined by the electrocardiographic criteria of > 1mV ST elevation in V4R-V5R leads...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28303297/acute-calcific-tendinopathy-of-the-popliteus-tendon-a-rare-case-diagnosed-using-a-multimodality-imaging-approach-and-treated-conservatively
#10
Cédric Doucet, Akshat Gotra, Santhosh Mauvva Venkatesh Reddy, Mathieu Boily
Acute calcific tendinopathy of the popliteus tendon is a rare medical entity associated with significant patient discomfort. We present the case of a previously healthy 48-year-old female who presented to the emergency department with acute onset of left knee pain. Initial radiographs revealed calcifications within the posterolateral compartment of the knee. Ultrasound imaging demonstrated a swollen and hypoechoic popliteus tendon with an increased color Doppler signal at the periphery of the tendon as well as calcification in the tendon and adjacent soft tissues...
March 16, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28298963/potential-role-of-imaging-in-assessing-harmful-effects-on-spermatogenesis-in-adult-testes-with-varicocele
#11
REVIEW
Athina C Tsili, Olga N Xiropotamou, Anastasios Sylakos, Vasilios Maliakas, Nikolaos Sofikitis, Maria I Argyropoulou
Varicocele is characterized by an abnormal dilatation and retrograde blood flow in the spermatic veins. Varicocele is the leading correctable cause of male infertility. Although it is highly prevalent in infertile men, it is also observed in individuals with normal fertility. Determining which men are negatively affected by varicocele would enable clinicians to better select those men who will benefit from treatment. To assess the functional status of the testes in men with varicocele, color Doppler sonographic parameters were evaluated...
February 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28298946/tissue-doppler-imaging-in-the-evaluation-of-abdominal-aortic-pulsatility-a-useful-tool-for-the-neonatologist
#12
Enrico Valerio, Alessandra Grison, Anna Capretta, Rosanna Golin, Paola Ferrarese, Massimo Bellettato
Sonographic cardiac evaluation of newborns with suspected aortic coarctation (AoC) should tend to demonstrate a good phasic and pulsatile flow and the absence of pressure gradient along a normally conformed aortic arch from the modified left parasternal and suprasternal echocardiographic views; these findings, however, may not necessarily rule out a more distal coarctation in the descending aorta. For this reason, the sonographic exam of newborns with suspected AoC should always include a Doppler evaluation of abdominal aortic blood flow from the subcostal view...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28293635/semiquantitative-evaluation-of-extrasynovial-soft-tissue-inflammation-in-the-shoulders-of-patients-with-polymyalgia-rheumatica-and-elderly-onset-rheumatoid-arthritis-by-power-doppler-ultrasound
#13
Takeshi Suzuki, Ryochi Yoshida, Akiko Okamoto, Yu Seri
Objectives. To develop a scoring system for evaluating the extrasynovial soft tissue inflammation of the shoulders in patients with polymyalgia rheumatica (PMR) and elderly-onset rheumatoid arthritis with PMR-like onset (pm-EORA) using ultrasound. Methods. We analyzed stored power Doppler (PD) images obtained by the pretreatment examination of 15 PMR patients and 15 pm-EORA patients. A semiquantitative scoring system for evaluating the severity of PD signals adjacent to the anterior aspect of the subscapularis tendon was designed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28292297/subclinical-left-ventricular-diastolic-dysfunction-and-incident-type-2-diabetes-risk-the-korean-genome-and-epidemiology-study
#14
Juri Park, Jin-Seok Kim, Seong Hwan Kim, Sunwon Kim, Sang Yup Lim, Hong-Euy Lim, Goo-Yeong Cho, Ki-Chul Sung, Jang-Young Kim, Inkyung Baik, Kwang Kon Koh, Jung Bok Lee, Seung Ku Lee, Chol Shin
BACKGROUND: Subclinical left ventricular (LV) diastolic dysfunction in type 2 diabetes (T2D) is a common finding and represents an early sign of diabetic cardiomyopathy. However, the relationship between LV diastolic dysfunction and the incident T2D has not been previously studied. METHODS: A total of 1817 non-diabetic participants (mean age, 54 years; 48% men) from the Korean Genome and Epidemiology Study who were free of cardiovascular disease were studied. LV structure and function were assessed by conventional echocardiography and tissue Doppler imaging...
March 14, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28290789/-the-evaluation-of-left-ventricular-diastolic-function-by-echocardiography-in-patients-with-preserved-ejection-fraction
#15
M N Alekhin, A M Grishin, O A Petrova
OBJECTIVE: to compare non-invasive evaluation of left ventricular (LV) diastolic function (DF) by echocardiography using algorithms of the 2009 and 2016 American Society of Echocardiography (ASE)/European Association of Echocardiography (EAE, now European Association of Cardiovascular Imaging [EACVI]) Recommendations. MATERIAL AND METHODS: The study included 100 patients with sinus rhythm and preserved left ventricular (LV) ejection fraction (EF). In all patients LV DF was assessed using both algorithms...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28290786/-predictors-of-heart-failure-with-preserved-ejection-fraction-in-patients-with-metabolic-syndrome-and-preclinical-diastolic-dysfunction
#16
K G Adamyan, L G Tunyan, A L Chilingaryan, L R Tumasyan
PURPOSE: to evaluate differences in echocardiographic parameters between patients with preclinical diastolic dysfunction (PDD) and heart failure with preserved ejection fraction (HFpEF) and to identify predictors of transition from PDD to HFpEF. MATERIAL AND METHODS: Echocardiographic parameters were recorded in 325 patients with PDD and 50 healthy subjects. PDD and HFpEF were diagnosed by tissue Doppler imaging of the left ventricle (LV) during exercise stress test and detection of symptoms of heart failure...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28289480/ultrasound-elastography-for-determination-of-the-age-of-venous-thrombi-evaluation-of-thrombus-evolution-in-patients-after-sclerotherapy
#17
Łukasz Paluch, Ewa Nawrocka-Laskus, Agnieszka Dąbrowska, Tadeusz Popiela, Jerzy Walecki
BACKGROUND: Venous thrombosis is a multicausal disease involving intravenous clot formation. It may occur spontaneously or after provoking events, such as traumatic injuries to the pelvis, upper and lower extermities, immobilization, intravascular procedures, including venous catheterization or injection. Color Doppler ultrasonography is a rapid and non-invasive technique for evaluation of venous disease. It is a very sensitive method for detection of thrombi, but has some limitations, e...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28288162/left-ventricular-long-axis-tissue-doppler-systolic-velocity-is-independently-related-to-heart-rate-and-body-size
#18
Roger E Peverill, Bon Chou, Lesley Donelan
BACKGROUND: The physiological factors which affect left ventricular (LV) long-axis function are not fully defined. We investigated the relationships of resting heart rate and body size with the peak velocities and amplitudes of LV systolic and early diastolic long axis motion, and also with long-axis contraction duration. METHODS: Two groups of adults free of cardiac disease underwent pulsed-wave tissue Doppler imaging at the septal and lateral mitral annular borders...
2017: PloS One
https://www.readbyqxmd.com/read/28286397/perforator-peroneal-artery-flap-for-tongue-reconstruction
#19
Shubhra Chauhan, Sachin Chavre, Naveen Hedne Chandrashekar, Naveen B S
INTRODUCTION: Reconstruction has evolved long way from primary closure to flaps. As time evolved, better understanding of vascularity of flap has led to the development of innovative reconstructive techniques. These flaps can be raised from various parts of the body for reconstruction and have shown least donor site morbidity. We use one such peroneal artery perforator flap for tongue reconstruction with advantage of thin pliable flap, minimal donor site morbidity and hidden scar. MATERIALS AND METHODS: Our patient 57yrs old lady underwent wide local excision with selective neck dissection...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28285896/perinatal-changes-in-fetal-ventricular-geometry-myocardial-performance-and-cardiac-function-in-normal-term-pregnancies
#20
Olga Patey, Michael A Gatzoulis, Basky Thilaganathan, Julene S Carvalho
BACKGROUND: The fetal heart at term is exposed to an increase in hemodynamic work as a consequence of fetal growth, increased circulating volume, and alteration in loading patterns due to maturational changes in fetoplacental circulation. The extent to which these cardiovascular changes influence human fetal and neonatal cardiac adaptation has not been fully elucidated. The aim of this study was to evaluate perinatal cardiovascular changes in ventricular geometry and myocardial performance in normal term fetuses...
March 9, 2017: Journal of the American Society of Echocardiography
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