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Ultrasound Or Sonography

Julie De Geyter, Isabel Filges, Sevgi Tercanli
No abstract text is available yet for this article.
December 2018: Ultraschall in der Medizin
Diesa Oliveira Pinheiro, Bruna Boff Varisco, Marcelo Brandão da Silva, Rafaela Silva Duarte, Graciele Dequi Deliberali, Carlos Roberto Maia, Mirela Foresti Jiménez, Patrícia El Beitune
OBJECTIVE:  To evaluate the accuracy of the diagnosis of fetal heart diseases obtained through ultrasound examinations performed during the prenatal period compared with the postnatal evaluation. METHODS:  A retrospective cohort study with 96 pregnant women who were attended at the Echocardiography Service and whose deliveries occurred at the Complexo Hospitalar Santa Casa de Porto Alegre, in the state of Rio Grande do Sul, Brazil. Risk factor assessment plus sensitivity and specificity analysis were used, comparing the accuracy of the screening for congenital heart disease by means of obstetrical ultrasound and morphological evaluation and fetal echocardiography, considering p  < 0...
December 14, 2018: Revista Brasileira de Ginecologia e Obstetrícia
Songita A Choudhury, Feng Xie, Shelby Kutty, John Lof, Elizabeth Stolze, Thomas R Porter
BACKGROUND: Microbubbles (MB) can be compressed to nanometer-sized droplets and reactivated with diagnostic ultrasound; these reactivated MB possess unique imaging characteristics. OBJECTIVE: We hypothesized that droplets formed from compressing Definity MB may be used for infarct-enhancement imaging. METHODS: Fourteen rats underwent ligation of their left anterior descending (LAD) artery, and five pigs underwent 90 minute balloon occlusions of their mid LAD...
2018: PloS One
Alissa L Wall Kleinhenz, Jing Gao, Arzu Kovanlikaya, Daniel Rosenbaum, Daniela I Guisado, Jonathan M Rubin
INTRODUCTION: Childhood pneumonia is a major cause of death in the 3rd world, and undernourishment increases the severity of the condition. We considered axillary thickness as a simple measurement to evaluate nutritional status that can be performed simultaneously with lung ultrasound. Our goal was to determine the distribution of axillary thickness in a cohort of children to determine a threshold for malnutrition. METHODS: Clinical databases were scanned to identify chest computed tomograms (CT) in children between the ages of 0 and 5 years with non-debilitating disease...
December 1, 2018: Clinical Imaging
Li Deng, Yufeng Zhang, Zhengpeng Zhao, Kexin Zhang, Xiao Hu, Lian Gao, Hong Liang, Junhua Zhang
An ultrasound simulation model incorporating incident and reflected wave propagations is proposed to provide a realistic data source for validation of transit time (TT)-based local pulse wave velocity (PWV) estimation algorithms. First, the incident wave (IW) and reflected wave (RW) at a certain position over a common carotid artery (CCA) are estimated. Then, the propagating pulse waves (PWs) along the CCA are modelled with the synthesizations of the estimated IWs and RWs, whose occurrences are delayed in opposite sequences according to a preset PWV...
November 13, 2018: Computers in Biology and Medicine
Elaine S Chan, Julie Lauzon, Lothar Resch, Bob Argiropoulos, Laura Schmitt, Rati Chadha
Alpha thalassemia major is a hemoglobinopathy caused by the inactivation or deletion of all 4 α-globin alleles. We describe a case of α-thalassemia major with atypical ultrasound and neuropathological findings. The mother had her first prenatal visit at 27 4/7 gestational weeks. Ultrasound revealed a hydropic fetus with multiple anomalies. However, the middle cerebral artery peak systolic velocity (MCA-PSV) suggested that the likelihood of fetal anemia was low. Given the poor prognosis of hydrops fetalis, the parents opted for the termination of pregnancy...
December 14, 2018: Pediatric and Developmental Pathology
Nuttawut Sermsathanasawadi, Wacharaphong Pitaksantayothin, Nattawut Puangpunngam, Khamin Chinsakchai, Chumpol Wongwanit, Pramook Mutirangura, Chanean Ruangsetakit
BACKGROUND: Endovenous heat-induced thrombosis (EHIT) is a thrombus that extends from an ablated saphenous vein into the common femoral vein after endovenous radiofrequency ablation (RFA). OBJECTIVE: To investigate the incidence, progression, treatment, and risk factors associated with EHIT-2 or greater after RFA. MATERIALS AND METHODS: This retrospective study included patients diagnosed with symptomatic superficial venous incompetence that were treated by RFA of the great saphenous vein or anterior accessory saphenous vein during the July 2012 to December 2016 study period...
December 13, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
(no author information available yet)
No abstract text is available yet for this article.
January 2019: Anesthesia and Analgesia
McKenzie M Hollon, Raphael Gershon, Adam D'Souza, Abimbola Faloye
We present a case of a 41-year-old man who suffered cardiac arrest after induction of general anesthesia for an ambulatory ophthalmologic procedure. In this report, we highlight the use of focused transthoracic echocardiography by the anesthesia team to guide a prolonged resuscitation. Emergency room and critical care physicians have described the use of focused echocardiography to aid in diagnosing correctible causes of cardiac arrest, predicting outcomes, and in decision making regarding termination of resuscitation...
December 13, 2018: A&A practice
J F Liu, Y X Chen, Y J Zheng, D H Wen, Y C Wang, G Xue
Objective: To evaluate the diagnostic value of the ATA (2015) ultrasound model, shear wave elastography (SWE), and ATA (2015)+SWE combinative modality for the diagnostic efficiency in thyroid nodules with Bethesda Classification Ⅲ indeterminate cytology, determine the diagnostic value of ultrasonography in Bethesda Classification Ⅲ indeterminate cytology. Method: 216 thyroid nodules that were initially diagnosed as AUS/FLUS by fine needle aspiration (FNA) were included in this study. The clinical data and two-dimensional ultrasonographic features were compared between the benign and malignant nodules...
September 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
F Y Liang, P Han, Q Cai, R H Chen, S T Yu, M R Luo, X M Huang
Objective: To evaluate the feasibility, effectiveness and safety of robot-assisted transaxillary thyroidectomy (RATT). Method: The clinical data of 66 patients undergoing RATT from November 2016 to May 2018 were prospectively collected and analyzed. The average age was (38.61±11.72) years, 57 cases were female and 9 cases were male. Preoperative fine needle aspiration biopsy revealed papillary thyroid carcinoma in 58 cases and follicular thyroid tumor in 8 cases. Result: All the patients successfully completed RATT, and there was no open operation, in which 54 cases of ipsilateral lobetomy and isthmus resection and ipsilateral central lymph node dissection, 8 cases with ipsilateral lobectomy and contralateral near-total lobectomy, and total thyroidectomy with ipsilateral central lymph node dissection and selective neck dissection combined with retroauricular approach in 4 cases...
July 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
Ruibo Shang, Richard Archibald, Anne Gelb, Geoffrey P Luke
Photoacoustic (PA) imaging is an emerging imaging technique for many clinical applications. One of the challenges posed by clinical translation is that imaging systems often rely on a finite-aperture transducer rather than a full tomography system. This results in imaging artifacts arising from an underdetermined reconstruction of the initial pressure distribution (IPD). Furthermore, clinical applications often require deep imaging, resulting in a low-signal-to-noise ratio for the acquired signal because of strong light attenuation in tissue...
December 2018: Journal of Biomedical Optics
Jonathan R Fincke, Charles M Wynn, Rob Haupt, Xiang Zhang, Diego Rivera, Brian Anthony
Short optical pulses emitted from a tunable Q-switched laser (800 to 2000 nm) generate laser ultrasound (LUS) signals at the surface of biological tissue. The LUS signal's acoustic frequency content, dependence on sample type, and optical wavelength are observed in the far field. The experiments yield a reference dataset for the design of noncontact LUS imaging systems. Measurements show that the majority of LUS signal energy in biological tissues is within the 0.5 and 3 MHz frequency bands and the total acoustic energy generated increases with the optical absorption coefficient of water, which governs tissue optical absorption in the infrared range...
December 2018: Journal of Biomedical Optics
Raviv Allon, Yahav Levy, Idit Lavi, Aviv Kramer, Menashe Barzilai, Ronit Wollstein
Because fragility fractures have an enormous impact on the practice of medicine and global health systems, effective screening is imperative. Currently, dual-energy X-ray absorptiometry (DXA), which has limited ability to predict fractures, is being used. We evaluated the current literature for a method that may constitute a better screening method to predict fragility fractures. A systematic review of the literature was conducted on computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound to evaluate screening methods to predict fragility fractures...
December 2018: Israel Medical Association Journal: IMAJ
Josef Stehlik, Brian Armstrong, David A Baran, Nancy D Bridges, Anil Chandraker, Robert Gordon, Teresa De Marco, Michael M Givertz, Alain Heroux, David Iklé, Judson Hunt, Abdallah G Kfoury, Joren C Madsen, Yvonne Morrison, Erika Feller, Sean Pinney, Sudipta Tripathi, Peter S Heeger, Randall C Starling
Clinical Trials in Organ Transplantation-18 (CTOT-18) is a follow-up analysis of the 200-subject multicenter heart transplant CTOT-05 cohort. CTOT-18 aimed to identify clinical, epidemiological and biological markers associated with adverse clinical events past 1 year after transplant. We examined various candidate biomarkers including serum antibodies, angiogenic proteins, blood gene expression profiles and T-cell alloreactivity. The composite endpoint (CE) included death, retransplant, coronary stent, myocardial infarction or cardiac allograft vasculopathy...
December 14, 2018: American Journal of Transplantation
Leonie Glinski, Dushyant Shetty, Stephen Iles, Benjamin Diggins, James Garvican
No standardised, comprehensive approach to Rapid On-Site Evaluation (ROSE) of cytology samples currently exists. Recent meta-analysis indicates variation in the effectiveness of ROSE [1], however, reviews commonly omit the details of how ROSE is conducted. This review demonstrates the clinical effectiveness of Single Slide Assessment (SSA) for ROSE of cytology samples, providing a highly effective, standardised methodology, maximising cell yield and the diagnostic potential of samples obtained via Endobronchial or Endoscopic ultrasound (EBUS/EUS)...
December 14, 2018: Cytopathology: Official Journal of the British Society for Clinical Cytology
Daniele Di Mascio, Filomena Giulia Sileo, Asma Khalil, Giuseppe Rizzo, Nicola Persico, Roberto Brunelli, Antonella Giancotti, Pierluigi Benedetti Panici, Ganesh Acharya, Francesco D'Antonio
OBJECTIVES: To report the rate of additional anomalies detected exclusively on prenatal MRI in fetuses affected by isolated mild or moderate ventriculomegaly (VM) according to the type of ultrasound protocol adopted (dedicated neurosonography vs standard assessment of fetal brain) and to explore whether the diagnostic performance of fetal MRI in detecting such anomalies is affected by gestational age at scan and laterality of ventricular dilatation. METHODS: The primary aim was to report the rate of additional anomalies detected exclusively on prenatal MRI in fetuses affected by isolated mild and moderate VM (ventricular dilatation between 10-15 mm) undergoing compared to those not undergoing dedicated neurosonography, defined as a detail assessment of fetal brain according to the International Society of Ultrasound in Obstetrics and Gynecology guidelines...
December 14, 2018: Ultrasound in Obstetrics & Gynecology
Bruno Doriguetto Couto Ferreira, Dalmo Correia
OBJECTIVES: To evaluate whether abdominal ultrasound (US) with a gallbladder (GB) contractility study or motor function test can be used as a diagnostic tool in patients with dengue and warning signs in acute and recovery phases. METHODS: Fifty-one individuals in the acute phase of dengue presenting with warning signs (dengue group) and 49 healthy individuals without a history of dengue or hepatobiliary disease (control group) were studied with abdominal US and a GB contractility study...
December 14, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Yuxi Yan, Qinghua Liu, Xiaofang Liu, Xincun Zhang, Lili Miao, Huanping Pang, Aiying Zhang
An ileal adenomyoma leading to intussusception is very rare. We describe the case of a 4-month-old boy who presented with hematochezia. He was diagnosed with ileal adenomyoma by sonography, which was confirmed by histopathology. This case confirms that sonography is the preferred modality to diagnose an ileal adenomyoma.
December 14, 2018: Journal of Clinical Ultrasound: JCU
Pia Klausen, Bojan Kovacevic, Anders Toxvaerd, Evangelos Kalaitzakis, John Gásdal Karstensen, Charlotte Vestrup Rift, Carsten Palnaes Hansen, Jan Storkholm, Peter Vilmann, Jane Preuss Hasselby
Intraductal papillary mucinous neoplasms (IPMNs) are precursor lesions of pancreatic ductal adenocarcinoma (PDAC). Current edition of WHO Classification of Tumors of the Digestive System recognizes four different subtypes (gastric, intestinal, pancreatobiliary, and oncocytic) and recommends analysis of mucin expression (MUC1, MUC2, MUC5AC, MUC6) as well as evaluation of architectural and cell differentiation patterns for correct classification. However, there is no consensus on MUC1 expression of IPMN-lesions in the literature...
January 2019: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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