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Ultrasound Or Sonography

Nadav Schwartz, Julia Siegal, Aaron Rourke, Chandra M Sehgal
OBJECTIVES: Vascular resistance is known to be one of the determinants of pulsatile flow. This study aimed to investigate whether quantitative 2-dimensional Doppler ultrasound can capture and evaluate the pulsatility within the placental bed vasculature. METHODS: The placental bed vasculature was imaged by directional power Doppler ultrasound. Ten-second cine clips were recorded by using standardized machine settings. A region of interest with a prominent Doppler signal in the uteroplacental interface was analyzed for the percentage of vascularity to generate a time-vascularity waveform...
August 19, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Sylvain Droneau, Elise Noel-Savina, Gavin Plat, Marlene Murris-Espin, Aurélie Leborgne-Krams, Laurent Brouchet, Marcel Dahan, Alain Didier
The authors report their findings regarding lung ultrasound profiles in a population of transplant recipients. Twenty-two patients were studied once each in multiple different ultrasound windows focusing on pleural, lung, and diaphragmatic signatures. All studies were performed in presumably otherwise healthy recipients at an outpatient follow-up visit at least 3 months after transplantation. Those with recent pulmonary infections or decline in lung function were excluded from enrollment. The majority of scans revealed otherwise normal lungs with lung sliding, but there were more abnormalities than one would expect in a healthy control group...
August 19, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Michael I Prats, Bret P Nelson, Delia L Gold, Lauren D Branditz, Creagh T Boulger, David P Bahner
Protocols for the sanitation and maintenance of point-of-care ultrasound (US) equipment are lacking. This study introduces the CLEAR protocol (clean, locate, energize, augment supplies, and remove patient identifiers) as a tool to improve the readiness of US equipment, termed US equipment homeostasis. The state of US equipment homeostasis in the emergency department of a single academic center was investigated before and after implementing this protocol, with an improvement in outcomes. These findings demonstrate that the CLEAR protocol can improve US homeostasis...
August 19, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
A N Evdokimenko, T S Gulevskaya, L D Druina, A O Chechetkin, A A Shabalina, M V Kostyreva, K N Kulichenkova, A D Pryamikov, M M Tanashyan
The study demonstrates significant variety of neovascularization degree and vessel diameter in the carotid atherosclerotic plaque. It is suggested that the increase in the number of vessels with a diameter <20 μ can be indicative of increased atherosclerosis activity, while the increase in the number of vessels with a diameter ≥40 μ indicates "reparative potential" of plaques. Duplex contrast-enhanced ultrasound scanning allows characterization of the localization and number of vessels with a diameter of ≥30 μ in the plaque, while even slight elevation of plasma concentration of basic fibroblast growth factor attests, first of all, to increased content of small vessels <30 μ in the plaque...
August 18, 2018: Bulletin of Experimental Biology and Medicine
Marina Carbone, Vincenzo Ferrari, Michele Marconi, Roberta Piazza, Andrea Del Corso, Daniele Adami, Quintilia Lucchesi, Valeria Pagni, Raffaella Berchiolli
In non-urban scenarios: rural areas or small cities, there is often a limited access to specialistic healthcare due to the inherent challenges associated with recruitment, retention, and access to healthcare professionals. Telemedicine is an economical and effective way to address this problem. In this research, we developed a framework for real-time communication during ultrasound examination that combines interaction via standard video conference protocols and basic AR functionalities (commercial) and a custom-developed application...
August 18, 2018: Updates in Surgery
Dorien Geertsema, Joris E Meinardi, Dagmar R J Kempink, Marta Fiocco, Michiel A J van de Sande
PURPOSE: To assess whether delayed radiological hip screening at five months (versus ultrasound at 3 months) results in a higher incidence of persistent developmental dysplasia of the hip (DDH) at 18 months. METHODS: We analyzed 3536 screened neonates (2009-2013) at age two to three weeks. In the case of risk factors for DDH, 460 infants were assigned to a pelvic radiograph at five months between 2009 and 2010 and 651 infants were assigned to an ultrasound at three months (2011-2013)...
August 18, 2018: International Orthopaedics
Wei Zhu, Gang Mai, Xiang Zhou, Bin Song
PURPOSE: The aim of this study is to review our initial experience of Double contrast-enhanced ultrasonography (DCEUS) in the preoperative detection of pancreatic tail occult tumors. METHODS: Thirty-five patients were recruited to undergo DCEUS of the pancreas suspected by occult lesions of pancreatic with MRI or clinical evidence. The radiologists assessed the images (conventional US, DCEUS, and MRI) for enhancement phases, tumor presence, location, enhancement characteristics, and tumor conspicuity...
August 18, 2018: Abdominal Radiology
Samuel J Galgano, Mark E Lockhart, Ghaneh Fananapazir, Rupan Sanyal
Doppler ultrasound is routinely used for the post-operative evaluation of renal transplant patients. Knowledge of the surgical anatomy and application of a robust technique are important for appropriate evaluation of a transplanted kidney. In this review article, we discuss the surgical anatomy of renal transplantation, techniques to optimize image acquisition, as well as commonly associated pitfalls with Doppler ultrasound evaluation of renal grafts.
August 18, 2018: Abdominal Radiology
Tanya Sapundzhieva, Rositsa Karalilova, Anastas Batalov
To assess the role of musculoskeletal ultrasound as a predictor for the achievement of DAS28 remission in patients with rheumatoid arthritis (RA). One hundred and forty-one patients underwent physical and ultrasound examination at five visits (at baseline and after 1, 3, 6 and 12 months). Patients were divided into two groups according to the type of treatment, which involved synthetic (sDMARDs) and biologic (bDMARDs) disease-modifying antirheumatic drugs. Ultrasound assessment of the wrist, second and third metacarpophalangeal, second and third proximal interphalangeal joint, second and fifth metatarsophalangeal joint (the German US7 score) was performed on gray scale (GS) and on power Doppler ultrasound (PDUS)...
August 18, 2018: Rheumatology International
Nathalie J M Bravo-Valenzuela, Paulo Zielinsky, Jesús Zurita-Peralta, Luiz Henrique Nicoloso, Antonio Piccoli, Luiza Ferreira Van der Sand, Natássia Miranda Sulis, Camila Carvalho Ritter
INTRODUCTION: In intrauterine growth restriction (IUGR), increased uteroplacental vascular impedance contributes to preferential flow to left ventricle (LV), with consequent alteration of its compliance and increased left atrial (LA) pressure. Pulmonary vein pulsatility index (PVPI) reflects the increased impedance to LA filling and could be used as a cardiac monitoring parameter in IUGR. MATERIAL AND METHODS: A total of 27 IUGR fetuses (group 1), 28 fetuses with appropriate growth for gestational age from hypertensive mothers (group 2), and 28 controls (group 3) were studied...
August 17, 2018: Fetal Diagnosis and Therapy
Winnie W Y Chan, Piya Chaemsaithong, Wen Teng Lim, Ada W T Tse, Angel H W Kwan, Tak Yeung Leung, Daljit S Sahota, Liona C Poon
OBJECTIVE: To examine (1) the concordance of manual and automated para-symphyseal angle of progression (psAOP) measurements, (2) the repeatability of psAOP, head-symphysis distance, head-perineum distance, and sonographic cervical dilatation, and (3) the value of transperineal ultrasound (TPU) in predicting induction of labor (IOL) outcome. METHODS: We performed a prospective study in 308 women with singleton pregnancies undergoing IOL at term. Logistic regression analysis was used to determine which maternal factors, Bishop score, method of IOL, and TPU parameters were significant predictors of cesarean section (CS) and CS due to no progress (CS-NP)...
August 17, 2018: Fetal Diagnosis and Therapy
Samarth Agarwal, Sunny Goel, Ruchir Aeron, Satya Narayan Sankwar
Accidental placement of Foley catheter in ureter is a rare phenomenon. It is more common in females with neurogenic bladder who have hypocontractile bladder or there can be iatrogenic placement during surgical procedures. We describe a case of a female suffering from upper motor neuronal lesion due to trauma at T8 level (American Spinal Injury grade A) following which she developed neurogenic bladder. A Foley catheter was unintentionally placed in the ureter and subsequently removed through a novel technique of percutaneous ultrasound-guided balloon puncture...
August 17, 2018: BMJ Case Reports
Kai Chun Andrew Cheng, Yan-Lin Li, Tina Lam
A 46-year-old woman with a known history of acute myeloid leukaemia presented with bilateral breast masses with pain and itchiness. The breast masses were hard on palpation. Mammogram was unremarkable. Ultrasound showed multiple conglomerated masses of heterogeneous hyperechogenicity and hypoechogenicity throughout all quadrants of bilateral breasts. Pathology showed mononuclear cells, suggestive of breast leukaemic infiltration. She was treated with decitabine and platelet transfusion.
August 17, 2018: BMJ Case Reports
Md Tauhidul Islam, Raffaella Righetti
Fluid pressure and fluid velocity carry important information for cancer diagnosis, prognosis and treatment. Recent work has demonstrated that estimation of these parameters is theoretically possible using ultrasound poroelastography. However, accurate estimation of these parameters requires high quality axial and lateral strain estimates from noisy ultrasound radio frequency (RF) data. In this paper, we propose a filtering technique combining two efficient filters for removal of noise from strain images, i...
August 9, 2018: Computers in Biology and Medicine
Yongzhao Zhao, Ning Yan, Shunzhi Yu, Tianqi Zhang, Chuanfeng Wang, Shisheng He, Guangfei Gu
OBJECTIVES: This study aimed to introduce ultrasound volume navigation (UVN) to reducing the radiation exposure and puncture time of percutaneous transpedicular puncture (PTPP) in percutaneous vertebroplasty (PVP) or percutaneous kyphoplasty (PKP). METHODS: We retrospectively reviewed the medical records of osteoporotic vertebral compression fracture (OVCF) patients, who underwent PVP or PKP guided by UVN or fluoroscopy from September 2017 to December 2017. RESULTS: 10 patients (6 females, 4 males) involving 24 pedicles were enrolled into the study...
August 16, 2018: World Neurosurgery
Mohammed Bu Bshait, Hassan Alyami, Emad Al-Osail, Haytham Al Arfaj
INTRODUCTION: Hypoglossal nerve palsy (HNP) is a rare complication of airway management. Multiple factors have been postulated to contribute to its occurrence. Herein, we present a case of ipsilateral HNP following left hemithyroidectomy. CASE PRESENTATION: A 47-year-old women presented complaining of left thyroid swelling for 1 year with no symptoms of compression or hormonal impairment. Ultrasound of the neck showed a 3 × 2 cm nodule in the left thyroid lobe without lymphadenopathy...
August 11, 2018: International Journal of Surgery Case Reports
Shira Varon, Ram Parvataneni, Elaine Waetjen, Kathleen Dunn, Vanessa L Jacoby
BACKGROUND: Minimally invasive therapies to treat symptoms of uterine fibroids can be effective alternatives to major surgery. Such modalities include pharmacologic agents, uterine artery embolization (UAE), MR guided focused ultrasound, and laparoscopic radiofrequency ablation (Acessa procedure). Acessa is being used to treat women with symptomatic fibroids and was approved by the FDA in 2012. CASE: This case describes a patient who underwent Acessa and subsequently required hysterectomy for refractory symptoms...
August 16, 2018: Journal of Minimally Invasive Gynecology
Gustavo Plaza-Manzano, Marta Ríos-León, Patricia Martín-Casas, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas, Ricardo Ortega-Santiago
Our aim was to investigate the differences in pressure sensitivity over musculoskeletal and nerve symptomatic and distant areas between individuals with plantar heel pain and healthy subjects, and to determine the relationship between sensitivity to pressure pain, foot pain, and fascia thickness. Thirty-five patients with unilateral chronic plantar heel pain and 35 matched healthy controls participated. Pressure pain thresholds (PPTs) were bilaterally assessed over several nerve trunks (median, radial, ulnar, common peroneal, tibial and sural nerve trunks) and musculoskeletal structures (calcaneus, medial gastrocnemius, tibialis anterior, second metacarpal) by an assessor blinded to the subject's condition...
August 16, 2018: Journal of Pain: Official Journal of the American Pain Society
Kaled Diab, Suhas Kochat, James McClintic, Heather L Stevenson, Steven C Agle, Kelly Olino, Douglas S Tyler, Kimberly M Brown
BACKGROUND: Image-guided microwave ablation (MWA) is a technically demanding procedure, involving advanced visual-spatial perception skills. This study sought to create and evaluate a low-cost model and training curriculum for open ultrasound-guided liver tumor MWA. METHODS: Simulated tumors were created, implanted into bovine livers, and visualized by ultrasound. A high-fidelity abdominal model was constructed, with a total cost of $30. Experienced physicians in MWA performed simulated ablations and evaluated the model...
August 16, 2018: Journal of Surgical Education
Tobias Zuchelli, Cyrus Piraka
No abstract text is available yet for this article.
August 15, 2018: Clinical Gastroenterology and Hepatology
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