Full Text Journal Articles about
Ultrasound

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Transition to Turbulence Downstream of a Stenosis for Whole Blood and a Newtonian Analog Under Steady Flow Conditions.

Rayanne Pinto Costa, Blaise Simplice Talla Nwotchouang, Junyao Yao, Dipankar Biswas, David Casey, Ruel McKenzie, David A Steinman, Francis Loth,

Blood, a multiphase fluid comprised of plasma, blood cells, and platelets, is known to exhibit a shear-thinning behavior at low shear rates and near-Newtonian behavior at higher shear rates. However, less is known about the impact of its multiphase nature on the transition to turbulence. In this study, we experimentally ... Read more >>

J Biomech Eng (Journal of biomechanical engineering)
[2022, 144(3):]

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Vascular Imaging in Small Animals Using Clinical Ultrasound Scanners.

Aung Moe Zaw, Richard Shangguan, Yuan Yao, YeJin Jeong, Billy Y S Yiu, Adrian J Y Chee, Alfred C H Yu, Evelyn K F Yim,

Conventional ultrasound with frequency (2-15 MHz) has been a global diagnostic and therapeutic tool in clinical medicine, and high-frequency ultrasound (>30 MHz) has been a powerful investigative device for preclinical studies such as cardiovascular research. In this chapter, we describe the use of conventional ultrasound with a 2.5-10 MHz transducer as an investigative ... Read more >>

Methods Mol Biol (Methods in molecular biology (Clifton, N.J.))
[2022, 2375:191-201]

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Numerical Study of Bubble Cloud and Thermal Lesion Evolution During Acoustic Droplet Vaporization Enhanced HIFU Treatment.

Ying Xin, Aili Zhang, Lisa X Xu, J Brian Fowlkes,

Acoustic droplet vaporization (ADV) has been proven to enhance high intensity focused ultrasound (HIFU) thermal ablation of tumor. It has also been demonstrated that triggering droplets before HIFU exposure could be a potential way to control both the size and the shape of the thermal lesion. In this paper, a ... Read more >>

J Biomech Eng (Journal of biomechanical engineering)
[2022, 144(3):]

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Measurement of human abdominal and femoral intravascular adipose tissue blood flow using percutaneous Doppler ultrasound.

Ioannis G Lempesis, Gijs H Goossens, Konstantinos N Manolopoulos,

Adipose tissue blood flow (ATBF) is an important determinant of adipose tissue (AT) function. <sup>133</sup>Xenon wash-out technique is considered the gold-standard for human ATBF measurements. However, decreasing <sup>133</sup>Xenon clinical use and costly production and preservation, make alternative (non-invasive) methods necessary. Here, we explored percutaneous Doppler ultrasound as a proxy method ... Read more >>

Adipocyte (Adipocyte)
[2021, 10(1):119-123]

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Access to ultrasound imaging: A qualitative study in two northern, remote, Indigenous communities in Canada.

Scott J Adams, Paul Babyn, Brent Burbridge, Rachel Tang, Ivar Mendez,

Ultrasound imaging is an essential component of healthcare services. This study sought to explore perceptions of access, and factors which shape access, to ultrasound imaging in two northern, remote, Indigenous communities in Canada. Using interpretive description as a methodological approach and a multi-dimensional conceptualisation of access to care as a ... Read more >>

Int J Circumpolar Health (International journal of circumpolar health)
[2021, 80(1):1961392]

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Value of contrast-enhanced ultrasonography in radiofrequency ablation of secondary hyperparathyroidism.

Xiachuan Qin, Baofu Wang, Boliang Li, Changwei Lin, Xuebin Liu, Xisheng Xie,

<h4>Objectives</h4>The purpose of the current study was to determine the performance of contrast-enhanced ultrasound (CEUS) in the assessment of radiofrequency ablation (RFA) of hyperplastic parathyroid glands due to secondary hyperparathyroidism (SHPT).<h4>Methods</h4>Thirty-two patients, each with ≥4 hyperplastic parathyroid glands due to SHPT, underwent RFA <i>via</i> hydro-dissection. CEUS was performed in each ... Read more >>

Ren Fail (Renal failure)
[2021, 43(1):445-451]

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Absence of renal cortical anisotropic backscattering artifact in feline chronic kidney disease.

Ping-Hsien Chou, Hock Gan Heng, Fang-Ju Lin, Kuan-Sheng Chen,

Renal cortical anisotropy backscattering artifact (CABA) is a focal hyperechoic region where the tubules are parallel to the incident ultrasound beam, reflecting most of the beams to the transducer. To investigate the association between chronic kidney disease (CKD) and the absence of renal CABA in cats. Ultrasonographic renal images of ... Read more >>

Vet Q (The veterinary quarterly)
[2021, 41(1):210-216]

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Reference biometry of foetal brain by prenatal MRI and the distribution of measurements in foetuses with ventricular septal defect.

Feng Xia, Yu Guo, Hua He, Peiwen Chen, Jianbo Shao, Wei Xia,

<h4>Objective</h4>To provide the reference biometric measurements of the normal foetal brain by prenatal MRI and describe the distribution of measurements in the foetuses with ventricular septal defect (VSD).<h4>Methods</h4>This retrospective study analysed the biometric measurements of 218 foetuses between 18 - 37 gestational weeks with normal MRI findings from July 2014 to August ... Read more >>

Ann Med (Annals of medicine)
[2021, 53(1):1428-1437]

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Uterine dehiscence in pregnant with previous caesarean delivery.

Zhengfeng Zhu, HeZhou Li, JunQing Zhang,

<h4>Background</h4>The main risk factor for uterine scar dehiscence is a previous caesarean section. Better characterisation of the ultrasonographic features of uterine scar dehiscence may improve preoperative diagnostic accuracy in pregnant women with a caesarean scar. This study aimed to evaluate the ultrasonographic features of uterine scar dehiscence in pregnant women ... Read more >>

Ann Med (Annals of medicine)
[2021, 53(1):1265-1269]

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Distal radial approach versus conventional radial approach: a comparative study of feasibility and safety.

Rania Hammami, Fatma Zouari, Mohamed Aymen Ben Abdessalem, Awatef Sassi, Tarek Ellouze, Amine Bahloul, Souad Mallek, Faten Triki, Abdallah Mahdhaoui, Gouider Jeridi, Leila Abid, Selma Charfeddine, Samir Kammoun, Jihen Jdidi,

The distal radial approach (DRA) is suggested to have benefits over the conventional radial approach (CRA) in terms of local complications and comfort of both patient and operator. Therefore, we aimed to compare the feasibility and safety of DRA and CRA in a real life population. We conducted a prospective, ... Read more >>

Libyan J Med (The Libyan journal of medicine)
[2021, 16(1):1830600]

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Three cases of retained cuff related infection after manual pull removal of peritoneal dialysis catheter.

Suojian Zhang, Xu Zhang, Haitao Li, Zhiqiang Wei, Juan Cao,

Ren Fail (Renal failure)
[2021, 43(1):58-61]

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LIPUS inhibits inflammation and catabolism through the NF-κB pathway in human degenerative nucleus pulposus cells.

Weiwei Yi, Qing Chen, Chuan Liu, Kaiting Li, Bailong Tao, Guihua Tian, Lu Zhou, Xiaohong Li, Jieliang Shen, Bo Liu, Zhenming Hu, Dawu Wang, Dingqun Bai,

Low-intensity pulsed ultrasound (LIPUS) is a safe and noninvasive rehabilitative physical therapy with anti-inflammatory effects. The current study investigated the effect of LIPUS on the inflammation of nucleus pulposus (NP) cells and its underlying mechanism. Human NP cells were acquired from lumbar disc herniation tissue samples and cultured for experiments. ... Read more >>

J Orthop Surg Res (Journal of orthopaedic surgery and research)
[2021, 16(1):619]

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Prenatal genetic diagnosis of omphalocele by karyotyping, chromosomal microarray analysis and exome sequencing.

Xiaomei Shi, Hui Tang, Jian Lu, Xiue Yang, Hongke Ding, Jing Wu,

<h4>Objectives</h4>The aim of this study is to share our experience in the prenatal diagnosis of omphalocele by karyotyping, chromosomal microarray analysis (CMA) and whole exome sequencing (WES).<h4>Methods</h4>In this retrospective study, 81 cases of omphalocele were identified from 2015 to 2020. Associated anomalies and prenatal diagnosis based on karyotyping, CMA and ... Read more >>

Ann Med (Annals of medicine)
[2021, 53(1):1285-1291]

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Pregnancy-related atypical hemolytic uremic syndrome with renal, cardiac and obstetric complications and a satisfactory recovery: a case report.

Emrah Gunay, Mahsum Ozan, Seyhmus Kaya, Ece Ocal, Zeynep Kutlu, Ayhan Senol, Ramazan Danis, Erkan Baysal, Burhan Sami Kalin, Huseyin Derya Dincyurek, Cengiz Demir,

Ren Fail (Renal failure)
[2021, 43(1):460-462]

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Pulsed ultrasound for bone regeneration - outcomes and hurdles in the clinical application: a systematic review.

R Puts, R Vico, N Beilfuß, M Shaka, F Padilla, K Raum,

Impaired bone-fracture healing is associated with long-term musculoskeletal disability, pain and psychological distress. Low-intensity pulsed ultrasound (LIPUS) is a non-invasive and side-effect-free treatment option for fresh, delayed- and non-union bone fractures, which has been used in patients since the early 1990s. Several clinical studies, however, have questioned the usefulness of ... Read more >>

Eur Cell Mater (European cells & materials)
[2021, 41:281-311]

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Effect of low-level ultrasound treatment on the production of L-leucine by Corynebacterium glutamicum in fed-batch culture.

Yufu Zhang, Zhichao Chen, Pengjie Sun, Qingyang Xu, Ning Chen,

Various process intensification methods were proposed to improve the yield, quality, and safety of fermented products. Here, we report the enhancement of L-leucine production by <i>Corynebacterium glutamicum</i> CP using ultrasound-assisted fed-batch fermentation. Response surface methodology was employed to optimize the sonication conditions. At an ultrasonic power density of 94 W/L, frequency ... Read more >>

Bioengineered (Bioengineered)
[2021, 12(1):1078-1090]

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Soluble Endoglin and Uterine Artery Flow Doppler Ultrasonography as Markers of Progression to Preeclampsia in Women with Gestational Hypertension.

Carlos José Molina Pérez, Ana Graciela Nolasco Leaños, Reyes Ismael Carrillo Juárez, María Guadalupe Berumen Lechuga, Irma Isordia Salas, Alfredo Leaños Miranda,

Gestational hypertension (GH) pregnancies are at a high risk of developing adverse outcomes, including progression to preeclampsia. Prediction of GH-related adverse outcomes is challenging because there are no available clinical tests that may predict their occurrence. The aim of the study was to determine the clinical usefulness of the soluble ... Read more >>

Gynecol Obstet Invest (Gynecologic and obstetric investigation)
[2021, :1-9]

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Ultrasound-Stimulated Microbubbles Inhibit Aggressive Phenotypes and Promotes Radiosensitivity of esophageal squamous cell carcinoma.

Jinjun Shi, Chenchun Fu, Xiangyu Su, Shicheng Feng, Sheng Wang,

Ultrasound (US) is reported to improve the delivery efficiency of drugs loading onto large nanoparticles due to the sonoporation effect. Microbubbles (MBs) can be used as contrast agents of US expanding and contracting under low-amplitude US pressure waves. Ultrasound-stimulated microbubbles (USMBs) therapy is a promising option for the treatment of ... Read more >>

Bioengineered (Bioengineered)
[2021, 12(1):3000-3013]

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Diagnosis of cervical plexus tumours by high-frequency ultrasonography.

Wenqing Gong, Jing Wang, Liwei Huang, Xu Yang, Dingzhang Chen, Minjuan Zheng,

<h4>Background</h4>Cervical plexus (CP) tumours are difficult to diagnose because of atypical symptoms. This study aimed to summarize the features of a normal CP and CP tumours observed on high-frequency ultrasonography.<h4>Methods</h4>The ultrasound data of 11 CP tumour patients and 22 normal volunteers were collected. All 11 patients underwent magnetic resonance imaging ... Read more >>

BMC Med Imaging (BMC medical imaging)
[2021, 21(1):148]

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Characterization of Cutaneous and Subcutaneous Neoplasms in Canines and Malignancy Prediction Using B-Mode Ultrasonography, Doppler, and ARFI Elastography

Igor Cezar Kniphoff Cruz, Rafael Kretzer Carneiro, Andrigo Barboza Nardi, Ricardo Andrés Ramirez Uscategui, Eduarda Mazzardo Bortoluzzi, Marcus Antônio Rossi Feliciano,

<h4>Background: </h4> Cutaneous and subcutaneous neoplasms are highly prevalent in dogs, ranging from benign to highly aggressive and metastatic lesions. The diagnosis is obtained through histopathology, however it is an invasive technique that may take a long time to obtain the result, delaying the beginning of the adequate treatment. Thus, ... Read more >>

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Usefulness of ultrasonography for dynamic evaluation of medial meniscus hoop function in early knee osteoarthritis.

Kengo Shimozaki, Junsuke Nakase, Kazuki Asai, Rikuto Yoshimizu, Mitsuhiro Kimura, Tomoyuki Kanayama, Takashi Kitagawa, Hiroyuki Tsuchiya,

This study aimed to evaluate the dynamics of the medial meniscus during knee flexion-extension by ultrasonography and compare them with MRI findings to confirm the usefulness of ultrasonography for evaluating early knee osteoarthritis (KOA). In total, 100 patients were diagnosed with early KOA using clinical and radiographical findings. Dynamic ultrasonographic ... Read more >>

Sci Rep (Scientific reports)
[2021, 11(1):20091]

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Sphenoid sinus mucocele causing ptosis with pupil-spared ophthalmoplegia: A hint on carotid artery Doppler ultrasound.

Aldo F Costa, Paula Martinez, Nazaret Pelaez, Alejandro Peral, Jose C Estevez,

<b>Objective:</b> Sphenoid sinuses mucocele (SSM) is an uncommon cause of orbital apex syndrome (OAS). Diagnosis of neurological complications in SSM might be delayed when the expansion of mucocele beyond the sinuses is not evident in conventional sinuses imaging.<b>Methods:</b> We present a case of a 76-years old man with spared-pupil ophthalmoplegia ... Read more >>

Int J Neurosci (The International journal of neuroscience)
[2021, :1-4]

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Congenital extrahepatic portosystemic shunt type II occluded with cardiac closure device

Gisela Andrade, João Facas, Pedro Marques, Ana Nassauer Mónica, Paulo Donato,

Congenital extrahepatic portosystemic shunts are a rare cause of lower gastrointestinal bleeding in children. They result from the connection of a systemic vessel with the portomesenteric vasculature before the division of the main portal vein. Herein, we report a case of a congenital extrahepatic portosystemic shunts type II in a ... Read more >>

Radiol Case Rep (Radiology case reports)
[2021, 16(12):3802-3806]

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Grayscale and Spectral Doppler Ultrasound in the Diagnosis of Hepatic Veno-occlusive Disease/Sinusoidal Obstruction Syndrome After Hematopoietic Stem Cell Transplantation in Children.

Nusabe Kaya,

The aim of this study is to determine the ultrasound criteria in the diagnosis of hepatic veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) after hematopoietic stem cell transplantation (HSCT) in children. A total of 158 pediatric patients underwent HSCT between January 2016 and January 2018. In all, 71 patients with clinically suspicious ... Read more >>

J Pediatr Hematol Oncol (Journal of pediatric hematology/oncology)
[2021, :]

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Application of ultrasound in the closed reduction and percutaneous pinning in supracondylar humeral fractures.

Yang Wu, Rongbin Lu, Shijie Liao, Xiaofei Ding, Wei Su, Qinjun Wei,

<h4>Background</h4>Ultrasound examination can be applied to the diagnosis of pediatric elbow fracture. This study aims to analyze the application value of ultrasound in the surgical treatment of supracondylar humeral fractures.<h4>Methods</h4>64 children with supracondylar humeral fractures were treated with ultrasound-guided closed reduction and percutaneous pinning (CRPP), 31 patients were treated with ... Read more >>

J Orthop Surg Res (Journal of orthopaedic surgery and research)
[2021, 16(1):588]

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