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aorta ultrasound

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https://www.readbyqxmd.com/read/28515742/the-use-of-intraoperative-epiaortic-ultrasonography-in-monitoring-patients-over-75-years-old-treated-with-aortic-valve-replacement
#1
Tomasz Niklewski, Michał Zembala, Dariusz Puszczewicz, Paweł Nadziakiewicz, Wojciech Karolak, Marian Zembala
INTRODUCTION: Epiaortic ultrasound scanning (EAS) extended the use of ultrasound to the intraoperative diagnosis of aortic pathology. Surgical palpation of the ascending aorta underestimates the presence and severity of atherosclerotic plaques. Epiaortic ultrasound scanning has been used as an adjunct to transesophageal echocardiography (TEE) or as a primary direct diagnostic tool for imaging the ascending aorta as well as the aortic arch, which gained prominence as part of a multipronged intraoperative strategy to reduce atherosclerotic emboli...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28514894/successful-repair-of-acute-type-b-and-retrograde-type-a-aortic-dissection-with-kidney-ischemia
#2
Jeko M Madjarov, Michael G Katz, Hector Crespo-Soto, Svetozar Madzharov, Timothy Roush, Francis Robicsek
Acute dissection of thoracic aorta carries a risk of renal ischemia followed by the development of a kidney failure. The optimal surgical and nonsurgical management of these patients, timing of intervention, and the factors predicting renal recovery are not well delineated and remain controversial. We present a case of acute type B thoracic aortic dissection with left kidney ischemia. Evaluation of renal function was performed by the means of internationally accepted Risk, Injury, Failure, Loss of kidney function, End stage kidney disease and Acute Kidney Injury Network classifications for acute kidney injury, renal duplex sonography, and intravascular ultrasound that demonstrated left renal artery dissection with a flap completely compressing the true lumen...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28503707/the-value-of-ultrasound-in-diagnosing-extracranial-large-vessel-vasculitis-compared-to-fdg-pet-ct-a-retrospective-study
#3
Christian Löffler, Johannes Hoffend, Urs Benck, Bernhard K Krämer, Raoul Bergner
Large-vessel vasculitis (LVV) is a group of diseases mainly comprised of giant-cell arteritis (GCA), Takayasu arteritis, and a series of rare diseases like Behçet's disease, IgG4-related disease, infectious aortitis, and other unfrequent entities. Besides clinical and laboratory features, Doppler sonography (DS) can assist in establishing the diagnosis. Its diagnostic sensitivity has been evaluated in various studies, most of them, however, in temporal arteritis (TA) respectively in LVV with involvement of the temporal artery...
May 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28500378/intravascular-ultrasound-elastography-analysis-of-the-elastic-mechanical-properties-of-atherosclerotic-plaque
#4
Zhaohuan Li, Lin Wang, Xiaobo Hu, Pengfei Zhang, Yifei Chen, Xinxin Liu, Mingjun Xu, Haijun Su, Mei Zhang
To assess the elastic mechanical properties of atherosclerotic plaque with different morphological properties by intravascular ultrasound elastography (IVUSE). 30 purebred New Zealand rabbits were fed a high-cholesterol diet; the abdominal aorta endothelium was balloon-injured after 2 weeks; at week 12, 2 plaques with moderate echo from each rabbit were chosen for in situ imaging, and 2 consecutive frames near the end-diastole images in situ were used to construct an IVUS elastogram. Shear strain (SS) and area strain (AS) were greater for eccentric than centripetal plaque (SS: 2...
May 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28491449/metastatic-pulmonary-carcinomas-in-cats-feline-lung-digit-syndrome-further-variations-on-a-theme
#5
Elizabeth Thrift, Chris Greenwell, Audra-Lynne Turner, Andrea M Harvey, Donna Maher, Richard Malik
CASE SERIES SUMMARY: The aim of this retrospective case series was to describe seven cases where cats with primary lung tumours were presented because of metastases to extra-pulmonary sites ('feline lung-digit syndrome'). Specifically, we wanted to emphasise less typical case descriptions where tumour emboli resulted in lesions developing in the musculature (including the muscles of the head), skin or distal aorta. RELEVANCE AND NOVEL INFORMATION: The cases are presented to increase clinical awareness of this entity in feline practice, especially when characteristic combinations of clinical signs are present...
January 2017: JFMS Open Rep
https://www.readbyqxmd.com/read/28471026/re-myocardial-deformation-in-fetuses-with-coarctation-of-the-aorta-a-case-control-study-j-o-miranda-l-hunter-s-tibby-g-sharland-o-miller-and-j-m-simpson-ultrasound-obstet-gynecol-2017-49-623-629
#6
https://www.readbyqxmd.com/read/28469915/theoretical-investigation-of-transgastric-and-intraductal-approaches-for-ultrasound-based-thermal-therapy-of-the-pancreas
#7
Serena J Scott, Matthew S Adams, Vasant Salgaonkar, F Graham Sommer, Chris J Diederich
BACKGROUND: The goal of this study was to theoretically investigate the feasibility of intraductal and transgastric approaches to ultrasound-based thermal therapy of pancreatic tumors, and to evaluate possible treatment strategies. METHODS: This study considered ultrasound applicators with 1.2 mm outer diameter tubular transducers, which are inserted into the tissue to be treated by an endoscopic approach, either via insertion through the gastric wall (transgastric) or within the pancreatic duct lumen (intraductal)...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28453577/abdominal-aortic-aneurysm-screening-program-using-hand-held-ultrasound-in-primary-healthcare
#8
Antoni Sisó-Almirall, Belchin Kostov, Marta Navarro González, Daniel Cararach Salami, Alfonso Pérez Jiménez, Rosa Gilabert Solé, Concepció Bru Saumell, Lluís Donoso Bach, Mireia Villalta Martí, Luis González-de Paz, Rafael Ruiz Riera, Vicenç Riambau Alonso, Nihan Acar-Denizli, Marta Farré Almacellas, Manuel Ramos-Casals, Jaume Benavent Àreu
We determined the feasibility of abdominal aortic aneurysm (AAA) screening program led by family physicians in public primary healthcare setting using hand-held ultrasound device. The potential study population was 11,214 men aged ≥ 60 years attended by three urban, public primary healthcare centers. Participants were recruited by randomly-selected telephone calls. Ultrasound examinations were performed by four trained family physicians with a hand-held ultrasound device (Vscan®). AAA observed were verified by confirmatory imaging using standard ultrasound or computed tomography...
2017: PloS One
https://www.readbyqxmd.com/read/28447918/no-relation-between-biomarkers-at-age-47-49-and-aortic-diameter-after-14-19-years-of-follow-up-a-population-based-study
#9
Soumia Taimour, Moncef Zarrouk, Jan Holst, Olle Melander, Gunar Engström, J Gustav Smith, Anders Gottsäter
BACKGROUND: Biomarkers reflecting diverse pathophysiological pathways may play an important role in the pathogenesis of abdominal aortic aneurysm (aortic diameter ≥30 mm, AAA), levels of many biomarkers are elevated and correlated to aortic diameter among 65-year-old men undergoing ultrasound (US) screening for AAA. PROBANDS AND METHODS: To evaluate potential relationships between biomarkers and aortic dilatation after long-term follow-up, levels of C-reactive protein (CRP), proneurotensin (PNT), copeptin (CPT), lipoprotein-associated phospholipase 2 (Lp-PLA2), cystatin C (Cyst C), midregional proatrial natriuretic peptide (MR-proANP), and midregional proadrenomedullin (MR-proADM) were measured in 117 subjects (114 [97 %] men) aged 47-49 in a prospective population-based cohort study, and related to aortic diameter at US examination of the aorta after 14-19 years of follow-up...
April 27, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28439427/double-aorta-artifact-in-sonography-a-diagnostic-challenge
#10
REVIEW
Robert Hadzik, Przemysław Bombiński, Michał Brzewski
The double aorta artifact was described and studied thoroughly twenty-five years ago. Despite this, it is still not commonly known today and can cause diagnostic difficulty. Total aortic duplication can be considered an anatomic defect whilst partial duplication mimics aortic dissection. In the literature, this artifact has been compared with a very rare anomaly, i.e. the occurrence of two aortas in one patient. Currently, however, the differentiation of this artifact from abdominal aortic dissection seems to be of greater significance...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28434702/inhibition-or-deletion-of-angiotensin-ii-type-1-receptor-suppresses-elastase-induced-experimental-abdominal-aortic-aneurysms
#11
Haojun Xuan, Baohui Xu, Wei Wang, Hiroki Tanaka, Naoki Fujimura, Masaaki Miyata, Sara A Michie, Ronald L Dalman
OBJECTIVE: Angiotensin (Ang) II type 1 receptor (AT1) activation is essential for the development of exogenous Ang II-induced abdominal aortic aneurysms (AAAs) in hyperlipidemic animals. Experimental data derived from this modeling system, however, provide limited insight into the role of endogenous Ang II in aneurysm pathogenesis. Consequently, the potential translational value of AT1 inhibition in clinical AAA disease management remains incompletely understood on the basis of the existing literature...
April 20, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28430714/ultrasound-molecular-imaging-of-inflammation-in-mouse-abdominal-aorta
#12
Shiying Wang, Sunil Unnikrishnan, Elizabeth B Herbst, Alexander L Klibanov, Frank William Mauldin, John A Hossack
OBJECTIVES: The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS: Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28394003/prevalence-of-abdominal-aortic-aneurysms-in-rural-urban-population-in-central-poland
#13
Tadeusz L Dereziński, Bartosz Fórmankiewicz, Arkadiusz Migdalski, Paweł Brazis, Grzegorz Jakubowski, Łukasz Woda, Arkadiusz Jawień
BACKGROUND: Abdominal aortic aneurysm (AAA) is a widening of the aorta below the renal arteries with a diameter equal or greater than 3 cm. The prevalence of AAA is estimated at 4-8% in men aged 65 years or older and 1-2% among women over 65 years. Participation in screening programs has decreased the number of aortic ruptures. METHODS: All men aged 60 years and older, and women aged 65 and older living in the rural/urban commune in Central Poland were invited to the participation in the study...
April 10, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28389251/five-year-natural-history-of-screening-detected-sub-aneurysms-and-abdominal-aortic-aneurysms-in-70-year-old-women-and-systematic-review-of-repair-rate-in-women
#14
P Söderberg, A Wanhainen, S Svensjö
OBJECTIVE: The aim of this study was to report on the natural history of a population based cohort of 70 year old women with screening detected dilated aortas, and to systematically review publications reporting the rate of intact infrarenal aneurysm repair in women. MATERIAL AND METHODS: In a previous study, 5140 (74%) of 6925 invited women attended an ultrasound (US) examination of the abdominal aorta at age 70 years. All 52 women with screening detected sub-aneurysms (SA, diameter 25-29 mm) and abdominal aortic aneurysms (AAA, diameter ≥30 mm), were followed for 5 years with US...
April 4, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28386544/use-of-nanoparticles-as-contrast-agents-for-the-functional-and-molecular-imaging-of-abdominal-aortic-aneurysm
#15
REVIEW
Theophilus I Emeto, Faith O Alele, Amy M Smith, Felicity M Smith, Tammy Dougan, Jonathan Golledge
Abdominal aortic aneurysm (AAA) is a degenerative disease of the aorta common in adults older than 65 years of age. AAA is usually imaged using ultrasound or computed tomography. Molecular imaging technologies employing nanoparticles (NPs) have been proposed as novel ways to quantify pathological processes, such as inflammation, within AAAs as a means to identify the risk of rapid progression or rupture. This article reviews the current evidence supporting the role of NP-based imaging in the management of AAA...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28381870/cardiovascular-calcification-and-subcortical-bone-demineralization-in-hypertension
#16
Chiara Cirillo, Giancarlo Bilancio, Francesco Natale, Claudia Concilio, Maria Giovanna Russo, Paolo Calabrò, Massimo Cirillo
The present study investigated cardiovascular calcification, peripheral bone mineral density (BMD), and lab indices in hypertensive patients aged 55-74 years without severe kidney dysfunction. Cardiovascular calcification was investigated by ultrasound examinations at eight sites: aortic valve, left and right common carotid artery, left and right carotid artery bifurcation, left and right internal carotid artery, and abdominal aorta. The presence/absence of calcification at each site was coded as 1/0, respectively, for the calculation of a cumulative score...
April 6, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28375833/clinical-assessment-in-takayasu-s-arteritis-major-challenges-and-controversies
#17
REVIEW
Haner Direskeneli
Takayasu's arteritis (TAK) is a rare, chronic, large-vessel vasculitis (LVV) that predominantly affects aorta, its major branches and the pulmonary arteries. Recent controversial issues in the diagnosis, disease assessment and prognosis in TAK are discussed in this review. In recent years, conventional angiography, the standard method for the initial diagnosis, seems to have been replaced by the new imaging modalities, such as MRI and 18F-FDG-PET. Less invasive techniques (CT/MRI) are now suggested first, compared to conventional angiography, and MRI is preferable to CT with less contrast load/radiation...
March 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28366073/prophylactic-use-of-an-infrarenal-abdominal-aorta-balloon-catheter-in-pregnancies-complicated-by-placenta-accreta
#18
Lan Xie, Yan Wang, Fang-Yuan Luo, Yi-Cun Man, Xiao-Lan Zhao
This study evaluated the surgical and neonatal outcomes of 71 patients diagnosed with placenta accreta before caesarean section with or without placement of a prophylactic abdominal aorta balloon catheter. This study took place at our hospital from January 2013 to May 2015. Thirty patients had a prophylactic balloon catheter inserted (balloon group), and 41 patients did not receive the intervention (control group). The mean estimated blood loss and decrease in haemoglobin after surgery was significantly lower in the balloon group than in the control group...
April 1, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28362573/ultrasound-assessed-gastric-antral-area-correlates-with-aspirated-tube-feed-volume-in-enterally-fed-critically-ill-patients
#19
Vibhu Sharma, Deepthi Gudivada, Renaud Gueret, John Bailitz
BACKGROUND: Enteral tube feed (ETF) intolerance occurs frequently in hospitalized patients and more so in critically ill patients. Most critical care nurses continue to assess gastric residual volume (GRV), especially among those with a history of ETF intolerance. We hypothesized that ultrasound assessment of GRV correlates directly with aspirated tube feed volume. METHODS: This was a prospective cohort study of a convenience sample of critically ill mechanically ventilated patients admitted to an intensive care unit receiving ETF...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28356209/nutcracker-syndrome-an-update-on-current-diagnostic-criteria-and-management-guidelines
#20
REVIEW
K Ananthan, S Onida, A H Davies
BACKGROUND: Nutcracker syndrome (NCS) describes left renal vein compression between the superior mesenteric artery and the aorta. Although uncommon, it is an important diagnosis due to the important morbidity associated with it, including the risk of chronic kidney disease from long-term left renal vein (LRV) hypertension and the risk of LRV thrombosis. METHODS: This article reviews the literature on NCS, particularly with respect to the diagnostic accuracy of different imaging modalities and the success rates, complications, and long-term follow-up data associated with various surgical interventions...
March 26, 2017: European Journal of Vascular and Endovascular Surgery
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