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aorta ultrasound

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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 27, 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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28332442/ultrasound-imaging-in-the-diagnosis-of-large-vessel-vasculitis
#13
Michael Czihal, Christian Lottspeich, Ulrich Hoffmann
Nowadays noninvasive vascular imaging has an important role in the diagnostic work-up of the large vessel vasculitides (LVV), most importantly giant cell arteritis (GCA) and Takayasu arteritis. Among the imaging modalities available, ultrasound (US) has several important advantages, including low costs, rapid and repetitive availability without exposure to radiation, and high spatial resolution for assessment of large and medium-sized arteries. Therefore, US can be regarded the first line imaging method in suspected LVV...
March 23, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28322421/ultrasound-screening-for-abdominal-aortic-aneurysms
#14
Stephan Engelberger, Raffaele Rosso, Manuela Sarti, Filippo Del Grande, Reto Canevascini, Jos C van den Berg, Giorgio Prouse, Luca Giovannacci
QUESTIONS UNDER STUDY: This pilot study aimed to assess the feasibility, acceptance and costs of an ultrasound scan screening programme for abdominal aortic aneurysms (AAA) in the elderly male population resident in Canton Ticino, Switzerland. METHODS: The target population were male patients aged 65-80 years who attended the outpatient clinics of the Lugano Regional Hospital in 2013. The patients showing interest were contacted by phone to verify their eligibility and fix the appointment for the ultrasound scan of the abdominal aorta...
March 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28287528/ultrasound-based-pulse-wave-velocity-evaluation-in-mice
#15
Nicole Di Lascio, Claudia Kusmic, Francesco Stea, Francesco Faita
Arterial stiffness can be evaluated by calculating pulse wave velocity (PWV), i.e., the speed with which the pulse wave travels in a conduit vessel. This parameter is being increasingly investigated in small rodent models in which it is used for assessing alterations in vascular function related to particular genotypes/treatments or for characterizing cardiovascular disease progression. This protocol describes an image processing algorithm which leads to non-invasive arterial PWV measurement in mice using ultrasound (US) images only...
February 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28285473/a-modern-case-series-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-reboa-in-an-out-of-hospital-combat-casualty-care-setting
#16
Justin D Manley, Benjamin J Mitchell, Joseph J DuBose, Todd E Rasmussen
BACKGROUND: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is used to mitigate bleeding and sustain central aortic pressure in the setting of shock. The ER-REBOA™ catheter is a new REBOA technology, previously reported only in the setting of civilian trauma and injury care. The use of REBOA in an out-of-hospital setting has not been reported, to our knowledge. METHODS: We present a case series of wartime injured patients cared for by a US Air Force Special Operations Surgical Team at an austere location fewer than 3km (5-10 minutes' transport) from point of injury and 2 hours from the next highest environment of care-a Role 2 equivalent...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28280627/minimally-invasive-ivor-lewis-esophagectomy-for-esophageal-cancer-with-right-aortic-arch
#17
Jeremy Linson, Michael Latzko, Bestoun Ahmed, Ziad Awad
Right aortic arch (RAA) is a rare congenital vascular abnormality in which the aorta descends in the right thorax and encircles the esophagus. Historically, esophagectomy for patients for RAA is done through a left thoracotomy as exposure and mobilization of the esophagus is difficult through a right thoracotomy. A 73-year-old male was found to have an esophageal adenocarcinoma. Endoscopic ultrasound showed a T3N0 lesion in the lower third of the esophagus. PET CT demonstrated a circumferential lesion without evidence of distant disease or involved lymph nodes and a RAA which was not associated with congenital heart disease or symptoms...
February 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28271001/fully-integrated-optical-coherence-tomography-ultrasound-and-indocyanine-green-based-fluorescence-tri-modality-system-for-intravascular-imaging
#18
Yan Li, Joseph Jing, Yueqiao Qu, Yusi Miao, Buyun Zhang, Teng Ma, Mingyue Yu, Qifa Zhou, Zhongping Chen
We present a tri-modality imaging system and fully integrated tri-modality probe for intravascular imaging. The tri-modality imaging system is able to simultaneously acquire optical coherence tomography (OCT), ultrasound (US), and fluorescence imaging. Moreover, for fluorescence imaging, we used the FDA-approved indocyanine green (ICG) dye as the contrast agent to target lipid-loaded macrophages. We conducted imaging from a male New Zealand white rabbit to evaluate the performance of the tri-modality system...
February 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28265729/quality-control-of-the-foot-revascularization-using-indocyanine-green-fluorescence-imaging
#19
Nicla Settembre, Petteri Kauhanen, Anders Albäck, Kristyna Spillerova, Maarit Venermo
OBJECTIVES: Critical limb ischemia (CLI) is a clinical diagnosis, confirmed by objective tests, usually ankle-brachial index (ABI), toe pressure (TP) and TcPO2. Furthermore, the anatomical lesions in patients affected by CLI were visualized by ultrasound, angiography, CTA, or MRA. Indocyanine green fluorescence imaging (ICG-FI) is a diagnostic modality for assessing foot perfusion. We aimed to study the usefulness of ICG-FI in the quality control of revascularization. MATERIALS AND METHODS: One hundred and four CLI limbs in 101 patients were studied with ICG-FI using SPY Elite before and after open or endovascular revascularization...
March 6, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28260559/umbilical-artery-histomorphometry-a-link-between-the-intrauterine-environment-and-kidney-development
#20
M J DeFreitas, D Mathur, W Seeherunvong, T Cano, C P Katsoufis, S Duara, S Yasin, G Zilleruelo, M M Rodriguez, C L Abitbol
Prematurity is a risk factor for hypertension, vascular stiffness, nephron deficit and adult onset cardiorenal disease. The vascular tree and kidneys share morphogenic drivers that promote maturation in utero before 36 weeks of gestation. Vascular elastin accrual terminates after birth leaving collagen to promote vascular stiffness. Our objective was to determine if the histomorphometry of the umbilical artery, an extension of the aorta, parallels nephron mass across gestational age groups. From a cohort of 54 newborns, 32 umbilical cord specimens were adequate for evaluation...
March 6, 2017: Journal of Developmental Origins of Health and Disease
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