3D visualization of strain in abdominal aortic aneurysms based on navigated ultrasound imaging

2007 ◽  
Author(s):  
Reidar Brekken ◽  
Jon Harald Kaspersen ◽  
Geir Arne Tangen ◽  
Torbjørn Dahl ◽  
Toril A. N. Hernes ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
3D Visualization ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Navigated Ultrasound

Measurement of abdominal aortic aneurysms with three-dimensional ultrasound imaging: Preliminary report

2001 ◽  
Vol 33 (4) ◽  
pp. 700-707 ◽  
Author(s):  
Daniel F. Leotta ◽  
Marla Paun ◽  
Kirk W. Beach ◽  
Ted R. Kohler ◽  
R.Eugene Zierler ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Preliminary Report ◽  
Three Dimensional ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic

scholarly journals Development of a Novel Index to Characterise Arterial Dynamics Using Ultrasound Imaging

2020 ◽  
Author(s):  
Joel Ward ◽  
Xinghao Cheng ◽  
Yingyi Xiao ◽  
Pierfrancesco Lapolla ◽  
Anirudh Chandrashekar ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
Ultrasound Imaging ◽  
Brachial Artery ◽  
Abdominal Aortic Aneurysms ◽  
Physical Characteristics ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Flow Mediated Dilatation ◽  
Aneurysm Growth ◽  
Relaxation Index

AbstractAbdominal aortic aneurysms (AAA) are associated with systemic inflammation and endothelial dysfunction. We previously reported flow mediated dilatation (FMD) of the brachial artery as a predictor of AAA growth. We hence hypothesised that other physical characteristics of the brachial artery correlate with AAA growth. Using a prospectively cohort of AAA patients, we devised a ‘brachial artery relaxation index’ (BARI) and examined its role as a biomarker for AAA growth. However, no correlation between BARI and future aneurysm growth was observed (p=0.5). Therefore, our investigations did not substantiate the hypothesis that other physical characteristics of the brachial artery predicts AAA growth.

scholarly journals Development of a novel index to characterise arterial dynamics using ultrasound imaging

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248043
Author(s):  
Joel Ward ◽  
Xinghao Cheng ◽  
Yingyi Xiao ◽  
Pierfrancesco Lapolla ◽  
Anirudh Chandrashekar ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
Ultrasound Imaging ◽  
Brachial Artery ◽  
Abdominal Aortic Aneurysms ◽  
Physical Characteristics ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Flow Mediated Dilatation ◽  
Aneurysm Growth ◽  
Relaxation Index

Abdominal aortic aneurysms (AAA) are associated with systemic inflammation and endothelial dysfunction. We previously reported flow mediated dilatation (FMD) of the brachial artery as a predictor of AAA growth. We hence hypothesised that other physical characteristics of the brachial artery correlate with AAA growth. Using a prospectively cohort of AAA patients, we devised a ‘brachial artery relaxation index’ (BARI) and examined its role as a biomarker for AAA growth. However, no correlation between BARI and future aneurysm growth was observed (p = 0.45). Therefore, our investigations did not substantiate the hypothesis that other physical characteristics of the brachial artery predicts AAA growth.

Abstract 106: Characterizing Aortic Wall Dynamics in Murine Models of Abdominal Aortic Aneurysms Using Ultrasound Imaging

2016 ◽  
Vol 36 (suppl_1) ◽  
Author(s):  
Arvin H Soepriatna ◽  
Frederick W Damen ◽  
Pavlos P Vlachos ◽  
Craig J Goergen
Keyword(s):  
Ultrasound Imaging ◽  
Abdominal Aorta ◽  
Circumferential Strain ◽  
Aortic Wall ◽  
Small Animal ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Matrix Remodeling ◽  
Ultrasound Technique ◽  
Abdominal Aortic

The objective of this study is to use non-invasive ultrasound imaging to characterize aortic wall dynamics in abdominal aortic aneurysms (AAAs). We induced AAAs (n=5) in apolipoprotein-E deficient mice by subcutaneously implanting an osmotic pump, which systemically delivers angiotensin II at a rate of 1000 ng/kg/min for 28 days, in the back of each mouse. Once aneurysm formations were confirmed using a high frequency small animal ultrasound system (Vevo2100, Visualsonics; 40 MHz central frequency), we implemented our cardiac- and respiratory-gated volumetric ultrasound technique to acquire 3D AAA geometries throughout a cardiac cycle. Figure 1 summarizes the results obtained from a representative mouse with a suprarenal AAA. A 3D volume rendering of an abdominal aorta, with the aneurysm positioned in the center, is illustrated next to a color bar, which provides position references for both the maximum circumferential Green-Lagrangian (GL) strain and the instantaneous strain plots. Qualitative inspections of both strain plots depicted in Figure 1 demonstrate that maximum GL circumferential strain occurs during systole and is smallest within the AAA. Quantitative assessments of GL circumferential strain for all five AAAs were performed with similar results indicating that maximum GL strain decreased significantly within the aneurysm (1.1±0.2%) compared to proximal (9.3±5.3%) and distal (4.0±2.1%) regions (p<0.05). This decrease in GL circumferential strain within the aneurysmal portion of the abdominal aorta corroborates the idea that an increase in vessel stiffness is associated with the degradation of elastin and increased collagen turnover in the AAA wall. Interestingly, in all five cases, we observed a stiffer distal region, when compared to regions proximal to the aneurysm, suggesting that AAA development may also contribute to extracellular matrix remodeling of the aortic wall downstream of the aneurysm site.

Ruptured abdominal aortic aneurysms: Clinical presentation in Auckland 1993-1997

2001 ◽  
Vol 71 (6) ◽  
pp. 341-344
Author(s):  
Johanna Rose ◽  
Ian Civil ◽  
Timothy Koelmeyer ◽  
David Haydock ◽  
Dave Adams
Keyword(s):  
Clinical Presentation ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic ◽  
Ruptured Abdominal Aortic Aneurysms

Current evidence and prospects for medical treatment of abdominal aortic aneurysms

VASA ◽  
2005 ◽  
Vol 34 (4) ◽  
pp. 217-223 ◽  
Author(s):  
Diehm ◽  
Schmidli ◽  
Dai-Do ◽  
Baumgartner
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Medical Treatment ◽  
Endovascular Treatment ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Current Evidence ◽  
Significant Morbidity ◽  
Abdominal Aortic ◽  
Risk Of Rupture

Abdominal aortic aneurysm (AAA) is a potentially fatal condition with risk of rupture increasing as maximum AAA diameter increases. It is agreed upon that open surgical or endovascular treatment is indicated if maximum AAA diameter exceeds 5 to 5.5cm. Continuing aneurysmal degeneration of aortoiliac arteries accounts for significant morbidity, especially in patients undergoing endovascular AAA repair. Purpose of this review is to give an overview of the current evidence of medical treatment of AAA and describe prospects of potential pharmacological approaches towards prevention of aneurysmal degeneration of small AAAs and to highlight possible adjunctive medical treatment approaches after open surgical or endovascular AAA therapy.

Statin therapy for patients with abdominal aortic aneurysms

VASA ◽  
2012 ◽  
Vol 41 (1) ◽  
pp. 3-4
Author(s):  
Diehm ◽  
Diehm ◽  
Dick
Keyword(s):  
Statin Therapy ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Abdominal Aortic

Endovascular management of ruptured abdominal aortic aneurysms and acute aortic dissections

VASA ◽  
2019 ◽  
Vol 48 (1) ◽  
pp. 35-46
Author(s):  
Stephen Hofmeister ◽  
Matthew B. Thomas ◽  
Joseph Paulisin ◽  
Nicolas J. Mouawad
Keyword(s):  
Abdominal Aortic Aneurysms ◽  
Rapid Identification ◽  
Aortic Aneurysms ◽  
Endovascular Interventions ◽  
Current State ◽  
Technological Advances ◽  
Abdominal Aortic ◽  
Ruptured Abdominal Aortic Aneurysms ◽  
Vascular Emergencies ◽  
Aortic Dissections

Abstract. The management of vascular emergencies is dependent on rapid identification and confirmation of the diagnosis with concurrent patient stabilization prior to immediate transfer to the operating suite. A variety of technological advances in diagnostic imaging as well as the advent of minimally invasive endovascular interventions have shifted the contemporary treatment algorithms of such pathologies. This review provides a comprehensive discussion on the current state and future trends in the management of ruptured abdominal aortic aneurysms as well as acute aortic dissections.

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