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Vascular | The compression conundrum

Tracks
Rm 6 | Virtual
International Keynote
Vascular
Saturday, May 30, 2026
8:30 AM - 10:05 AM
Rm 6 | First Floor

Speaker

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Mrs Melissa Borg
Senior Sonographer
Southern Cross Vascular Ultrasound

From anatomy to haemodynamics: V flow imaging in type B aortic dissection

8:30 AM - 8:40 AM

Presentation Synopsis / Abstract

Introduction: Type B aortic dissection (TBAD) requires rapid and comprehensive vascular assessment to inform management and risk stratification. While conventional ultrasound delivers anatomical detail and Doppler-based haemodynamic insight, its limitations in resolving multidirectional flow and shear forces restrict clinical decision-making. Vector Flow (V Flow) imaging presents a major advancement for bedside ultrasound: enabling real-time visualization and quantification of complex flow patterns, velocity ratios, wall shear stress, and volumetric flow in true and false lumens.
Methods: This presentation reviews the utility of V Flow imaging in TBAD, presenting case-based videos and quantitative measurements from the latest Mindray system. V Results: Flow assessments reveal significant differences in systolic and diastolic flow patterns, entry tear hemodynamics, and localized wall shear stress between lumens. Technological strengths and practical limitations such as probe type and patient body habitus are discussed.
Conclusion/Take home message: Attendees will gain insights into how V Flow imaging enhances diagnostic confidence and provides new avenues for hemodynamic monitoring in acute aortic syndromes.

Biography

Mrs Melissa Borg | Southern Cross Vascular Ultrasound Melissa Borg is a vascular and general sonographer at Southern Cross Vascular Ultrasound in Sydney, Australia. She holds a master’s degree in vascular ultrasound and has more than 20 years’ experience in diagnostic imaging across both vascular and general ultrasound practice. Melissa has a strong interest in advanced haemodynamic assessment of aortic and peripheral vascular disease and in using ultrasound as a first‑line, real‑time diagnostic tool. Her recent work focuses on the clinical application of Mindray’s V Flow technology for Type B aortic dissection, including the development of a structured protocol and comparison with 4D MRI flow imaging. She is passionate about clear visual communication, continual learning, and integrating advanced imaging techniques into everyday clinical practice.
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Ms Deb Coghlan
Technical Director
Precision Vascular Imaging

When anatomy becomes pathology: Ultrasound assessment of SMA compression

8:40 AM - 9:00 AM

Presentation Synopsis / Abstract

Superior mesenteric artery (SMA) syndrome (compression) and median arcuate ligament syndrome (MALS) represent uncommon but clinically significant vascular compression syndromes in which normal or variant anatomy becomes pathological. This presentation reviews the relevant mesenteric and coeliac axis anatomy, focusing on how aberrant angulation, ligamentous insertion, and body habitus contribute to symptomatic compression. Ultrasound assessment techniques are discussed in detail, including velocity criteria, aorto-mesenteric angle and distance measurements, respiratory and positional variation, and waveform analysis. Areas of ongoing controversy—particularly diagnostic thresholds, reproducibility, and the discordance between imaging findings and symptoms—are highlighted, with an emphasis on practical pitfalls and reporting strategies for sonographers.

Biography

Ms Deb Coghlan | Precision Vascular Imaging Deb Coghlan is a Senior Vascular Sonographer working in her own practice at Precision Vascular Imaging in Brisbane. Deb has extensive experience in all areas of Vascular imaging. Deb has been presenting at local and international conferences for over 35 years and has a passion for training and education.
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Prof Akram Asbeutah, AFASA
Professor
Kuwait University

Intima-media thickness measurement by manual & automated ultrasound imaging

9:00 AM - 9:10 AM

Presentation Synopsis / Abstract

Introduction:Carotid intima-media thickness (IMT) is a well-established non-invasive surrogate marker of atherosclerosis. Risk factors like diabetes mellitus, hypertension, hyperlipidemia, smoking, and lifestyles accelerates vascular thickening, but comparative data on manual versus automatic IMT measurement methods across imaging planes remain limited. Methods:The IMT was assessed by manual measurements and with the newly developed B-mode ultrasound IMT measurement software. Approximately 30 young healthy male volunteers from Health Sciences students were included in the study. The manual measurements of the CCA-IMT were performed using the automated range calibrated trackball on the scanner approximately 10 mm proximal to the carotid bulb. The manual IMT measurement was taken by one operator and the automated IMT measurement was taken by another operator blinded to other operator. The average of three measurements was taken. The intra-and inter-observer reliability of the automatic detection and manual measurements were analysed. Results: 20 healthy volunteers underwent IMT US imaging by manual and automated measurements. Mean age was 22±3.39 years. Mean body mass index was 25.41±4.28. Mean IMT manual measurements for right and left CCA sides were 0.67±0.12, 0.69±0.11;and automated 0.47±0.05, 0.47±0.06;respectively. Independent samples t-test showed significant differences between the IMT thickness measurement by manual and automated methods for the right side and for the left side (P<.001). Paired t-tests showed no statistical significance between the same type of measurement on each side(P>.05). Conclusions:Carotid IMT measurement using automated software provided reproducible results compared to manual method. Take home message:These findings support expanded use of automated IMT assessment in clinical vascular screening.

Biography

Prof Akram Asbeutah | Kuwait University Akram’s career in ultrasound spans 20 years and he is one of Australia’s most highly regarded sonographers especially in the field of vascular and musculoskeletal ultrasound. Akram obtained his Bachelor of radiologic sciences in 1986 from Kuwait University-Faculty of Allied Health Sciences and then obtained his master’s degree in Anatomy from Kuwait University-Faculty of Medicine in 1994 then he completed examinations in the Diploma of Medical Ultrasound (General) in Australia and as a Registered Technologist in the USA. In 2006 Akram completed his PhD thesis at Monash University entitled “What makes the veins incompetent”? Which identified a previously unreported pattern of varicose veins as well as establishing the prevalence of several less recognized causes of venous disease. Akram’s wealth of knowledge as well as his passion and enthusiasm for research and education are reflected in his highly regarded presentations. Since 2002 Akram providing comprehensive training in radiologic Imaging, Musculoskeletal and Vascular Ultrasound Imaging in a clinical environment. He is currently holding a clinical professor position at Department of Radiologic Sciences, Faculty of Allied Health Sciences, Kuwait University. Also, he is appointed as an adjunct clinical professor to Monash University, Faculty of Medicine, Department of Medical Imaging and Radiation Sciences from 1/6/2014 till present. Akram presents regularly at national and international meetings and has published a number of papers.
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Mr Nathan Gallagher
Vascular Sonographer
The Cardiovascular Centre

Fibromuscular dysplasia: Ultrasound features and documentation

9:10 AM - 9:20 AM

Presentation Synopsis / Abstract

Introduction: Fibromuscular dysplasia is a clinically significant, non-atherosclerotic arterial disease that has been reported in most arterial beds commonly assessed with Duplex ultrasound. Despite this, the condition remains poorly understood by some sonographers and referrers, which can lead to misdiagnosis or inappropriate management.
Methods: This presentation will review the ultrasound features of fibromuscular dysplasia, including characteristic velocity changes, flow disturbance, vessel tortuosity, and arterial beading, along with key probe selection and patient positioning considerations. Current literature recommendations for disease description and reporting will also be discussed.
Results and Conclusion: The understanding of fibromuscular dysplasia continues to evolve, adopting a contemporary approach to identification, description, and reporting is important to support accurate diagnosis and optimal patient management.

Biography

Mr Nathan Gallagher | The Cardiovascular Centre Nathan is a vascular sonographer with a background in radiography, practising in Newcastle, NSW. His professional interests include the standardisation of vascular ultrasound methods and advancing disease understanding and optimal scanning techniques.
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Moment of Movement
ASA

Session 4 Moment of Movement | Q&A (pending run time)

9:20 AM - 9:30 AM

Biography

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Mrs Annabel Orford
Head Sonographer
Western NSW Health

Symptomatic steal syndrome in arterio-venous fistulas

9:30 AM - 9:40 AM

Presentation Synopsis / Abstract

Introduction: An arterio- Venous Fistula (AVF) is a connection between a vein and an artery, either intentional (man-made) or unintentional (formed by itself in the body thanks to trauma/pathology etc). A dialysis access AVF is created to provide a vessel for haemodialysis access in patients with end stage renal failure. An arterial steal is when we see reverse flow in the artery inferiorly to the anastomosis. Most AVFs that are more than 1 year old will have reversed flow inferior to the anastomosis and most will be asymptomatic. The ones we will focus on are the ones that become symptomatic.
Method: Patients were referred by renal physicians due to their symptoms, which included, cold hand/s with colour change to white or blue, pain during dialysis or during exercise, pain in the hand or arm while resting or in extreme cases, ulcers, necrotic tissue, gangrene. These patients were scanned using our protocol which I will go into more detail on in the presentation, with a focus on the measurements taken when assessing steal syndrome.
Results: 3 case studies showing the sonographic features of symptomatic steal syndrome including ulcerated fingers, colour change in the hands and ulcers.
Discussing measurements, where to take them and how to interpret them.
Conclusions: What to look for in when scanning these patients and how to interpret the sonographic features.
Take home message: Tips to make this scan easier and the key points.

Biography

Mrs Annabel Orford | Western NSW Health Head sonographer and student supervisor at Dubbo Base Hospital with a keen interest in Vascular ultrasound. Currently undertaking a higher degree by research through Western Sydney University focussing on Arterio-venous fistulas. Masters degree from University of South Australia in general sonography.
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Ms Jill Sommerset
Director of Ultrasound
HOPE Vascular & Podiatry

Pelvic venous disorders - PeVD

9:40 AM - 10:00 AM

Presentation Synopsis / Abstract

This presentation introduces a focused, transabdominal duplex ultrasound approach to efficiently evaluate patients with suspected pelvic venous disorders.

Emphasis is placed on practical scanning techniques to assess the left renal vein for compression, ovarian veins for dilation and reflux, and the iliac veins for hemodynamically significant compression. Doppler waveform analysis, flow direction, velocity changes, and respiratory variation are used to distinguish normal physiologic findings from clinically relevant venous pathology.

By integrating anatomy with physiologic Doppler assessment, this targeted approach allows vascular sonographers to rapidly identify disease patterns, guide appropriate downstream imaging, and support procedural planning. This streamlined, protocol-driven strategy delivers clinically actionable information to the care team and improves diagnostic confidence in the evaluation of pelvic venous disorders.

Biography

Ms Jill Sommerset | Hope Vascular & Podiatry Jill Sommerset, RVT, FSVU, is a vascular technologist with 26 years of experience in advanced vascular ultrasound and limb preservation. Currently she is the director of ultrasound at Advanced Vascular Centers and HOPE Vascular & Podiatry. She is also the director of Clinical Education and Training at Aveera Medical. She is known for developing Pedal Acceleration Time (PAT). Jill is also an international speaker recognized for her contributions to vascular ultrasound and improving patient outcomes.
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Q&A Time
ASA

Session 4 Presenters (pending run time)

10:00 AM - 10:15 AM

Biography

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