DAX: Deep Abdominal TransducerClarity at depth

The Deep Abdominal Transducer on ACUSON Sequoai

Why DAX?

Every patient deserves a definitive ultrasound, even when the exam is difficult. The DAX Deep Abdominal transducer for ACUSON Sequoia brings clarity at depth and consistent visualization of deep anatomy while reducing the force needed to scan.

In high-BMI and technically challenging cases, it helps elevate B-mode and Doppler performance and works seamlessly with advanced applications such as shear wave elastography, Ultrasound-derived Fat Fraction, and contrast-enhanced ultrasound. The result is a gentler exam, clearer answers, and decisions made with confidence.

Challenges

Radiology departments are often challenged by obesity and conventional technology that can limit diagnostic accuracy due to deep vessels, deep lesions, or severe disease.

It is estimated that obese patients (High Body Mass Index – BMI) are 1.65x more likely than others to have significant undiagnosed medical conditions. ^{2, 3}

Nearly 50% of all cancer patients younger than 65 were associated as overweight and obese.^2,3

Benefits

What clinicians gain

DAX transducer vs conventional ultrasound

Deeper penetration for difficult exams

Confidently image to a depth of up to 55 cm. Not only for high BMI/Obese patients, but also for difficult to scan patients with severe disease, deep lesions, or deep vasculature.

70%

Less scanning force

An ergonomic assessment showed approximately 70% less force was needed compared to a conventional abdominal transducer, helping reduce strain on sonographers and improving patient comfort.

Check out the study

Man receiving an abdominal ultrasound exam with the DAX transducer

Better B-mode and Doppler performance

A study found that the DAX provided the highest quality images in obese patients. In assessing multiple views across B-mode and color, up to 53% B-mode improvement and up to 73% color Doppler improvement was measured.¹

DAX Wide FOV to 100 degrees to image extended anatomy such as livers without having to use panoramic imaging.

Broader field of view when you need it

Wide FOV up to 100° helps visualize extended anatomy such as large livers without resorting to panoramic workflows.

Designed to reduce inconclusive results

DAX is optimized for high-BMI and technically difficult patients. It supports daily abdominal workflows and extends into vascular and liver assessments with confidence.

Evidence

Clinical impact at a glance

DAX transducer provides Confident Hemangioma diagnosis

ACUSON Sequoia with DAX clearly characterizes focal liver lesion on this patient eliminating the need for follow-up to another imaging modality. You can see in this patient that the depth is greatly increased all the way down to the dome of the liver.

Contrast imaging at depth

Combining CEUS with DAX improved characterization of a deep focal liver lesion, supporting a confident hemangioma diagnosis with sustained bubble longevity.

Clinical case study demonstrating the advantages of the DAX transducer in vascular assessment when compared to conventional transducer.

Portal vein evaluation

The DAX transducer confirmed a patent portal vein and removed the need for a follow-up CT scan for this patient.

Contrast imaging at depth

Combining CEUS with DAX improved characterization of a deep focal liver lesion, supporting a confident hemangioma diagnosis with sustained bubble longevity.

Contrast imaging at depth

Combining CEUS with DAX improved characterization of a deep focal liver lesion, supporting a confident hemangioma diagnosis with sustained bubble longevity.

Inter-transducer variability of ultrasound image quality in obese adults: Qualitative and quantitative comparisons
Maar, Megan et al.
Clinical Imaging, Volume 92, 63 - 71

https://jamanetwork.com/journals/jama/article-abstract/2656710

https://www.webmd.com/obesity/what-obesity-is