Bio-MedXBiomedical Engineering & Technology
Black sonographer performing an examination on a Black female patient with an ultrasound platform

BUYER’S GUIDE / ULTRASOUND

Choosing an ultrasound system: applications, probes and total cost

A practical framework to link the clinical programme, transducers, imaging functions, workflow and maintenance.

UltrasoundBuyingDiagnostics
BM-X / 01

The console alone does not define the right configuration.

An ultrasound system becomes truly useful when its probes, software, ergonomics and support match the examinations performed. Two systems in a comparable range can produce very different results depending on the patient population, the operator, the installed options and the quality of maintenance.

01 / CLINICAL NEED

Start with the examinations, the patients and the operators

Describe the daily volume, the specialties, the level of urgency, the patient profiles and the users’ experience. A general radiology department, a maternity unit, an echocardiography laboratory and an emergency unit do not have the same probes, nor the same requirements for measurement, mobility and archiving.

Sort functions into three categories: essential at opening, useful in the medium term, and optional. This hierarchy prevents overpaying for rarely used licences while protecting the upgrades that are genuinely planned.

01

Abdomen & pelvis

Liver, biliary tract, kidneys, spleen, bladder and pelvis. Penetration, tissue harmonic imaging, Doppler and a suitable convex probe are the priorities.

02

Obstetrics & gynaecology

Dating, growth, foetal morphology and pelvic examination. Depending on the programme: convex, endovaginal and 3D/4D volume probes.

03

Cardiology

Ventricular function, valves, haemodynamics and follow-up. This requires a phased array probe, M-mode, and colour, pulsed and often continuous-wave Doppler.

04

Vascular

Arteries, veins, stenoses, thrombosis and vascular access. A linear probe, spectral Doppler and sensitivity to low flow are decisive.

05

Breast, thyroid & small parts

Superficial structures requiring high frequency, excellent contrast resolution and, depending on use, elastography.

06

Musculoskeletal

Tendons, muscles, joints, nerves and guided procedures. Superficial resolution, frame rate and an ergonomic linear probe matter greatly.

07

Paediatrics & neonatology

Higher frequencies and small-footprint probes make it easier to examine newborns, children and narrow anatomical windows.

08

Emergency, critical care & POCUS

Focused assessment of the heart, lungs, abdomen and volume status, plus procedural guidance. Fast start-up, battery life and simple cleaning are essential.

02 / SYSTEM FORMAT

Choose mobility without sacrificing usability

Cart-based console

Examination comfort, large screen, several active ports and a wide choice of options. Suited to busy departments and complex examinations.

Compact or “laptop”

A good compromise for travel, clinics, the operating theatre and multi-site facilities. Check battery life, durability and connectivity.

Ultraportable / handheld

Quick access at the bedside and in the field. It often complements a fleet but does not automatically replace a full diagnostic platform.

Dedicated platform

Cardiac, women’s health or another specialty: the interface, calculations, reports and probes can be optimised for a specific care pathway.

Examples of 3D/4D volume, linear, convex, phased array, endovaginal and microconvex probes
The probe’s shape, frequency and application must be validated together. Illustration of common families; designs vary between manufacturers.
03 / TRANSDUCERS

The probe is a central part of performance

A higher frequency generally improves the resolution of superficial structures, whereas a lower frequency favours penetration. The choice also depends on footprint, field of view, anatomical access, ergonomics and supported modes.

FamilyTypical frequencyApplicationsWatch point
Convex / curvilinear≈ 2–6 MHzAbdomen, obstetrics, pelvis

Good penetration and a wide field at depth.

Linear≈ 5–18 MHzVascular, MSK, breast, thyroid, procedures

High superficial resolution; penetration decreases as frequency increases.

Sector / phased array≈ 1–5 MHzHeart, chest, transcranial depending on configuration

Small footprint useful between the ribs and good access to deep structures.

Endocavity≈ 4–10 MHzGynaecology, early obstetrics, prostate

Close to the target; requires high-level disinfection and suitable covers.

Microconvex≈ 3–10 MHzPaediatrics, neonatal, abdomen, narrow windows

Combines a small footprint, a convex field and versatility.

3D/4D volume≈ 2–8 MHzObstetrics, gynaecology, sometimes cardiac

Volume acquisition; check software, storage and reconstruction time.

Transoesophageal (TOE)≈ 3–8 MHzAdvanced cardiology, operating theatre

Specialised, costly and fragile probe; strict reprocessing and traceability.

CW Doppler pencil probe≈ 2–5 MHzHigh-velocity flows and haemodynamic measurements

Continuous-wave Doppler without a 2D image on some systems; useful for high velocities.

Never compare just the number of probes.

Ask for the exact references, their compatibility with the system, the available modes, the warranty, the replacement cost and whether they can be tested on your clinical cases.

04 / MODES & SOFTWARE

Turn options into clinical requirements

Core imaging

B-mode, M-mode, tissue harmonic imaging, zoom, cine, measurements and automatic optimisation form the foundation of most examinations.

Doppler

Colour, power, pulsed and continuous-wave Doppler meet different needs. Check sensitivity, artefacts, frame rate and ease of adjustment.

Tissue characterisation

Elastography, liver quantification and contrast can enrich certain services, but require training, protocols and suitable licences.

Volume & automation

3D/4D, automated measurements, plane recognition and assisted tools can improve reproducibility when they are integrated into the real clinical workflow.

Interventional

Needle enhancement, CT/MR fusion, navigation and contrast can be decisive for biopsies, ablations and guided procedures.

Reporting & data

DICOM worklist, PACS storage, export, report templates, traceability and cybersecurity must be specified before purchase.

05 / PLATFORM EXAMPLES

Compare several manufacturers on the same protocol

The examples below illustrate different families of systems. They are neither a ranking nor an exclusive recommendation. The availability of probes, software and services depends on the country, the version and the configuration sold.

GE HealthCare LOGIQ E10s, example of an ultrasound platform
GE HealthCare

LOGIQ E10s

Example of a high-end general-purpose platform: abdominal, vascular, small-parts and interventional imaging, with advanced tools depending on configuration.

View manufacturer’s overview ↗
Philips EPIQ Elite, example of an ultrasound platform
Philips

EPIQ Elite

Example of a premium multispecialty platform with probe families and functions suited to radiology, vascular, cardiac and OB/GYN.

View manufacturer’s overview ↗
Siemens Healthineers ACUSON Sequoia, example of an ultrasound platform
Siemens Healthineers

ACUSON Sequoia

Example of a shared-service system geared towards advanced imaging, notably for the deep abdomen, elastography, contrast and cardiovascular, depending on options.

View manufacturer’s overview ↗
Canon Medical Aplio i-series, example of an ultrasound platform
Canon Medical

Aplio i-series

Example of a versatile platform combining general imaging, Doppler, microvascular imaging, elastography and interventional guidance, depending on licences.

View manufacturer’s overview ↗
Mindray Resona I9, example of an ultrasound platform
Mindray

Resona I9

Example of a general-purpose system emphasising ergonomics, mobility, automation and an expandable set of clinical applications.

View manufacturer’s overview ↗
06 / CLINICAL TRIAL

Test with your users and your difficult cases

A convincing demonstration should use representative patients, examinations that are actually performed and the probes offered in the quotation. Have several operators assess penetration, resolution, Doppler, measurement reproducibility, examination time and ergonomics.

Image quality by applicationTime to usable imageErgonomics and operator fatigueEase of cleaningReporting and connectivityTraining required
07 / INSTALLATION & WORKFLOW

Prepare the room, the network and the data pathway

Ultrasound requires less building work than a CT scanner, but the environment remains decisive: stable power supply, network sockets, suitable air conditioning, circulation space, lighting, privacy, access to handwashing and protected probe storage.

Before delivery, validate the DICOM addresses, worklist, PACS, report formats, user accounts, backups, updates, remote access and cybersecurity policy. A function listed in the brochure is only useful if it is enabled, tested and integrated.

08 / HYGIENE & SAFETY

Match each probe to its reprocessing protocol

The level of cleaning or disinfection depends on how the probe is used and on patient contact. Endocavity probes and interventional procedures require higher precautions than external ultrasound on intact skin. The products used must remain compatible with the manufacturer’s instructions.

Regularly inspect the acoustic lens, housing, cable, connector and covers. A damaged probe can degrade the image, pose an electrical risk or promote contamination. Use the appropriate gel and sheaths, with traceability that complies with local procedures.

Precautionary principle

Ultrasound does not use ionising radiation, but acoustic exposure must remain justified and optimised. Trained users monitor, in particular, the thermal and mechanical indices according to the examination.

09 / TOTAL COST & MAINTENANCE

Budget for the probes as much as for the console

The cost of ownership includes the system, probes, software, accessories, network integration, training, updates, quality control, maintenance and downtime. Probes are among the components most exposed to impacts, twisting, fluid ingress and incompatible cleaning products.

Console, cart, battery and screensInitial and future probesClinical licences and updatesDICOM, PACS and cybersecurityGel, sheaths and consumablesInitial and refresher trainingAcceptance testing and quality controlWarranty, maintenance and loan equipment
10 / SUPPLIER QUESTIONS

Eight questions before signing

  1. Which applications and examinations will actually be performed from the first year?
  2. Which probes, licences, measurements and functions are included in the quoted price?
  3. Has image quality been assessed on our patients and our priority clinical cases?
  4. Does the system integrate with the network, DICOM, PACS, the worklist and cybersecurity requirements?
  5. What are the warranty terms for the console and for each probe?
  6. Who provides installation, applications training and maintenance, and what are the response times?
  7. Which cleaning products are compatible with the console and each probe type?
  8. What budget should be planned for probes, batteries, licences, carts, printers and accessories over five years?
11 / UNDERSTANDING ULTRASOUND

See the technology in action

This video complements the guide with a visual introduction to ultrasound. It plays right here, without leaving Bio-MedX.

12 / SOURCES & LIMITATIONS

Reference points to adapt to the clinical context

Final requirements must be validated with the users, biomedical engineering, infection control, IT, the manufacturer and the competent authorities. The brands mentioned serve only as examples of platforms available on the market.

BM-X / ULTRASOUND

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