Ultrasound for gynaecology: which probes does the practice need?
Insights
Dr. Henri Hagenmüller
Posted on
Introduction
Convex, endocavity, volume or linear? Which probes a gynaecology and obstetrics practice needs, with the Samsung HERA Z20 probe range and nominal frequencies. By Meditron, Samsung Healthcare partner in Switzerland since 2012.
In short: A gynaecology and obstetrics practice usually works with three kinds of probe: a convex probe for the abdomen and pregnancy, an endocavity probe for gynaecological and early-pregnancy examinations, and, if you scan fetal anatomy in 3D/4D, volume versions of both. A linear probe adds breast. The probes decide what you can examine and a large share of the quote, so choose them before the console. This overview from Meditron SA, Samsung Healthcare's partner in Switzerland, goes through the probe types and the transducers listed for the Samsung HERA Z20.
Key takeaways
Start from your examinations, not from the console: the probe list follows from them.
A convex and an endocavity probe cover the routine; volume probes add 3D/4D; a linear probe adds breast.
The HERA Z20 has four active probe ports and lists seven transducers: three convex types, three endocavity types and one linear.
The two numbers in a Samsung probe code are the nominal frequency range in MHz, which helps you compare probes at a glance.
Meditron confirms the probe set for each configuration in the quote; replacement and additional probes are quoted on request.
Last reviewed: November 2026. Author: Dr. Henri Hagenmüller, Managing Director.
Which probe types does a gynaecology practice use?
Probe type | Used for | Samsung examples (nominal range) |
|---|---|---|
Convex (curved array) | Abdomen, obstetrics, gynaecology | CA1-7Sv2 (1 to 7 MHz), CA3-10A (3 to 10 MHz) |
Volume convex (3D/4D) | Fetal imaging in 3D/4D, plus routine 2D abdominal and obstetric scanning | CV1-8A (1 to 8 MHz) |
Endocavity | Gynaecology, early pregnancy, urology | EA2-11AR (2 to 11 MHz) |
Volume endocavity (3D/4D) | Early pregnancy, fetal brain, gynaecological volume imaging | EA2-11AV (2 to 11 MHz), EV2-12 (2 to 12 MHz) |
Linear | Breast, thyroid, small parts, MSK, vessels | LM2-18 (2 to 18 MHz) |
The applications are those given in Samsung's published transducer lists and on the Meditron probe pages, for example the CA1-7Sv2, EA2-11AR and LM2-18. The frequency ranges are nominal, read from the model code as in Samsung's own transducer guides.
The convex probes: abdomen and pregnancy
The CA1-7Sv2 is Samsung's wide-band S-Vue convex transducer for abdominal and obstetric scanning. The low-frequency end gives depth, the single-crystal design keeps detail in the near field, and it is the standard abdominal and obstetric probe on the HERA Z20. The CA3-10A is a higher-frequency convex probe for detailed anatomy where depth is less of a constraint, listed for obstetrics, gynaecology, paediatrics, thoracic, urology, MSK and vascular use. It is one of the most widely shared probes in the Samsung range.
The endocavity probes: gynaecology and early pregnancy
For gynaecological and early-pregnancy examinations the EA2-11AR is the slim 2D endocavity probe. The EA2-11AV is its volume counterpart, and the EV2-12 is Samsung's S-Vue volume endocavity transducer with a wider bandwidth, listed for gynaecology, obstetrics and urology. If you do not work in 3D/4D, the 2D endocavity probe is the one to specify; if you do, say so early, because the volume probes change the quote.
Do I need 3D/4D?
Only if your examinations use volume imaging, for example fetal anatomy in 3D/4D. The volume convex CV1-8A drives the HERA Z20's volume tools, including RealisticVue, CrystalVue and the 5D applications, and also covers routine 2D abdominal and obstetric scanning. The volume endocavity probes pair with the 5D CNS+ and volume tools. Meditron suggests listing the volume examinations you actually perform per week, then deciding; the probes can be added later on request.
The linear probe: breast and small parts
The LM2-18 is a high-frequency S-Vue linear probe for breast, thyroid and small-parts imaging. On a women's health system such as the HERA Z20 it covers breast examinations without changing system.
What does a typical starting set look like?
A typical obstetrics and gynaecology configuration on the HERA Z20 uses a convex, a volume convex and an endocavity probe. With four active ports, up to four probes can be connected at once, so the set can grow to include a second endocavity or a linear probe. Which combination fits depends on your examinations and on the system: the HERA Z20 is Samsung's premium system for women's health, while the V8 is the recommendation when one system also has to cover general imaging. HERA Z20 or V8 compares the two. Probe sets for other systems are confirmed by Meditron for each configuration.
How does Meditron help with the probe decision?
Meditron configures the probe set for your specialty, delivers and installs it with the system, and services it from Rolle and Frauenfeld in German, French and Italian. In a demonstration at your practice the shortlisted probes are tried on your usual cases, so the choice is made with the real handling in hand. See also service, training and warranty.
Next step
Book a demo in your practice. Related: Samsung HERA Z20 or V8: which ultrasound system for gynaecology?. Overview of all models: Samsung ultrasound at Meditron.
Sources: Samsung Healthcare HERA Z20 transducer list and transducer guides (frequency convention); Samsung HERA Z20 product information as listed on meditron.ch; Meditron SA sales and applications practice.
Author: Dr. Henri Hagenmüller, Managing Director, Meditron SA. Reviewed by: Nikita Müller, Sales Consultant Ultrasound. Last updated: November 2026.
Frequently asked questions
Let’s Talk
Have a question, need a quote, or want to book a demo? We’re here to help.
info@meditron.ch
+41 22 995 01 91
Place de l'Industrie 2, 1180 Rolle Schönenhofstrasse 19, 8500 Frauenfeld
Ultrasound for gynaecology: which probes does the practice need?
Insights
Dr. Henri Hagenmüller
Posted on
Introduction
Convex, endocavity, volume or linear? Which probes a gynaecology and obstetrics practice needs, with the Samsung HERA Z20 probe range and nominal frequencies. By Meditron, Samsung Healthcare partner in Switzerland since 2012.
In short: A gynaecology and obstetrics practice usually works with three kinds of probe: a convex probe for the abdomen and pregnancy, an endocavity probe for gynaecological and early-pregnancy examinations, and, if you scan fetal anatomy in 3D/4D, volume versions of both. A linear probe adds breast. The probes decide what you can examine and a large share of the quote, so choose them before the console. This overview from Meditron SA, Samsung Healthcare's partner in Switzerland, goes through the probe types and the transducers listed for the Samsung HERA Z20.
Key takeaways
Start from your examinations, not from the console: the probe list follows from them.
A convex and an endocavity probe cover the routine; volume probes add 3D/4D; a linear probe adds breast.
The HERA Z20 has four active probe ports and lists seven transducers: three convex types, three endocavity types and one linear.
The two numbers in a Samsung probe code are the nominal frequency range in MHz, which helps you compare probes at a glance.
Meditron confirms the probe set for each configuration in the quote; replacement and additional probes are quoted on request.
Last reviewed: November 2026. Author: Dr. Henri Hagenmüller, Managing Director.
Which probe types does a gynaecology practice use?
Probe type | Used for | Samsung examples (nominal range) |
|---|---|---|
Convex (curved array) | Abdomen, obstetrics, gynaecology | CA1-7Sv2 (1 to 7 MHz), CA3-10A (3 to 10 MHz) |
Volume convex (3D/4D) | Fetal imaging in 3D/4D, plus routine 2D abdominal and obstetric scanning | CV1-8A (1 to 8 MHz) |
Endocavity | Gynaecology, early pregnancy, urology | EA2-11AR (2 to 11 MHz) |
Volume endocavity (3D/4D) | Early pregnancy, fetal brain, gynaecological volume imaging | EA2-11AV (2 to 11 MHz), EV2-12 (2 to 12 MHz) |
Linear | Breast, thyroid, small parts, MSK, vessels | LM2-18 (2 to 18 MHz) |
The applications are those given in Samsung's published transducer lists and on the Meditron probe pages, for example the CA1-7Sv2, EA2-11AR and LM2-18. The frequency ranges are nominal, read from the model code as in Samsung's own transducer guides.
The convex probes: abdomen and pregnancy
The CA1-7Sv2 is Samsung's wide-band S-Vue convex transducer for abdominal and obstetric scanning. The low-frequency end gives depth, the single-crystal design keeps detail in the near field, and it is the standard abdominal and obstetric probe on the HERA Z20. The CA3-10A is a higher-frequency convex probe for detailed anatomy where depth is less of a constraint, listed for obstetrics, gynaecology, paediatrics, thoracic, urology, MSK and vascular use. It is one of the most widely shared probes in the Samsung range.
The endocavity probes: gynaecology and early pregnancy
For gynaecological and early-pregnancy examinations the EA2-11AR is the slim 2D endocavity probe. The EA2-11AV is its volume counterpart, and the EV2-12 is Samsung's S-Vue volume endocavity transducer with a wider bandwidth, listed for gynaecology, obstetrics and urology. If you do not work in 3D/4D, the 2D endocavity probe is the one to specify; if you do, say so early, because the volume probes change the quote.
Do I need 3D/4D?
Only if your examinations use volume imaging, for example fetal anatomy in 3D/4D. The volume convex CV1-8A drives the HERA Z20's volume tools, including RealisticVue, CrystalVue and the 5D applications, and also covers routine 2D abdominal and obstetric scanning. The volume endocavity probes pair with the 5D CNS+ and volume tools. Meditron suggests listing the volume examinations you actually perform per week, then deciding; the probes can be added later on request.
The linear probe: breast and small parts
The LM2-18 is a high-frequency S-Vue linear probe for breast, thyroid and small-parts imaging. On a women's health system such as the HERA Z20 it covers breast examinations without changing system.
What does a typical starting set look like?
A typical obstetrics and gynaecology configuration on the HERA Z20 uses a convex, a volume convex and an endocavity probe. With four active ports, up to four probes can be connected at once, so the set can grow to include a second endocavity or a linear probe. Which combination fits depends on your examinations and on the system: the HERA Z20 is Samsung's premium system for women's health, while the V8 is the recommendation when one system also has to cover general imaging. HERA Z20 or V8 compares the two. Probe sets for other systems are confirmed by Meditron for each configuration.
How does Meditron help with the probe decision?
Meditron configures the probe set for your specialty, delivers and installs it with the system, and services it from Rolle and Frauenfeld in German, French and Italian. In a demonstration at your practice the shortlisted probes are tried on your usual cases, so the choice is made with the real handling in hand. See also service, training and warranty.
Next step
Book a demo in your practice. Related: Samsung HERA Z20 or V8: which ultrasound system for gynaecology?. Overview of all models: Samsung ultrasound at Meditron.
Sources: Samsung Healthcare HERA Z20 transducer list and transducer guides (frequency convention); Samsung HERA Z20 product information as listed on meditron.ch; Meditron SA sales and applications practice.
Author: Dr. Henri Hagenmüller, Managing Director, Meditron SA. Reviewed by: Nikita Müller, Sales Consultant Ultrasound. Last updated: November 2026.
Frequently asked questions
Let’s Talk
Have a question, need a quote, or want to book a demo? We’re here to help.
info@meditron.ch
+41 22 995 01 91
Place de l'Industrie 2, 1180 Rolle Schönenhofstrasse 19, 8500 Frauenfeld