Uterus & uterine shape
Size, position, contour and congenital configuration, including features suggesting septate, bicornuate, arcuate or didelphys uterus.
Advanced gynaecological imaging • London & St Albans
Private 3D pelvic ultrasound scan
A detailed 2D and 3D assessment of the uterus, endometrium, cervix, ovaries and adnexa, with colour or Power Doppler when clinically indicated and optional transvaginal imaging for the highest-resolution views.
- Self-referral available
- 2D + 3D volume imaging
- Clear written report
Clinical illustration only — 3D ultrasound reconstructs a volume dataset and true coronal uterine views.
Private 3D pelvic scan£2692D + 3D assessment
2D + 3D imagingHigh-resolution survey plus multiplanar volume reconstruction
Optional internal scanTransvaginal imaging is explained and consented before examination
Doppler when indicatedAssessment of relevant blood-flow patterns and lesion vascularity
25–40 minutesVerbal impressions with a structured written report
About the examination
What is a 3D pelvic ultrasound?
A 3D pelvic ultrasound is an advanced gynaecological examination that combines standard two-dimensional imaging with a volume acquisition of the pelvis. The dataset can be reconstructed in multiple planes, including the true coronal plane of the uterus, which is difficult to obtain with conventional 2D imaging alone.
This additional structural view can improve assessment of uterine shape, the endometrial cavity, fibroids that distort the cavity, suspected polyps, Caesarean scar niches, IUD position and selected fertility-related questions.
The uterus, endometrium, cervix, ovaries and adnexa are assessed. Fallopian tubes are not normally visible unless abnormal or fluid-filled, and no ultrasound can exclude every pelvic condition.
Detailed pelvic assessment
What the scan can evaluate
The examination is tailored to your symptoms, menstrual cycle, fertility history, previous imaging and clinical question.
Endometrium & cavity
Endometrial thickness and contour, with 3D views supporting assessment for focal polyps or intracavitary distortion.
Fibroid mapping
Number, size and location of visible fibroids, including submucosal components and their relationship to the uterine cavity.
Adenomyosis features
Myometrial asymmetry, cysts, echogenic lines, fan-shaped shadowing and junctional-zone irregularity where visible.
Ovaries & adnexa
Ovarian volumes, follicles, cyst characterisation, adnexal masses and visible fluid-filled tubes such as hydrosalpinx.
IUD or coil position
Assessment of fundal position, low position, rotation and features that may suggest embedment in the uterine wall.
Cervix & scar niche
Cervical appearance and selected assessment of a Caesarean scar niche or uterine wall defect when clinically relevant.
Doppler assessment
Colour or Power Doppler may be used to assess vascularity in polyps, fibroids, ovarian lesions or other findings.
Important: A routine 3D pelvic scan does not automatically include a full deep-endometriosis mapping protocol, follicle-tracking series, saline infusion sonography or early-pregnancy viability assessment unless specifically booked.
Imaging methods
2D, 3D and Doppler—what each adds
Detailed first-line assessment
High-resolution slices assess the uterus, endometrium, ovaries and adnexa. This remains the foundation of the pelvic examination.
Structural and coronal views
A stored volume enables multiplanar reconstruction and a true coronal uterine plane, helping define cavity shape and uterine anomalies.
Relevant blood-flow information
Doppler may help assess a polyp feeding vessel, fibroid perfusion or vascularity associated with an adnexal lesion.
3D pelvic
volume imaging
volume imaging
2D survey • 3D reconstruction • Doppler
When it may help
Common reasons to book
- Heavy, irregular or intermenstrual bleeding
- Pelvic pain, pressure, bloating or painful periods
- Difficulty conceiving or recurrent miscarriage assessment
- Suspected fibroid, endometrial polyp or adenomyosis
- Clarification of a congenital uterine anomaly
- IUD position, malposition or possible embedment
- Pre-conception or IVF planning
- Follow-up of an ovarian cyst or previous pelvic finding
Seek urgent medical care for severe or rapidly worsening pelvic pain, collapse, fainting, heavy uncontrolled bleeding, fever with significant pain, or a positive pregnancy test with pain or bleeding. Private ultrasound is not an emergency service.
Before you arrive
How to prepare for your scan
Attend with a full bladder
A moderately full bladder improves transabdominal views. Follow your booking instructions and avoid becoming painfully overfilled.
Empty before internal imaging
If you consent to transvaginal imaging, you will usually be asked to empty your bladder before the internal part of the scan.
Consider cycle timing
For uterine-cavity or endometrial concerns, days approximately 5–10 may give clearer views. Urgent symptoms can be assessed at other times.
Bring relevant information
Bring cycle dates, fertility-treatment details, medication, previous reports and information about any IUD, surgery or Caesarean delivery.
Consent, dignity and choice Transvaginal ultrasound is optional. It is explained before examination, performed only with consent and can be stopped at any time. A chaperone is available in accordance with clinic policy.
Your appointment
What happens during the scan?
- 1
Clinical discussion
Your practitioner confirms your symptoms, menstrual cycle, fertility goals, pregnancy possibility, previous surgery, IUD history and prior imaging.
- 2
Transabdominal survey
With a moderately full bladder, gel and a probe are used across the lower abdomen to obtain an overview of the uterus and adnexa.
- 3
Optional transvaginal examination
After explanation and consent, a covered internal probe may be used to obtain higher-resolution views. You may decline or stop at any time.
- 4
3D volume acquisition
A controlled volume sweep is stored and reconstructed into coronal, sagittal and transverse planes for detailed structural assessment.
- 5
Doppler and measurements
Relevant measurements are recorded, and colour or Power Doppler is added when clinically useful.
- 6
Results and recommendations
The principal observations are explained, followed by a structured report with images and appropriate recommendations.
Clinical applications
How 3D imaging may add useful detail
Uterine anomalies
The coronal plane can help distinguish internal cavity septation from an external fundal contour abnormality and support differentiation of septate and bicornuate patterns.
Polyps and submucosal fibroids
Multiplanar views can show how a focal lesion relates to the endometrial cavity, while Doppler may demonstrate a feeding vessel or lesion vascularity.
Fertility planning
Assessment can define the uterine cavity, endometrial development, ovarian morphology and structural findings relevant before conception or embryo transfer.
Adenomyosis
3D imaging can add information about the junctional zone and cavity distortion alongside conventional features of adenomyosis.
IUD localisation
Three-dimensional coronal views can improve visualisation of the IUD arms and their relationship to the uterine cavity and myometrium.
Caesarean scar niche
Selected sagittal and reconstructed views may help characterise a visible niche, residual myometrial thickness and its relationship to the cavity.
Understanding the limits
What the scan cannot always answer
Not all endometriosis is visible
Microscopic disease, adhesions and some deep lesions may not be detected on a routine pelvic scan. A dedicated endometriosis protocol or MRI may be more appropriate.
Some cavity lesions need further tests
Very small polyps or subtle intracavitary pathology may require saline infusion sonography or hysteroscopy for definitive assessment.
Image quality varies
Bowel gas, body habitus, uterine position, large fibroids and inability to tolerate transvaginal imaging can limit views or reconstruction quality.
Choosing the right examination
3D pelvic scan compared with related tests
| Examination | Most useful for | Important distinction |
|---|---|---|
| Standard pelvic ultrasound | Routine assessment of the uterus, endometrium, ovaries and adnexa. | High-resolution 2D imaging; sufficient for many common pelvic questions. |
| 3D pelvic ultrasound | Uterine shape, endometrial cavity, IUD position, submucosal fibroids, polyps, niche and fertility planning. | Adds a volume dataset and true coronal uterine reconstruction. |
| Dedicated endometriosis scan | Endometriomas, deep endometriosis, organ mobility, sliding sign and mapping of accessible compartments. | Requires a focused dynamic protocol beyond routine 3D pelvic imaging. |
| SIS / hysteroscopy | Detailed assessment or treatment planning for intracavitary lesions. | May be advised when ultrasound findings are subtle or require direct cavity evaluation. |
| Pelvic MRI | Complex masses, deep endometriosis staging, extensive adenomyosis or inconclusive ultrasound. | Provides a wider field of view and tissue characterisation. |
PrivateSono
Detailed pelvic imaging with clear reporting
Book a self-referred 3D pelvic ultrasound in Central London or St Albans, with a respectful examination tailored to your symptoms, fertility goals and clinical history.
Book 3D pelvic scan — £269Experienced practitioners
Examinations performed by appropriately trained ultrasound professionals.
Advanced imaging
2D, 3D volume reconstruction and Doppler when clinically indicated.
Patient choice
Clear consent, optional transvaginal imaging and respect for dignity throughout.
Structured reporting
Key observations, measurements, images and appropriate recommendations.
Clinic locations
Private 3D pelvic ultrasound near you
Good to know
3D pelvic ultrasound FAQs
Answers about preparation, internal imaging, cycle timing, fertility applications, results and limitations.
Still unsure? Call 020 7101 3377What is a 3D pelvic ultrasound?
A 3D pelvic ultrasound acquires a volume dataset of the pelvis. This allows reconstruction of the uterus and cervix in multiple planes, including the true coronal plane, alongside conventional 2D imaging.
How is 3D pelvic ultrasound different from standard 2D?
2D ultrasound provides high-resolution slices and remains the foundation of the examination. 3D adds a volumetric dataset that can improve assessment of uterine shape, the endometrial cavity, submucosal fibroids, polyps, IUD position and Caesarean scar niches.
Is the scan internal?
The examination commonly includes a transabdominal scan with a moderately full bladder and an optional transvaginal scan after you empty your bladder. Transvaginal imaging usually provides the highest-resolution 3D views, but it is only performed with your consent.
Can I decline the transvaginal scan?
Yes. The internal examination is optional and you may decline or stop it at any time. The practitioner will explain how this may affect image detail and diagnostic confidence.
How should I prepare?
Attend with a moderately full bladder for the transabdominal part. You will usually be asked to empty your bladder before any transvaginal imaging. Follow the exact drinking instructions in your booking confirmation.
What is the best time in my menstrual cycle?
For endometrial or uterine-cavity assessment, days approximately 5–10 of the cycle often provide clearer views after menstrual bleeding has finished. Timing is tailored for fertility monitoring or urgent symptoms.
Can I be scanned during my period?
Yes, particularly when symptoms are urgent. For non-urgent assessment of the endometrium or uterine cavity, views are often clearer after bleeding has finished.
What conditions may the scan identify?
The scan can assess uterine shape, fibroids, suspected endometrial polyps, adenomyosis features, ovarian cysts and follicles, adnexal masses, IUD position and some Caesarean scar niche findings. Not every condition is visible on ultrasound.
Can a 3D scan diagnose endometriosis?
A dedicated endometriosis protocol may identify endometriomas, some deep nodules, tethering and sliding-sign abnormalities. A routine 3D pelvic scan does not exclude endometriosis, and MRI or specialist assessment may be advised when suspicion remains.
How can 3D ultrasound help with fertility?
It can define the uterine cavity and congenital uterine shape, map polyps or submucosal fibroids that may affect implantation, assess the ovaries and endometrium, and support pre-conception or IVF planning.
Can the scan check an IUD or coil?
Yes. 2D and 3D views can assess the position of an intrauterine device and may help identify malposition, low position or possible embedment. Management decisions should be discussed with your GP or gynaecology clinician.
Is 3D pelvic ultrasound safe?
Ultrasound uses sound waves and no ionising radiation. The examination is performed using clinically appropriate settings and only the views needed for the diagnostic question.
How long does the appointment take?
Appointments typically take around 25–40 minutes depending on complexity, whether both transabdominal and transvaginal imaging are performed, and whether Doppler or detailed mapping is required.
When will I receive the results?
The principal observations are usually discussed at the appointment, with a structured written report and relevant images provided according to the clinic's reporting process.
What happens if an abnormality is found?
The report may recommend discussion with your GP, fertility team or gynaecologist, interval ultrasound, saline infusion sonography, hysteroscopy, MRI, blood tests or another targeted investigation depending on the findings.
Appointments in London & St Albans
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