Ultrasound for PCOS: Why It Remains the First Diagnostic Choice

Why Ultrasound for PCOS Plays a Key Role in Diagnosis

PCOS and polycystic ovarian disorder (PCOD) are some of the common hormonal conditions that affect the ovaries. The conditions cause irregular menstrual cycles along with multiple small cysts and fertility problems.

An ultrasound scan (USG) for PCOS is a critical diagnostic tool for managing PCOS and PCOD, as it provides precise imaging of the ovaries, follicles, and endometrial lining. Moreover, a pelvic ultrasound, whether abdominal or transvaginal, enables healthcare professionals to estimate the overall follicle count and assess for polycystic features.

With a clear understanding of the ultrasound test​, let’s explore the types of USGs for PCOS or PCOD assessment.

3 Types of Ultrasounds Used in PCOS Test

Ultrasound for PCOS generally involves different scanning approaches to assess ovarian size, pelvic features, and follicle counts. A recent report suggests that normal ovaries have 8 follicles and a mean volume of 6.1ml. Polycystic ovaries, on the other hand, may have 20 follicles and an ovarian volume of over 10ml on ultrasound ¹.

The overall difference helps physicians assess different patterns for PCOS.

1. Abdominal Ultrasound

For an abdominal ultrasound test, you will have to lie on an examination table, and a diagnostic professional applies water-based gel on your abdomen. Accordingly, a probe, which is a handheld traducer, moves across the lower abdomen to capture images of the ovaries and uterus. One of the highlights of this ultrasound for PCOS is the real-time imaging, which enables fast-track assessment of ovarian volume and follicle distribution.

2. Transvaginal Ultrasound (TVS)

Patients lie with bent knees, and a thin ultrasound probe is inserted into the vagina for this diagnostic process. The probe delivers high-frequency sound waves to develop images of ovaries, follicles, and endometrial lining. Another major advantage of TVS is the generation of higher-quality images than abdominal scans. Moreover, slight adjustments are needed to obtain different views of the uterine lining and ovaries with the transducer.

3. Whole Abdomen Ultrasound

A whole abdomen ultrasound is done by moving a transducer over your belly to view pelvic organs through sound wave echoes. This approach provides a broad view of the uterus, ovaries, and surrounding structures, which helps detect obvious size differences or cyst patterns.

Next, let’s understand what you, as a patient, can expect when undergoing an ultrasound for PCOS test.

What to Expect Before, During, and After an Ultrasound Test for PCOS

An ultrasound for PCOS follows a streamlined process and enables doctors to visualise the ovaries clearly. Moreover, you have clear information on each stage of the test and developments.

• Before the Test: In most cases, you may require a full bladder scan when using an abdominal route; drinking water is critical for accurate diagnosis. There is a strict requirement to wear loose clothing for easy access to the scan area.
• At the Scan: The next step is to lie on the scan table, and a radiology technician places a probe or transducer on your abdomen and gently moves the probe to capture accurate images of pelvic organs. Moreover, the test takes only a short time and is non-invasive, so there is no pain.
• After the Test: After the completion of the test, you can resume your routine tasks, and your doctor discuss further follow-ups.

For an accurate ultrasound test, you can explore Eskag Sanjeevani radiology units in the USG for precise diagnostics and expert patient care.

Let’s now understand what radiology professionals assess to isolate PCOS with ultrasound scans.

What Radiologists Assess on Ultrasound to Confirm PCOS

Radiologists assess the profile of specific ovarian features when you have an ultrasound for PCOS to check if characteristics meet recognised diagnostic standards. Recent studies recommend that 20 or more small follicles in at least one ovary indicate polycystic ovarian morphology on ultrasound ².

Here are some of the radiologists’ checks:

• Ovary volume: Your ovary is measured and compared to a threshold of 10 mL or above, which is a recognised marker for polycystic morphology.
• Follicle number: The count of small follicles is assessed, and a count of 20 or more supports the diagnosis when correlated with symptoms.
• Follicle arrangement: Radiologists assess the overall distribution of follicles within the ovary, as clusters may suggest polycystic features.
• Endometrial appearance: Your uterine lining is observed to assess cycle effects that may influence hormone patterns.
• Other structures: Any unusual cysts or pelvic features that require further evaluation are also reported.

Also read: CT Scan for Abdominal Pain: Why Doctors Choose it for Quick Answers.

Can Ultrasound Answer How to Cure PCOS Permanently?

An ultrasound for PCOS cannot effectively answer your question on how to cure PCOS permanently, since PCOS or PCOD has a characteristic of long-term hormonal problems. The imaging process highlights the features of the ovaries associated with PCOS, allowing doctors to confirm the diagnosis and guide treatment decisions.

Moreover, an ultrasound does not assess hormonal levels, metabolic risks, or insulin response. You can take advantage of the scan, along with appropriate clinical review and lifestyle changes, to achieve a healthy profile.