What is endovag ultrasound?

Endovaginal ultrasound, abbreviated EVUS, is a type of sonographic examination employing a small ultrasound probe (transducer) into the vagina to obtain high-resolution images of female pelvic organs. It is a safe and reliable method used for diagnostic purposes, primarily in obstetrics and gynecology, to assess various reproductive and gynecological conditions. Endovaginal ultrasound provides real-time images that allow healthcare providers to evaluate uterine, ovarian, and related abnormalities.

Here are some key aspects of endovaginal ultrasound:

Transducer: During an endovaginal ultrasound, a specialized ultrasound transducer, about the size of a tampon and covered with a sheath, is gently inserted into the vagina.

Imaging: The endovaginal transducer transmits high-frequency sound waves into the pelvic tissues. These waves produce detailed images of the female reproductive organs, including the uterus, ovaries, cervix, fallopian tubes, and surrounding structures.

Diagnostic Use: Endovaginal ultrasound is used for various diagnostic purposes, such as:

- Early pregnancy evaluation, including monitoring fetal growth, assessing gestational age, detecting multiple pregnancies, evaluating the placenta, and identifying abnormalities.

- Diagnosing uterine abnormalities, including fibroids, polyps, adenomyosis, and congenital malformations.

- Detecting ovarian cysts and masses, assessing pelvic pain, evaluating infertility issues, and diagnosing certain gynecological conditions.

- Guiding procedures such as biopsies and oocyte retrieval during fertility treatments.

Benefits:

- Clear Images: Endovaginal ultrasound provides clearer and more detailed images compared to transabdominal ultrasound, due to its proximity to the reproductive organs.

- Early Detection: It allows early detection of pregnancy and assessment of early pregnancy status.

- Gynecological Evaluation: It enables the evaluation of various gynecological conditions that may not be detectable by a transabdominal ultrasound.

- Procedural Guidance: Endovaginal ultrasound provides guidance during certain procedures, ensuring precision and accuracy.

Preparation and Procedure:

1. Prior to the ultrasound, you may be asked to empty your bladder to improve the accuracy of the images.

2. The ultrasound technician will provide you with instructions and may ask you to lie down in a comfortable position, usually with your legs spread apart and supported.

3. The ultrasound transducer will be gently inserted into the vagina. A water-based gel is often used to facilitate the ultrasound waves and ensure good contact.

4. The technician moves the transducer inside the vagina, capturing images and documenting any relevant findings.

5. The procedure typically lasts for a few minutes and is generally well-tolerated by most women.

Limitations and Considerations:

- Endovaginal ultrasound may cause slight discomfort or pressure for some women, but it is generally considered to be a safe and painless procedure.

- While it provides detailed information, endovaginal ultrasound may not always be able to diagnose all conditions, and further tests or procedures may be necessary for a comprehensive evaluation.

- Endovaginal ultrasound is commonly used alongside other diagnostic methods, including transabdominal ultrasound, pelvic exams, and laboratory tests, to ensure a thorough assessment of a woman's reproductive health.