transvaginal ultrasonography

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transvaginal ultrasonography

An ultrasonic examination of the uterus, fallopian tubes, endometrium, and, in pregnant patients, the fetus, by placing a transducer inside the vagina.

Patient care

It may be used to diagnose ectopic pregnancy, determine multiple pregnancies, locate the placenta, identify ovarian cysts and pelvic cancers, and visualize tubo-ovarian abscesses. The patient prepares for the ultrasound by removing her clothing from the waist down and dressing in a clean gown. She is helped into a supine position on an examination table, and her knees are placed in approx. 90° of flexion with her feet supported in stirrups. The ultrasound transducer is covered with a condom or sterile glove coated with a lubricant gel. The patient is told that the probe will be inserted into her vagina, and that the gel may feel cold and slippery. The probe is then directed toward the internal organs, from which sound wave (echo) images are obtained, usually painlessly and without ionizing radiation exposure.

Synonym: endovaginal ultrasound; pelvic ultrasonography
See also: ultrasonography
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Takac, "Transvaginal ultrasonography with and without saline infusion in assessment of myometrial invasion of endometrial cancer," Journal of Ultrasound in Medicine, vol.
Early prediction of preterm delivery by transvaginal ultrasonography. Ultrasound Obstet Gynecol 1992; 2 : 402-9.
(1.) Lohr PA, Reeves MF and Creinin MD, A comparison of transabdominal and transvaginal ultrasonography for determination of gestational age and clinical outcomes in women undergoing early medical abortion, Contraception, 2010, 81(3):240-244.
These women should have annual physical and pelvic exams, a CA 125 test, and a transvaginal ultrasonography (8).
Prediction of oocyte recovery rate by transvaginal ultrasonography and color Doppler imaging before human chorionic gonadotropin administration in in vitro fertilization cycles.
Transperineal ultrasonography is completely replaced by the transvaginal sonography in many developing countries as it is easily available in main cities as well as in periphery, an inexpensive modality and more accessible for general population as compared to transvaginal ultrasonography. While in Pakistan, this modality is still in testing phase and is not being used commonly in our hospitals although it can be done at any hospital because it does not require a special probe as for transvaginal sonography.
Transvaginal ultrasonography shows a uterus that measures 4.5 x 6.1 x 13.6 cm.
Transvaginal ultrasonography is used for diagnosing rectal endometriosis in select centers in certain regions of the world, but there are important limitations; not only is it highly operator dependent, but its limited range does not allow for the detection of endometriosis higher in the sigmoid colon.
Transvaginal ultrasonography associated with colour Doppler energy in the diagnosis of hydrosalpinx.
Transvaginal ultrasonography demonstrated two cystic lesions in the right ovary (ovarian size was 49 x 33 mm).
Vaginal examination was normal, but transvaginal ultrasonography revealed left-sided interstitial pregnancy, with gestational sac and foetal pole within.