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
References in periodicals archive ?
Vaginal rupture caused by transvaginal ultrasonography in follow-up for ovarian cancer.
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.
At the start, a baseline endometrial surveillance was done with transvaginal ultrasonography to determine the uterine size, endometrial thickness, and to exclude uterine and adnexal pathology.
Transvaginal ultrasonography of the endometrium in women with postmenopausal bleeding--A Nordic multicenter study.
The combined use of CA 125, physical and pelvic exam, and transvaginal ultrasonography can detect disease progression with 90% sensitivity (7).
2], a history of two to four prior miscarriages following IVF, and a normal-appearing uterus when assessed by transvaginal ultrasonography.
It has been shown that transvaginal ultrasonography is easier than vaginal examination and may be more accurate in predicting success of labour induction.
The committee opinion cited a number of reports comparing transvaginal ultrasonography with endometrial sampling that consistently found that an endometrial thickness of less than or equal to 4-5 mm in patients with postmenopausal bleeding reliably excluded endometrial cancer (ACOG Committee Opinion 440, August 2009).
Although not proven to improve detection or survival, the American College of Obstetricians and Gynecologists (ACOG) and National Comprehensive Cancer Network (NCCN) guidelines recommend that women with BRCAl/2 mutations should undergo screening with transvaginal ultrasonography and CA125 every 6 months beginning between ages 30 and 35 years or 5-10 years prior to the age of the youngest affected family member.