Ultrasound using transducer placed in vagina for high-resolution pelvic imaging
Expansion
Transvaginal Ultrasound
Purpose
Evaluates uterus, ovaries, adnexa, and first-trimester pregnancy
Clinical Context
TVS uses higher-frequency transducer (7 to 12 megahertz) close to target. Excellent for endometrial pathology, ovarian masses, and early pregnancy (hCG greater than 1000 mIU per millilitre).
Related Terms
- Transabdominal ultrasound
- MRI pelvis
Key Points
- TVS provides superior resolution compared to transabdominal approach; required for gynaecological sonography