Medical Ultrasound Imaging
Thursday, 3 April 2025
 Info Sheets  Out- side     | 'Transvaginal Echography' Searchterm 'Transvaginal Echography' found in 4 articles 4 definitions [ • ] Result Pages : •
The usual applications of endocavitary echography (also called internal echography / endoscopic ultrasound (EUS)) are examinations of the pelvic organs through internally introduced probes, which give a more precise and correct image. Transrectal ultrasound is a well established method for rectal or prostate carcinoma assessment. A transvaginal echography uses a small transducer that is inserted directly into the vagina. Used are high-frequency (10-12 MHz) for superficial organs, endocavitary echography, and intraoperative laparoscopic ultrasound. A sterile cover is slipped over the probe, which is then covered with lubricating ultrasound gel and placed in the cavitary (see Equipment Preparation). See also Endoscopic Ultrasound, Prostate Ultrasound, Interventional Ultrasound, Transurethral Sonography, Vaginal Probe, Rectal Probe. •
(HyCoSy) Hysterosalpingo contrast sonography is used for evaluation of fallopian tube patency in patients with fertility problems who underwent transvaginal sonography. HyCoSy compared to more invasive techniques such as chromo-laparoscopy is rapidly becoming the screening test of choice to determine tubal patency. Any body cavity that can be accessed can, in principle, be injected with vascular contrast. The contrast agent is instilled into the uterine cavity via a small Foley type catheter and, using transvaginal echography, the passage of the echogenic contrast along the tubes and into the adnexal peritoneum is tracked. Hysterosalpingo contrast sonography does not offer the same anatomical and false negative results, e.g., because of tubal spasm, are possible so conventional X-ray salpingography is needed when tubal surgery is an option. See also Endocavitary Echography, Transvaginal Sonography. •
The array of elements of microconvex probe is curved with a certain radius.
Microconvex probes have a much smaller contact surface, which improves the coupling between the transducer and the skin surface even in complicated areas as the supraclavicular or jugular fossa. Microconvex probes, with large aperture and selection of transmission frequencies are also used in gynecological diagnostic. See also Transvaginal Echography, Endocavitary Echography and Transrectal Ultrasonography. •
(TVS) The transvaginal sonography (transvaginal echography or endovaginal ultrasound), uses a small vaginal transducer (5-7.5 MHz) that is inserted into the vagina to depict the inner female organs (uterus, ovaries, vessels). As a general rule, ultrasound works better when the probe is close to the area being examined. Compared with a sonogram through the abdominal wall, the transvaginal technique produces a sharper image, not only because of the close proximity to the uterus, but also because the better signal to noise ratio of the used transducer. Indications:
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detection and delineation of pelvic masses;
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ectopic pregnancy;
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ovarian cysts or tumors;
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pelvic inflammatory disease;
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bladder and rectal tumors.
The advantage of transvaginal sonography is being able to get very close to the structures of the pelvis, and thus get better images and a more reliable diagnosis. See also Pelvic Ultrasound, Hysterosalpingo Contrast Sonography.  Further Reading: News & More:
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[last update: 2023-11-06 01:42:00]