Sonosalpingography Explained

Sonosalpingography
Purpose:	evaluating patency of fallopian tubes

Sonosalpingography (SSG), also known as Sion test, is a diagnostic procedure primarily used for evaluating patency of fallopian tubes.^{[1] [2]} It was introduced as a screening procedure for infertility investigations.^[3] It is becoming more popular among practitioners due to absence of side effects.^[2]

Procedure

Under ultrasound scanning, a slow and deliberate injection of about 200 ml physiologic saline into the uterine cavity is accomplished via Foley catheter. An inflated bulb of the catheter prevents leakage of fluid outside uterine cavity. By visualizing the flow of saline along the tube and observing it as a shower at fimbrial end, tubal patency can be tested. Presence of free fluid in pouch of Douglas also confirms tubal patency.

Uses

• For detecting patency of fallopian tube
• Detection of submucous fibroid polyp
• Detection of some intrauterine lesions
• Part of infertility investigations
• Investigation of amenorrhea, especially in Asherman's syndrome
• Investigating repeat pregnancy losses for uterine anomalies

Eponym

The term 'Sion test' was popularized by Gautam Allahbadia after the popular government hospital in Sion, Lokmanya Tilak Municipal General Hospital, locally known as 'Sion hospital',^{[2] [4]} where he invented the test.

See also

• Gynecological ultrasound
• Hysterosalpingography

Notes and References

1. Book: Hoffman, Barbara . Williams gynecology . McGraw-Hill Medical . New York . 2012 . 9780071716727. 46–47 .
2. Book: Padubiri, Daftary. Shaw's Textbook of Gynaecology, 15e. 2011. Elsevier India. New Delhi. 9788131225486. 213.
3. Allahbadia. GN. Nalawade, YV . Patkar, VD . Niyogi, GM . Shah, PK . The Sion test.. The Australian & New Zealand Journal of Obstetrics & Gynaecology. Feb 1992. 32. 1. 67–70. 1534011. 10.1111/j.1479-828x.1992.tb01904.x. 39010774 .
4. Allahbadia. GN. Fallopian tubes and ultrasonography: the Sion experience.. Fertility and Sterility. Nov 1992. 58. 5. 901–7. 10.1016/s0015-0282(16)55432-6. 1426374. free.