Radionuclide evaluation of tubal function

Area of Science:

• Reproductive Medicine
• Nuclear Medicine
• Gynecologic Surgery

Background:

• Assessing fallopian tube function is crucial for diagnosing infertility and evaluating surgical outcomes.
• Traditional methods like hysterosalpingography provide anatomical information but limited functional data.

Purpose of the Study:

• To evaluate the tubal capacity to transport radioactively labeled human albumin microspheres.
• To compare radionuclide imaging results with surgical findings for diagnostic accuracy.
• To assess the utility of this radionuclide test in evaluating tubal microsurgery outcomes.

Main Methods:

• 34 patient-volunteers received 1 millicurie of technetium-99 labeled human albumin microspheres (20 μm) deposited in the vaginal fornix and cervical canal.
• Radioactive material distribution was imaged using a gamma camera at intervals from 15 to 240 minutes.
• Radiation dose to ovaries was comparable to a standard hysterosalpingogram.

Main Results:

• The radionuclide evaluation showed an 87.1% overall correlation with surgical findings (laparoscopy/laparotomy).
• The method demonstrated the tubal capacity for microsphere transport and ovarian surface concentration.
• Radiation exposure was deemed similar to conventional hysterosalpingography.

Conclusions:

• Radionuclide imaging of microsphere transport provides a functional assessment of fallopian tubes.
• This technique offers superior understanding of tubal patency and function compared to hysterosalpingography.
• It serves as a valuable tool for evaluating the success of tubal microsurgical procedures.