Magnetic resonance imaging with gadolinium-diethylenetriamine pentaacetic acid is useful in assessment of tubal patency in a patient with iodine-induced hypothyroidism.

A 32-year-old woman presented for evaluation of primary infertility. Because she had a history of iodine-induced hypothyroidism, conventional hysterosalpingography was contraindicated. Tubal patency was assessed by magnetic resonance imaging (MRI) after infusion of gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA). Visualization of the contrast medium in the peritoneal cavity revealed tubal patency. Our case indicates that MRI with gadolinium-diethylenetriamine pentaacetic acid is a safe, simple, and easy way to confirm that at least one tube is patent when a patient is at risk for hysterosalpingography. To our knowledge, this is the first report that tubal patency was diagnosed on MRI.