Pelvic venous congestion syndrome: female venous congestive syndromes and endovascular cure options MRI: Like CT scans, MRI is significantly less beneficial for diagnosing PCS because You must lie down through the imaging. MRI doesn’t require radiation or contrast dye, and is an outpatient technique that usually takes about 15 minutes. https://www.sgvascularctr.com/service/pelvic-congestion-syndrome/