See link below: Sonohysterography uses ultrasound to image your uterus. Hysterosalpingogram uses xray and iodine contrast to look inside. See link below http://www.radiologyinfo.org/en/info.cfm?pg=hysterosono http://www.radiologyinfo.org/en/info.cfm?pg=hysterosalp
Answered 5/20/2016
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