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The present study aimed to assess the usefulness of Dyna CT during transarterial uterine artery embolization (UAE) of fibroids. A total of 65 patients with symptomatic submucosal and intramural fibroids scheduled for transarterial UAE at the First People's Hospital of Changhou between May 2016 and September 2018 were included. Dyna CT and routine digital subtraction angiography (DSA) were performed in all patients during angiographic embolization of the bilateral internal iliac arteries. The visualization qualities of uterine artery origin and fibroids, as imaged by Dyna CT, were compared with DSA anterior-posterior images. Dyna CT provided excellent 3-dimensional visualization of vascular structures of the bilateral internal iliac arteries and uterine artery origin. Dyna CT was primarily useful in patients with overlapped uterine arteries or complex vascular anatomies on DSA anterior-posterior images (Dyna CT 100% vs. DSA anterior-posterior 69.2%, P=0.03). However, stained fibroids were identified in 57/65 cases (87.7%) by Dyna CT, and in all of the cases (100%) by DSA anterior-posterior imaging (P=0.03). Dyna CT is not suitable for procedural evaluation when used alone for transarterial UAE of fibroids. However, Dyna CT is an excellent supplement to DSA anterior-posterior imaging, as it provides additional information to aid in treatment planning.

Value of Dyna CT in guiding embolization during transarterial uterine artery embolization of fibroids