Citation Information :
Hata T, Takayoshi R, Miyake T, Mori N, Kanenishi K. Use of Transvaginal Superb Microvascular Imaging in Uterine Disorders. Donald School J Ultrasound Obstet Gynecol 2021; 15 (2):115-118.
Aim and objective: To present our first experience of using superb microvascular imaging (SMI) and three-dimensional SMI (3D-SMI) to assess the microvasculature of uterine disorders.
Materials and methods: Three cases of uterine disorders [missed abortion, cervical adenocarcinoma (gastric-type mucinous carcinoma: GAS), and uterine arteriovenous malformation (AVM)] were studied to assess the microvasculature using the latest transvaginal SMI. Comparison between conventional color Doppler and SMI for detection of uterine vascularity was conducted in a postmenopausal woman.
Results: Myometrial-rich microvasculature was clearly demonstrated using SMI compared with conventional color Doppler in the postmenopausal woman. In the case of missed abortion, tiny blood vessels could be clearly identified in the contents of the uterine cavity. Only a few tiny blood vessels were noted in the bulky tumor in the cervix of the GAS. In the case of uterine AVM, tortuous structures of AVM were clearly recognized using SMI and 3D-SMI.
Conclusion: Superb microvascular imaging provides more detailed information regarding the microvasculature in uterine disorders, compared with conventional color Doppler. Transvaginal SMI can depict tiny uterine blood vessels without blooming. Further studies involving a larger sample size are needed to confirm the usefulness of SMI to assess the microvasculature in uterine disorders.
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