佐藤 公治¹, 松山 幸弘¹, 川上 紀明², 地挽 隆夫³, 岩田 久¹

Koji SATO¹, Yukihiro MATSUYAMA¹, Noriaki KAWAKAMI², Takao JIBIKI³, Hisashi IWATA¹

¹名古屋大学整形外科, ²名城病院整形外科, ³GE横河メディカルシステム株式会社

¹Department of Orthopedic Surgery, Nagoya University School of Medicine, ²Department of Orthopedic Surgery, Meijo Hospital, ³GE Yokogawa Medical Systems, Ltd.

キーワード : Intraoperative ultrasonography , Power Doppler method, Power mode, Spinal-cord monitoring, Spinal surgery

We assessed the value of intraoperative power Doppler in spinal-cord surgery. Sixteen patients underwent spinal surgery in which intraoperative power Doppler was used: 4 cases of cervical myelopathy, 3 cases of ossification of the spinal ligament, 5 cases of extramedullary spinal tumor, 3 cases of intramedullary spinal tumor, and 1 case of spinal arteriovenous malformation (AVM). Spinal surgery requires an atraumatic area that is free of bleeding. We used the real-time power Doppler method to confirmed the anterior spinal artery, central artery, vessels of the subdural space, the feeding artery of spinal tumors, blood flow around spinal tumors, and the drain of AVM, but the B-mode gray scale Doppler method was unable to confirm them. Intraoperative power Doppler was found to be helpful, reliable, and safe in spinal surgery.