Taoka Toshiaki, Hirabayashi Hidehiro, Nakagawa Hiroyuki, Sakamoto Masahiko, Kitano Satoru, Takahama Junko, Marugami Nagaaki, Takayama Katsutoshi, Akashi Toshiaki, Miyasaka Toshiteru, Iwasaki Satoru, Kurita Naoko, Sakaki Toshisuke, Kichikawa Kimihiko
Department of Radiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Neuroradiology. 2009 Jan;51(1):11-6. doi: 10.1007/s00234-008-0451-1. Epub 2008 Sep 4.
The purpose of this study was to assess the usefulness of signs ("Sukeroku sign" and "dent internal-capsule sign") for the recognition of subthalamic nucleus (STN).
Five Parkinson's disease cases in which there was a successful placement of deep brain stimulation (DBS) electrodes at the STN were retrospectively reviewed. Five radiologists who were not engaged in localization of STNs in clinical practice were asked to locate the STNs before and after instructions on the signs. We evaluated the deviation between the reader-located points and the location of the DBS electrode for which there had been a successful installation.
After instruction, there was a significant reduction in the deviation between the reader-located points and the DBS electrode. The time required for localization was also reduced after the instructions.
Sukeroku sign and dent internal-capsule sign are feasible indicators of STN and seem to be useful in helping to identify the STN.
本研究的目的是评估体征（“助六体征”和“内囊凹陷征”）对识别丘脑底核（STN）的有用性。
回顾性分析5例帕金森病患者，这些患者的脑深部电刺激（DBS）电极成功植入丘脑底核。邀请5名未参与临床实践中丘脑底核定位的放射科医生，在了解这些体征前后分别对丘脑底核进行定位。我们评估了读者定位点与成功植入DBS电极位置之间的偏差。
了解体征后，读者定位点与DBS电极之间的偏差显著减小。了解体征后，定位所需时间也减少了。
助六体征和内囊凹陷征是可行的丘脑底核指标，似乎有助于识别丘脑底核。
