Wireless modification of the intraoperative examination monitor for awake surgery: Technical note

Kitaro Yoshimitsu*, Takashi Maruyama, Yoshihiro Muragaki, Takashi Suzuki, Taiichi Saito, Masayuki Nitta, Masahiko Tanaka, Mikhail Chernov, Manabu Tamura, Soko Ikuta, Jun Okamoto, Yoshikazu Okada, Hiroshi Iseki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The dedicated intraoperative examination monitor for awake surgery (IEMAS) was originally developed by us to facilitate the process of brain mapping during awake craniotomy and successfully used in 186 neurosurgical procedures. This information-sharing device provides the opportunity for all members of the surgical team to visualize a wide spectrum of the integrated intraoperative information related to the condition of the patient, nuances of the surgical procedure, and details of the corticalmapping, practically without interruption of the surgical manipulations. The wide set of both anatomical and functional parameters, such as view of the patient's mimic and face movements while answering the specific questions, type of the examination test, position of the surgical instruments, parameters of the bispectral index monitor, and general view of the surgical field through the operating microscope, is presented compactly in one screen with several displays. However, the initially designed IEMAS system was occasionally affected by interruption or detachment of the connecting cables, which sometimes interfered with its effective clinical use. Therefore, a new modification of the device was developed. The specific feature is installation of wireless information transmitting technology using audio-visual transmitters and receivers for transfer of images and verbal information. The modified IEMAS system is very convenient to use in the narrow space of the operating room.

Original languageEnglish
Pages (from-to)472-476
Number of pages5
JournalNeurologia Medico-Chirurgica
Issue number6
Publication statusPublished - 2011
Externally publishedYes


  • Awake craniotomy
  • Cerebral glioma
  • Intraoperative cortical mapping
  • Intraoperative monitoring
  • Surgery

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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