- 作者：Michael Kranzfelder ; M.D.&lowast ; ; &dagger ; ; kranzfelder@chir.med.tu-muenchen.de ; Dorit Zywitza ; cand.med.&dagger ; ; Thomas Jell&dagger ; ; Armin Schneider ; Dr.Ing.&dagger ; ; Sonja Gillen ; M.D.&lowast ; ; &dagger ; ; Helmut Friess ; M.D.&lowast ; ; Hubertus Feussner ; M.D.&lowast ; ; &dagger ;
- 关键词：radio-frequency-identification (RFID) ; passive RFID ; active RFID ; gossypiboma ; retained sponge ; real-time sponge tracking ; real-time OR-team tracking ; situational awareness
- 刊名：Journal of Surgical Research
- 出版年：2012
- 期刊代码：299_00224804
- 类别：med
- 出版时间：15 June, 2012
- 卷：175
- 期：2
- 页码：191-198
- 文件大小：1124 K
Background
Technical progress in the surgical operating room (OR) increases constantly, facilitating the development of intelligent OR systems functioning as 鈥渟afety backup鈥?in the background of surgery. Precondition is comprehensive data retrieval to identify imminent risky situations and inaugurate adequate security mechanisms. Radio-frequency-identification (RFID) technology may have the potential to meet these demands.Methods
We set up a pilot study investigating feasibility and appliance reliability of a stationary RFID system for real-time surgical sponge monitoring (passive tagged sponges, position monitoring: mayo-stand/abdominal situs/waste bucket) and OR team tracking (active transponders, position monitoring: right/left side of OR table).
Results
In vitro: 20/20 sponges (100%) were detected on the mayo-stand and within the OR-phantom, however, real-time detection accuracy declined to 7/20 (33%) when the tags were moved simultaneously. All retained sponges were detected correctly. In vivo (animal): 7-10/10 sterilized sponges (70%-100%) were detected correctly within the abdominal cavity. OR-team: detection accuracy within the OR (surveillance antenna) and on both sides of the OR table (sector antenna) was 100%. Mean detection time for position change (left to right side and contrariwise) was 30-60 s. No transponder failure was noted.
Conclusion
This is the first combined RFID system that has been developed for stationary use in the surgical OR. Preclinical evaluation revealed a reliable sponge tracking and correct detection of retained textiles (passive RFID) but also demonstrated feasibility of comprehensive data acquisition of team motion (active RFID). However, detection accuracy needs to be further improved before implementation into the surgical OR.