The effect of electromagnetic guidance system on early learning curve of ultrasound for novices.
10.4097/kjae.2016.69.1.15
- Author:
Eun Jung KIM
1
;
Jiyoung MIN
;
Jeongyun SONG
;
Kyungchul SONG
;
Jang Ho SONG
;
Hyo Jin BYON
Author Information
1. Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea. jinoben@yuhs.ac
- Publication Type:Original Article
- Keywords:
Electromagnetic fields;
Learning curve;
Ultrasonography
- MeSH:
Catheterization;
Electromagnetic Fields;
Humans;
Learning Curve*;
Learning*;
Magnets*;
Needles;
Peripheral Nerves;
Ultrasonography*
- From:Korean Journal of Anesthesiology
2016;69(1):15-20
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND: Electromagnetic guidance reveals needle alignment and position relative to the image plane on an ultrasound view. This study compared the early learning curves of novices performing ultrasound-guided needle placement with (n = 10) or without electromagnetic guidance (n = 10). METHODS: Participants performed 30 ultrasound-guided needle placements using an echogenic stick (0.3-cm diameter) as a target inside a phantom model; this early learning period was divided into sequential periods (P1: 1-5, P2: 6-10, P3: 11-15, P4: 16-20, P5: 21-25, P6: 26-30 attempts). RESULTS: Using an in-plane approach, the time required for needle placement in the EMG group was significantly shorter than that of the non-EMG group in P1, P2, P4, and P6 and the number of needle advances of the EMG group was significantly smaller than that of the non-EMG group in P1 and P2. Using an out-of-plane approaches, the time required for needle placement in the EMG group was significantly shorter than that of the non-EMG group in all periods, but the number of needle advances was similar between both groups in P1-P5. CONCLUSIONS: The electromagnetic guidance system may be beneficial when performing ultrasound guided peripheral nerve blocks or vascular cannulation in the early learning period, especially by inexperienced operators with reducing patient risk.
