Echogenic Regional Anaesthesia Needles: A Comparison Study in Thiel Cadavers

Guo, Shuo; Schwab, A.; McLeod, Graeme; Corner, George; Cochran, Sandy; Eisma, Roos; Soames, Roger

doi:10.1016/j.ultrasmedbio.2012.01.001

Cited by 42 publications

(32 citation statements)

References 18 publications

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“…C lear needle visualization and tissue imaging are essential for the successful practice of ultrasound-guided regional anesthesia (USGRA). [1][2][3] Needle tip control is necessary to prevent vascular or nerve puncture. 4 Several technological innovations are available for improving needle visualization, either by improved echogenicity of the needle or improved sonographic imaging algorithms.…”

Section: Methods: a Total Of 200 Video Clips Of In-plane Needle Insermentioning

confidence: 99%

“…Echogenic needle design improves needle visibility, especially in in-plane techniques. 2,3,[5][6][7] Needle surface modifications of echogenic needle design cause higher US beam reflections than conventional needles with smooth surfaces. However, few studies have systematically investigated aspects of needle visibility in a clinical study or cadaver model at different needle angles.…”

Section: Methods: a Total Of 200 Video Clips Of In-plane Needle Insermentioning

confidence: 99%

“…According to the validity criteria for stepwise logistic regression, we overall included 10 times more observations as covariates for our calculations. 9 For stepwise regression analysis, needle insertion angle was dichotomized in group A (angles 10, 20, 30 degrees) and group B (40-45 degrees) following previously published work by Guo et al 3 Scores for speckle, NAs, and TS were evaluated using the videos with or without SCI option using χ 2 testing for the nonparametric ordinal-ranged data sets. …”

Section: Methodsmentioning

confidence: 99%

“…Spatial compound imaging significantly (P < 0.0001) improves scoring of TS (with SCI 2 [2][3], without SCI 1 [1][2], median [25th-75th quartiles]), Table 1 and Fig. 4).…”

Section: Tissue Imaging and Spasmentioning

confidence: 97%

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Compound Imaging Technology and Echogenic Needle Design

Wiesmann

Bornträger

Zoremba

et al. 2013

Regional Anesthesia and Pain Medicine

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Section: Methods: a Total Of 200 Video Clips Of In-plane Needle Insermentioning

confidence: 99%

Section: Methods: a Total Of 200 Video Clips Of In-plane Needle Insermentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Spatial compound imaging significantly (P < 0.0001) improves scoring of TS (with SCI 2 [2][3], without SCI 1 [1][2], median [25th-75th quartiles]), Table 1 and Fig. 4).…”

Section: Tissue Imaging and Spasmentioning

confidence: 97%

See 2 more Smart Citations

Compound Imaging Technology and Echogenic Needle Design

Wiesmann

Bornträger

Zoremba

et al. 2013

Regional Anesthesia and Pain Medicine

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“…Manufacturers have incorporated microscopic glass beads or reflectors into the surfaces of peripheral block needles to increase their visibility during ultrasound scanning. Few studies have assessed whether these innovations have improved needle echogenicity [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The echogenicity of nerve blockade needles

et al. 2014

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SummaryWe performed a prospective, randomised study to evaluate the echogenicity of 11 regional block needles when inserted into a gel phantom at 45°in the ultrasound plane. Two hundred anaesthetists viewed in random sequence recordings of each needle as it was advanced into the phantom. Participants scored the needle for echogenicity on a scale of 0-10 and categorised the needle as 'hyperechoic' or 'standard'. The mean (95% CI) echogenicity score was 1.7 (1.4-2.0) units higher for three needles marketed as 'hyperechoic' compared with standard needles marketed by the same companies, p < 0.001. The odds ratios (95% CI) that an anaesthetist would categorise a needle as hyperechoic were: 5.3 (3.6-8.0) if the needle was marketed as hyperechoic, p < 0.001; and 1.7 (1.1-2.6) if regional anaesthetic experience was ≥ 1 year compared with < 1 year, p = 0.025.

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A pilot study comparing the use of Thiel‐ and formalin‐embalmed cadavers in the teaching of human anatomy

Balta

Lamb

Soames

2014

Anatomical Sciences Ed

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Formalin had traditionally been used to preserve human material to teach gross anatomy. In 2008 the Centre for Anatomy and Human Identification (CAHID) at the University of Dundee embarked on the use of the Thiel method of embalming. The aim of this pilot study was to assess the difference between formalin-embalmed cadavers (FEC) and Thiel-embalmed cadavers (TEC) used for teaching and surgical training. Three different questionnaires were prepared for data collection from undergraduate and postgraduate students and clinical staff. All undergraduate and postgraduate students as well as clinical staff commented on the appearance of the TEC. There was no overall consensus concerning the use of TEC, some respondents preferred TEC for the entire dissection, some only for certain areas such as the musculoskeletal system. On a technical level TEC were considered less hazardous then FEC by one-third of participants with fewer than 10% regarding TEC as more irritating than FEC. Psychologically, 32.7% of undergraduate students expressed the view that TEC made them feel more uncomfortable compared with FEC because of their life-like appearance. However, 57.1% of undergraduate students encountered the same uncomfortable feelings when viewing both TEC and FEC. The use of Thiel-embalmed cadavers to teach anatomy has an added value, though further research is required over longer periods of time to identify its best usage.

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Echogenic Regional Anaesthesia Needles: A Comparison Study in Thiel Cadavers

Cited by 42 publications

References 18 publications

Compound Imaging Technology and Echogenic Needle Design

Compound Imaging Technology and Echogenic Needle Design

The echogenicity of nerve blockade needles

A pilot study comparing the use of Thiel‐ and formalin‐embalmed cadavers in the teaching of human anatomy

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