Illusory Intravascular Needle Placement

Koyyalamudi, Veerandra; Laduzenski, Sarah; Boezaart, André P.; Deitte, Lori A.

doi:10.1097/aap.0b013e3181df2256

Cited by 3 publications

(1 citation statement)

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“…nerve or vessel), while in fact this is only the artifact and the injection could be safe. 22 On the other hand, during vascular access, the needle tip may already appear intravascular, but aspiration is impossible, as the real needle tip is still out of the vessel.…”

Section: Beam-width and Side-lobe Artifactsmentioning

confidence: 99%

Needle-related ultrasound artifacts and their importance in anaesthetic practice

Reusz

Sárkány

Gál

et al. 2014

British Journal of Anaesthesia

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Real-time ultrasound guidance for any intervention relies on visualization of needle advancement towards a target. Unfortunately, correct identification of the needle tip is not straightforward, as artifacts always distort the image. The ultrasonic appearance of the needle is often degraded by reverberation, comet tail, side-lobe, beam-width, or bayonet artifacts, which can easily confuse an unprepared operator. Furthermore, the typical needle image, that is, a dot or a straight line (out-of-plane and in-plane approaches, respectively), is also a result of artifacts that hide the real dimensions of the needle. Knowledge and correct interpretation of these artifacts is important for safe practice and is paramount to success when precise needle manipulation is mandatory, for example, when the target is small. In this review, authors discuss the most important needle-related artifacts and provide a physical explanation focusing on implications for everyday practice. Recent advances that allow increased needle visualization and reduction of artifacts are also discussed.

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Section: Beam-width and Side-lobe Artifactsmentioning

confidence: 99%