Endpoint Accuracy in Manual Control of a Steerable Needle

Berg, Nick J. van de; Dankelman, Jenny; Dobbelsteen, John J. van den

doi:10.1016/j.jvir.2016.07.018

Cited by 11 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5and 6). The patterns kerfed in the EDM-treated needles were selected for their resemblance to compliant joints in steerable needle designs (Henken et al 2017;van de Berg et al 2017). Both kerf types were of equal size (width = 0.1 mm, depth = 0.5 mm), but the second had additional beveled edges (45˚£ 0.2 mm), which may increase the specular reflections for a specific insertion angle range.…”

Section: Specimensmentioning

confidence: 99%

A Methodical Quantification of Needle Visibility and Echogenicity in Ultrasound Images

Berg

Sánchez‐Margallo

Dijke

et al. 2019

Ultrasound in Medicine & Biology

Self Cite

View full text Add to dashboard Cite

During ultrasound-guided percutaneous interventions, needle localization can be a challenge. To increase needle visibility, enhancements of both the imaging methods and the needle surface properties have been investigated. However, a methodical approach to compare potential solutions is currently unavailable. The work described here involves automated image acquisition, analysis and reporting techniques to collect large amounts of data efficiently, delineate relevant factors and communicate effects. Data processing included filtering, line fitting and image intensity analysis steps. Foreground and background image samples were used to compute a contrast-to-noise ratio or a signal ratio. The approach was evaluated in a comparative study of commercially available and custom-made needles. Varied parameters included needle material, diameter and surface roughness. The shafts with kerfed patterns and the trocar and chiba tips performed best. The approach enabled an intuitive polar depiction of needle visibility in ultrasound images for a large range of insertion angles.

show abstract

Section: Specimensmentioning

confidence: 99%

A Methodical Quantification of Needle Visibility and Echogenicity in Ultrasound Images

Berg

Sánchez‐Margallo

Dijke

et al. 2019

Ultrasound in Medicine & Biology

Self Cite

View full text Add to dashboard Cite

show abstract

“…A hand-held steerable needle with battery-powered actuation of a pre-curved stylet protruding from a rigid cannula was proposed by Okazawa et al 13 . Tip-articulated needles were studied by van de Berg et al 14 . Burdette et al 15 were the first to integrate an acoustic ablator within a needle steering device.…”

Section: Related Work and Contribution To Improve Manipulability Andmentioning

confidence: 99%

Steerable needles for radio-frequency ablation in cirrhotic livers

Berg

Meeuwsen

Doukas

et al. 2021

Sci Rep

Self Cite

View full text Add to dashboard Cite

Accurate needle placement in deep-seated liver tumours can be difficult. In this work, we disclose two new manually controlled steerable needles for 17G radio-frequency ablation probe placement. The needles contain stylets with embedded compliant joints for active tip articulations, and concentric tubes for (curved-path) guidance. Needle steering was evaluated sequentially by intended users and in intended-use tissue types. Six interventional radiologists evaluated the needle in repeated ultrasound-guided steering tasks in liver-mimicking phantoms. Targets were located at a 100 mm depth and 20 mm lateral offset from the initial insertion line. The resulting mean absolute tip placement error was 1.0 ± 1.0 mm. Subsequently, steering-induced tissue damage was evaluated in fresh cirrhotic human liver explants. The surface area of puncture holes was estimated in scanned histology slides, using a connected-components analysis. The mean surface area was 0.26 ± 0.16 mm2 after steering with a median radius of curvature of 0.7 × 103 mm, versus 0.35 ± 0.15 mm2 after straight-path insertions with the steerable needle and 0.15 ± 0.09 mm2 after straight-path RFA probe insertions. The steering mechanisms proposed enable clinically relevant path corrections for 17G needles. Radiologists were quickly adept in curved-path RFA probe placement and the evaluation of histological tissue damage demonstrated a potentially safe use during liver interventions.

show abstract

“…Percutaneous needles are commonly used in minimally invasive diagnostics and therapeutic procedures. The trajectory and endpoint of the inserted needle influence the effectiveness of the procedure [ 1 , 2 ]. Misplacement may cause misdiagnosis, additional tissue damage and less effective therapy outcomes [ 3 – 6 ].…”

Section: Introductionmentioning

confidence: 99%

Axially rigid steerable needle with compliant active tip control

et al. 2021

View full text Add to dashboard Cite

Steerable instruments allow for precise access to deeply-seated targets while sparing sensitive tissues and avoiding anatomical structures. In this study we present a novel omnidirectional steerable instrument for prostate high-dose-rate (HDR) brachytherapy (BT). The instrument utilizes a needle with internal compliant mechanism, which enables distal tip steering through proximal instrument bending while retaining high axial and flexural rigidity. Finite element analysis evaluated the design and the prototype was validated in experiments involving tissue simulants and ex-vivo bovine tissue. Ultrasound (US) images were used to provide visualization and shape-reconstruction of the instrument during the insertions. In the experiments lateral tip steering up to 20 mm was found. Manually controlled active needle tip steering in inhomogeneous tissue simulants and ex-vivo tissue resulted in mean targeting errors of 1.4 mm and 2 mm in 3D position, respectively. The experiments show that steering response of the instrument is history-independent. The results indicate that the endpoint accuracy of the steerable instrument is similar to that of the conventional rigid HDR BT needle while adding the ability to steer along curved paths. Due to the design of the steerable needle sufficient axial and flexural rigidity is preserved to enable puncturing and path control within various heterogeneous tissues. The developed instrument has the potential to overcome problems currently unavoidable with conventional instruments, such as pubic arch interference in HDR BT, without major changes to the clinical workflow.

show abstract

Endpoint Accuracy in Manual Control of a Steerable Needle

Cited by 11 publications

References 21 publications

A Methodical Quantification of Needle Visibility and Echogenicity in Ultrasound Images

A Methodical Quantification of Needle Visibility and Echogenicity in Ultrasound Images

Steerable needles for radio-frequency ablation in cirrhotic livers

Axially rigid steerable needle with compliant active tip control

Contact Info

Product

Resources

About