Purpose: Accurate and precise needle placement is of utmost importance in interventional radiology. However, targeting can be challenging due to, eg, tissue motion and deformation. Steerable needles are a possible solution to overcome these challenges. The present work studied the clinical need for steerable needles. We aimed to answer three subquestions: 1) What are the current challenges in needle placement? 2) What are allowable needle placement errors? and 3) Do current needles need improvement and would steerable needles add clinical value?
Methods: A questionnaire was administered at the Annual Meeting of Cardiovascular and Interventional Radiology Society of Europe in 2016. In total, 153 respondents volunteered to fill out the survey, among them 125 (interventional) radiologists with experience in needle placement.
Results: 1) Current challenges in needle placement include patient-specific and technical factors. Movement of the target due to breathing makes it most difficult to place a needle (90%). 2) The mean maximal allowable needle placement error in targeted lesions is 2.7 mm. A majority of the respondents (85%) encounter unwanted needle bending upon insertion. The mean maximal encountered unwanted needle bending is 5.3 mm. 3) Needles in interventional radiology need improvement, eg, improved needle visibility and manipulability, according to 95% of the respondents. Added value for steerable needles in current interventions is seen by 93% of the respondents.
Conclusion: Steerable needles have the potential to add clinical value to radiologic interventions. The current data can be used as input for defining clinical design requirements for technical tools, such as steerable needles and navigation models, with the aim to improve needle placement in interventional radiology.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6080661 | PMC |
| http://dx.doi.org/10.2147/MDER.S160444 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Antegrade Fenestration During Thoracic Endovascular Aortic Repair for Preserving Isolated Left Vertebral Artery.
EJVES Vasc Forum
October 2024
Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Article Synopsis
- An isolated left vertebral artery (ILVA) is often affected by aortic arch pathologies, and preserving its blood flow during endovascular repair can be challenging, with no clear consensus on the best strategy.
- This case report details a successful endovascular procedure in a 72-year-old man with an ILVA, where a novel technique called antegrade needle-assisted fenestration was used to revascularize the artery without traditional surgical methods.
- The patient had a favorable outcome, with follow-up imaging showing a patent ILVA and good aortic remodeling, suggesting this technique could be a valuable option for similar cases.
Comparison of curved and straight tip radiofrequency cannula deflection in a ballistic model.
Interv Pain Med
September 2024
Department of Rehabilitation Medicine, Cornell University Medical Center, USA.
Article Synopsis
- * Six different types of cannulae (18, 20, and 22 gauge) were tested to measure deflection at depths of 40 mm and 80 mm, revealing that curved cannulae showed significantly more deflection compared to straight ones.
- * The findings highlight the importance of cannula shape for interventionalists, suggesting that curved tips provide better maneuverability and should be considered for procedures that require precise placement.
In Vivo Feasibility Study: Evaluating Autonomous Data-Driven Robotic Needle Trajectory Correction in MRI-Guided Transperineal Procedures.
IEEE Robot Autom Lett
October 2024
Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Article Synopsis
- This study focuses on improving accuracy in MRI-guided transperineal needle placement for prostate cancer diagnosis and treatment.
- It introduces a new method for needle steering using a data-driven, closed-loop strategy with shape sensing technology that does not depend on specific parameters.
- In an animal model, this approach showed a notable increase in targeting precision, achieving a mean target error of only 2.2 ± 1.9 mm on the first try, marking a key advancement for future clinical applications.
Automatic Path-Planning Techniques for Minimally Invasive Stereotactic Neurosurgical Procedures-A Systematic Review.
Sensors (Basel)
August 2024
Sheikh Zayed Institute of Pediatrics Surgical Innovation, Children's National Hospital, Washington, DC 20010, USA.
Article Synopsis
- This review examines the last ten years of research on path-planning algorithms used in stereotactic neurosurgery, focusing on tools like straight and steerable needles and concentric tube robots.* -
- A multidisciplinary team conducted a detailed analysis of various algorithms for both single and multi-target scenarios, particularly emphasizing straight tools, and discussed the necessary imaging modalities and anatomical considerations.* -
- The review highlights future trends and gaps in technology, aiming to guide future research and improve the safety and effectiveness of minimally invasive neurosurgical procedures.*
A Telescopic Tendon-Driven Needle Robot for Minimally Invasive Neurosurgery.
Rep U S
October 2023
Department of Mechanical Engineering, University of California Riverside, Riverside, CA 92521, USA.
This paper presents the design, characterization, and testing of a steerable needle robot for minimally invasive neurosurgery. The robot consists of a rigid outer tube and two telescopic tendon-driven steerable tubes. Through the rotation, translation, and bending of individual tubes, this telescopic tendon-driven needle robot can perform dexterous motion and follow the path of the tip.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!