Unknown

Dataset Information

0

3-D ultrasound-guided robotic needle steering in biological tissue.


ABSTRACT: Robotic needle steering systems have the potential to greatly improve medical interventions, but they require new methods for medical image guidance. Three-dimensional (3-D) ultrasound is a widely available, low-cost imaging modality that may be used to provide real-time feedback to needle steering robots. Unfortunately, the poor visibility of steerable needles in standard grayscale ultrasound makes automatic segmentation of the needles impractical. A new imaging approach is proposed, in which high-frequency vibration of a steerable needle makes it visible in ultrasound Doppler images. Experiments demonstrate that segmentation from this Doppler data is accurate to within 1-2 mm. An image-guided control algorithm that incorporates the segmentation data as feedback is also described. In experimental tests in ex vivo bovine liver tissue, a robotic needle steering system implementing this control scheme was able to consistently steer a needle tip to a simulated target with an average error of 1.57 mm. Implementation of 3-D ultrasound-guided needle steering in biological tissue represents a significant step toward the clinical application of robotic needle steering.

SUBMITTER: Adebar TK 

PROVIDER: S-EPMC5545809 | biostudies-other | 2014 Dec

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC4409936 | biostudies-literature
| S-EPMC4115182 | biostudies-literature
| S-EPMC7016187 | biostudies-literature
| S-EPMC6726124 | biostudies-literature
| S-EPMC9622440 | biostudies-literature
| S-EPMC7610639 | biostudies-literature
| S-EPMC7534001 | biostudies-literature
| S-EPMC8341188 | biostudies-literature
| S-EPMC4761800 | biostudies-literature
| S-EPMC3981557 | biostudies-literature