Localization Accuracy of Ultrasound-Actuated Needle with Color Doppler Imaging

Abstract

An ultrasonic needle-actuating device for tissue biopsy and regional anaesthesia offers enhanced needle visibility with color Doppler imaging. However, its specific performance is not yet fully determined. This work investigated the influence on needle visibility of the insertion angle and drive voltage, as well as determined the accuracy and agreement of needle tip localization by comparing color Doppler measurements with paired photographic and B-mode ultrasound measurements. Needle tip accuracy measurements in a gelatin phantom gave a regression trend, where the slope of trend is 0.8808; coefficient of determination (R2) is 0.8877; bias is −0.50 mm; and the 95% limits of agreement are from −1.31 to 0.31 mm when comparing color Doppler with photographic measurements. When comparing the color Doppler with B-mode ultrasound measurements, the slope of the regression trend is 1.0179; R2 is 0.9651; bias is −0.16 mm; and the 95% limits of agreement are from −1.935 to 1.605 mm. The results demonstrate the accuracy of this technique and its potential for application to biopsy and ultrasound guided regional anaesthesia.

The Use of Pneumocystography for Navigation of Stereotaxic Core-needle Biopsy in Complex Breast Cysts: Case Report

“…In addition, US-guided CNB is characterized by such technical obstacles as difficult positioning in a bulky and/or pendulous breast, imitation of a biopsy needle by linear hyperechoic structures reflecting Cooper's ligaments, and the loss of ICN visualization after fine-needle aspiration of a liquid component [10,19].…”

Precision Imaging Guidance in the Era of Precision Oncology: An Update of Imaging Tools for Interventional Procedures

“…It shows several benefits: first of all, the wide availability, the limited costs, and the possibility to be performed at the patient’s bed, which is particularly important in critically ill patients in the intensive care unit who cannot be moved to the IR department. It provides real-time guidance during any procedure [ 42 ], visualizing the course of needles or catheters for biopsies and interventional procedures. Other main advantages are the absence of ionizing radiation, which makes it a suitable procedure also for pediatric patients and pregnant women, and the reduced required procedural time when compared to CT-guided approaches.…”

Diagnosis of complex breast cysts using X-ray pneumocystography and endoscopic mammocystoscopy

“…Навігаційні можливості ультразвуку втрачаються в разі зникнення ехографічної візуалізації ККГЗ, що часто відбувається в процесі тонкоголкової аспірації рідинного компонента, або помітно знижуються у випадках імітації пункційної голки лінійними гіперехогенними структурами, індукованими зв'язками Купера, а також при позиціонуванні ВКНУ в об'ємній, нефіксованій ГЗ [10,11].…”