Patient presented with pancreas carcinoma with liver metastases. eTRAX is useful for visualization in non-neoplastic liver tissue.
In this clinical case, the lesion is approached using a microconvex probe, with a trajectory that is almost parallel to the ultrasound beam. In such a case, the needle is hardly visible with ultrasound alone.
The authors presented a correlation study using Computed Tomography (CT) that compared the differences between using a freehand and needle-guided ultrasound biopsy technique. The purpose was to assess the accuracy of the needle position in relation to the target and to quantitatively characterize the time required to insert a needle to the target and the number of needle passes required to reach the target using each technique.
In this clinical investigation, the authors conduct a study to evaluate the accuracy and safety of electromagnetic needle tracking for use during ultrasound-guided percutaneous liver biopsy. Using a 16-gauge eTRAX™ Needle Tip Tracking system as a cannula, two 18-gauge tissue cores were retrieved using an automated biopsy needle and an ultrasound system with positioning sensor technology. In total, 23 liver biopsy procedures were performed. The majority of the procedures were completed using an in-plane approach, however, the out-of-plane approach was utilized during cases deemed inconvenient or unsafe for the traditional method.
Ultrasound gel presents a risk of infection when contaminated gel is used in ultrasound-guided needle procedures. Remove the use of gel from ultrasound procedures with Envision.
This case demonstrated that monitoring of electrode tip using VirtuTRAX is feasible and helpful for thyroid RFA. The VirtuTRAX device could increase the accuracy and the outcome of thyroid RFA while reducing the complication rate, shortening the procedure time and learning curve.
Fine needle aspiration (FNA) procedures often use ultrasound gel, which can create artefacts in the specimens and lead to misdiagnosis of the patient or a non-diagnostic sample.
An in vivo swine study was performed to assess the overall targeting accuracy of an ultrasound system with navigation technology, electromagnetic tracking and needle sensor technology embedded within the needle tip and placed a the hub of the needle. The target accuracy of the two techniques was then compared to a free-hand technique. Metallic targets were embedded into the paraspinal muscle, kidneys and liver of the swine model. CT data sets were used in combination with real-time ultrasound imaging to evalaute the Virtual Navigator’s response to respiratory motion and targeting accuracy in a live model.
Abscess drainage under ultrasound guidance has advantages over using other imaging modalities. Real-time visualization of the area of interest and drain placement can be accomplished within a department or portably at the patient bedside. Unfortunately, ultrasound has limitations imaging through air-containing cavitities or behind bone. In this pictorial essay, the authors describe three patient cases where the use of ultrasound and electromagnetic needle tracking, eTRAX™ Needle Tip Tracking System (CIVCO Medical Solutions, Kalona, IA) in combination with image fusion (GE Healthcare LOGIQ E9, Milwaukee, WI) with CT or MRI data sets successfully treat air filled intraabdominal cavity abscesses.
In this article, the authors conducted a pre-clinical trial using a liver phantom with a corresponding CT dataset to evaluate the performance and time efficiency for performing liver interventions under US-guided image fusion using the LOGIQ™ E9 with Volume Navigation (VNAV, GE Healthcare, Chalfont St. Giles, UK) and a 16-gauge eTRAX™ needle tip tracking system.