Items tagged “biopsy”
4 results found
Article
Fine needle aspiration (FNA)
Fine needle aspiration (FNA) is a type of minimally-invasive tissue sampling. It often uses ultrasound as a targeting instrument, although CT and even MRI or fluoroscopy could potentially be used, depending on the situation. Imaging guidance is particularly useful when sampling deep or diffuse l...
Article
Ultrasound-guided FNA of the thyroid
Ultrasound-guided fine needle aspiration (FNA) of the thyroid refers to a minimally invasive procedure where in which tissue samples are collected from a thyroid nodule or other suspicious thyroid lesion. It is usually done on an outpatient basis and generally complications are very minimal.
Pr...
Article
Patent track sign (ultrasound)
Patent track sign is a finding on color Doppler ultrasound, representing blood traveling along the course a biopsy needle track. It can occur after a biopsy of any organ, but is more often seen after liver or kidney biopsies.
Radiographic findings
linear color Doppler flow along the course of ...
Article
Chiba needle
The Chiba needle is one of the most commonly used biopsy/percutaneous access needles. It is a two-part hollow needle with a beveled tip angled at 30 degrees. The inner stylet (which is also beveled) is removable. The beveling of the Chiba needle results in superior steering compared to conventio...