The authors describe an artifact noted on ultrasound-guided FNA specimens and the artifact was proven to be associated with certain types of ultrasound gel media.
One of the largest single-center studies comparing the yield and complication rate of 2,138 kidney biopsies was performed by Nephrologists in a tertiary care teaching institute in India. The patient demographic ranged from pediatric to adult and the kidney biopsy types included native, graph and transplanted organs. During the first observational period spanning April 2004 – December 2010, 1,510 ultrasound-guided biopsies were performed by Nephrologists with the imaging support of a Radiologist and without the use of a biopsy needle guide device. During the second period of evaluation, January 2011 – March 2013, 628 renal biopsies were performed solely by Nephrologists using both real-time ultrasound imaging ultrasound systems and Ultra-Pro II™ needle guide.