What is a voiding cystourethrogram (VCUG)? A voiding cystourethrogram (VCUG) allows us to evaluate your child's urethra and bladder size, shape, and capacity. This procedure uses x-rays and a contrasting agent that is administered by catheter into your childâs bladder. A VCUG can also help us determine whether your child has reflux â a condition where urine from the bladder goes upward back to the kidneys.
Finally, after five years of searching, on August 30, 1992, Jewitt and Luu announced the Discovery of the candidate Kuiper belt object (15760) 1992 QB1. Six months later, they discovered a second object in the region, (181708) 1993 FW.
Sizes and Colors. The largest two Kuiper Belt Objects are Pluto and Eris, each with a diameter of about 1,400 miles (2,380 kilometers). There are six other known KBOs with diameters that are approximately 600-900 miles (1,000-1,500 kilometers), including Charon.luto is in some ways a typical Kuiper Belt Object, but in other ways quite exceptional. The Kuiper Belt consists of myriad worlds with average orbital distances of about 30 to 50 AU from the Sun-that is, beyond the orbit of Neptune.