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.
The Kuiper belt is somewhat similar to the asteroid belt (with its rocky, metallic chunks), but the objects are made mostly of ice and frozen gases. This area of the solar system is large and difficult to assess as the objects in it are so far away and are, in general, quite small.here is some 20 to 200 times more mass in the Kuiper belt than in the asteroid belt. As the Kuiper belt is the group of trans-Neptunian objects out to the margin stated, Pluto spends most of its 248-year solar orbital time in the Kuiper belt.