The earliest examples of canopic jars come from the 4th dynasty tomb of Queen Meresankh III at Giza, from the reign of Menkaure. The canopic chests which held the jars were cut from soft stone, or carved from the actual wall or floor of the tomb. However, from the 6th Dynasty, granite examples have been discovered in royal tombs which were sunk into pits in the floor at the southeast foot of the sarcophagus.
1. Bright spots: Kidney stones show up on ultrasound as bright echogenic foci (white spots) within the substance of the kidney. If the stones are larger than 3 or 4 mm there will be a darker area behind the stone representing an acoustical shadow.. Bright spots: Kidney stones show up on ultrasound as bright echogenic foci (white spots) within the substance of the kidney. If the stones are larger than 3 or 4 mm there will be a darker area behind the stone representing an acoustical shadow.
A kidney ultrasound is a noninvasive diagnostic exam that produces images, which are used to assess the size, shape, and location of the kidneys. Ultrasound may also be used to assess blood flow to the kidneys. Ultrasound uses a transducer that sends out ultrasound waves at a frequency too high to be heard. The ultrasound transducer is placed on the skin, and the ultrasound waves move through the body to the organs and structures within. The sound waves bounce off the organs like an echo and return to the transducer.