CT uses X-rays to create detailed images of organs and tissues. MRI employs radio waves and magnets to generate body images. Both methods require patients to lie still in doughnut-shaped devices
CT scan uses X-rays and computer to create detailed body images. Machine rotates around patient while patient lies on movable table. Procedure takes about 30 minutes, usually same-day discharge
Diaphragm is a parachute-shaped muscle separating chest and abdomen. Right dome is larger than left, anchored to ribs and spine. Contains three major openings for major vessels and nerves. Located between thoracic and abdominal cavities
Osteomyelitis is bacterial infection of bone's medullary cavity. Most common between 2-12 years, affecting males 3:1 ratio. Staphylococcus aureus causes 80-90% of infections
MRI uses strong magnetic fields and radio waves to create body images without radiation. Hydrogen atoms in tissues generate signals that are detected by RF antennas. MRI provides better contrast than CT for soft tissues
Attenuation is the gradual loss of flux intensity through a medium. Measured in decibels (dBs) and represented by attenuation coefficient. Often follows Beer-Lambert law with exponential path length dependence