Magnetic Resonance Imaging

What does the body contain?

• tissues, water, fat, carbohydrates, amino acids, and lots of hydrogen

• light, weighted tissues, fat, proteins, and lots of hydrogen

• light tissues, amino acids, water, and lost of hydrogen

• weighed tissues, proteins, fat, water, and lots of hydrogen

MRI scanner contains:

• 1 or 2 Tesla

• 1.5 or 3 Tesla

• 2 or 3 Tesla

• 0.5 to 2 Tesla

How are MRI images generated?

• An electric current creates a hydrogen bond that's measured and converted to a signal that gives you the MRI images

• The hydrogen bond vibrates, creating an electric current that gets recorded and converted to a signal that gives you the MRI images

• The hydrogen bond creates an electric charge that's measured and converted to a signal that gives you the MRI images

• An electric current creates am electric charge that's measured and converted to a signal that gives you the MRI images

Hydrogen=

• 1 proton and 1 electron; proton rotates along its axis

• 2 protons and 2 electrons; protons rotate along its axis

• 1 proton and 2 electrons; electrons rotate along its axis

• 2 protons and 1 electron; electron rotates along its axis

Moving electric charge creates a ___ on MRI

• magnetic charge that’s randomly distributed and cancel each other out

• magnetic field that’s randomly distributed and cancel each other out

• magnetic charge that’s aligned and compliment each other out

• magnetic field and that’s aligned and compliment each other out

Most electric charges end up _____ and few aren’t in MRI

• together

• distributed

• aligned

• separated

A ____is imposed to realign again with the magnetic field (happens differently based on the tissue)

• hydrogen charge; measurements of these realignments are converted to images

• electric charge; measurements of these realignments rates are converted to a signal

• electron; measurements of these realignments are converted to images

• hydrogen proton ; measurements of these realignments rates are converted to a signal

Imaging sequences: the basic measurement (s) are:

• T1 and T2 weighted sequences

• T1 weighted sequence

• T2 weighted sequence

• T2 and T3 weighed sequences

The image sequences have different names based on different

• countries

• vendors

• states

• all the above

Names of imaging sequences:

• T1, T2, saturated images, contrast images

• T0, T1, saturated images, contrast images

• T1, T2, fat saturation images, post contrast images

• T2, T3, fat saturation images, post contrast images