Ch 1: x-rays

Question 1

who is wilhelm conrad roentgen

Answer 1

german physicist known as the father of medical imaging. the first x-ray was of his wife’s hand in 1895.

Question 2

when and why did x-rays become widespread?

Answer 2

by 1900 for early tuberculosis detection

Question 3

what kind of tissue did xrays show?

Answer 3

only detail on hard tissue like bones that reflect radiation, making them similar to photographs

Question 4

when did xrays become more advanced?

Answer 4

20th century, during ww2

Question 5

what is a CAT scan?

Answer 5

computed axial tomography (1970s). A procedure that uses a computer linked to an x-ray machine to make a series of detailed pictures of areas inside the body. 3D views of tissues and organs.

Question 6

what is a PET scan?

Answer 6

position emission tomography. tests the efficiency of drugs, attaches a radioactive isotope to a specific molecule. checks for disease in your body

Question 7

what is an ultrasound?

Answer 7

uses echoes of sound waves sent into the body. No radiation used. can make sound

Question 8

what is an MRI?

Answer 8

magnetic resonance imaging. uses magnetic fields and radio pulses, useful for soft tissue, 3D image. fmri is functional mri for brain images, active areas light up.