# data[].attributes.headline
High attenuation would have more absorption/scatter, low attenuation would have barely any absorption/scatter. In CT, attenuation is measured in Hounsfield units for the different densities seen in the image.

# data[].attributes.subject
High attenuation would have more absorption/scatter, low attenuation would have barely any absorption/scatter. In CT, attenuation is measured in Hounsfield units for the different densities seen in the image.

# data[].attributes.headline
Tissues like air and water have little attenuation and are displayed as low densities.  Bone has high attenuation and is displayed as high density on CT.  

# data[].attributes.subject
Tissues like air and water have little attenuation and are displayed as low densities.  Bone has high attenuation and is displayed as high density on CT.  

# data[].attributes.headline
Depending on the tissue density of what is being examined, this is what will affect what type of attenuation will take place. For example, tissues like air and water have low denities which will result in low attenuation.

# data[].attributes.subject
Depending on the tissue density of what is being examined, this is what will affect what type of attenuation will take place. For example, tissues like air and water have low denities which will result in low attenuation.

# data[].attributes.headline
Attenuation depends on the energy of the photon & the density of the body part being imaged. It results when the energy of the photon is not strong enough to be transmitted through the body of the patient and gets absorbed into the atoms of their body.

# data[].attributes.subject
Attenuation depends on the energy of the photon & the density of the body part being imaged. It results when the energy of the photon is not strong enough to be transmitted through the body of the patient and gets absorbed into the atoms of their body.

# data[].attributes.headline
attenuation is represented by gray scale appearance in the image and a numerical value that you can measure called Hounsfield unit (HU). the higher the number, the more x-rays the structure absorbs. so a high attenuation structure (eg. bone) will have a higher HU value than low attenuation structures (eg. fat or air)

# data[].attributes.subject
attenuation is represented by gray scale appearance in the image and a numerical value that you can measure called Hounsfield unit (HU). the higher the number, the more x-rays the structure absorbs. so a high attenuation structure (eg. bone) will have a higher HU value than low attenuation structures (eg. fat or air)

# data[].attributes.headline
Hounsfield (1967) developed the first clinical CT on October 1, 1971

# data[].attributes.subject
Hounsfield (1967) developed the first clinical CT on October 1, 1971

# data[].attributes.headline
EMI Research Laboratories accomplished this based on the patented inventions of Godfrey Hounsfield.

# data[].attributes.subject
EMI Research Laboratories accomplished this based on the patented inventions of Godfrey Hounsfield.

# data[].attributes.headline
The main difference between the 1st and 2nd generation CT scanner is that the 1st gen only employs a single detector, while the 2nd gen has multiple detectors.

# data[].attributes.subject
The main difference between the 1st and 2nd generation CT scanner is that the 1st gen only employs a single detector, while the 2nd gen has multiple detectors.

# data[].attributes.headline
First generation scanners only use a single detector and second generation scanners use a row of up to 30 detectors. 

# data[].attributes.subject
First generation scanners only use a single detector and second generation scanners use a row of up to 30 detectors. 

# data[].attributes.headline
2nd Generation CT Scanners are more technologically advanced than the 1st generation. Instead of one rudimentary detector, the 2nd generation scanner contains a row of 30 detectors to pick up the X-ray beam which leads to a more detailed image.

# data[].attributes.subject
2nd Generation CT Scanners are more technologically advanced than the 1st generation. Instead of one rudimentary detector, the 2nd generation scanner contains a row of 30 detectors to pick up the X-ray beam which leads to a more detailed image.

# data[].attributes.headline
First gen takes up 5 minutes per slice, while second gen takes only 5-90 seconds per slice.

# data[].attributes.subject
First gen takes up 5 minutes per slice, while second gen takes only 5-90 seconds per slice.

# data[].attributes.headline
first generation ct scanner has a pencil like x-ray beam, and second generation ct scanner has a fan shaped x-ray beam

# data[].attributes.subject
first generation ct scanner has a pencil like x-ray beam, and second generation ct scanner has a fan shaped x-ray beam

# data[].attributes.body
first and second generation ct scanners have the same tube detector movement: translate-rotate