Which is a window setting used to visualize subtle liver lesions?

Edge Gradient artifact can be described as

The arteriovenous iodine difference is calculated by

The phase of liver enhancement that occurs 60 to 70 seconds after an IV bolus contrast injection is called the

An adrenal mass that measure less than or equal to 10 HU on unenhanced CT

This is an image of a line pairs phantom.  The phantom is used to assess:

Contrast reactions that are accompanied by a temporary drop in blood pressure, bronchospasms, facial edema, urticaria, and laryngeal edema are generally classified as

The relationship between mAs and dose is

LOCM is measured by

The still viable ischemic cerebral tissue that surrounds the infarct core in a patient with an acute stroke is termed the: