What is a contrast x-ray?

Answer Organic contrast media--either injected or swallowed--has been commonly used in conjunction with X-rays since the 1950s. Contrast media is an excellent way to detect masses and structural abnormali... Read More »

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Which is better: 3000000:1 contrast ratio tv or 150000:1 contrast ratio?

3000000:1 is technically better (higher the better).However, do not trust the advertised contrast ratio of TVs. It now means nothing. (It was useful when brands didn't cheats a few years ago, but n... Read More »

Spinal MRI Contrast Vs Non Contrast?

According to the American College of Radiology (ACR), an MRI, or Magnetic Resonance Imaging, is a diagnostic tool that can be performed with or without contrast. A spinal MRI helps a doctor to dete... Read More »

What is the contrast used in an MRI?

Gadolinium is a contrast dye commonly used in magnetic resonance imaging, or MRI. This contrast agent is injected intravenously prior to an MRI test and helps the radiologist better visualize the r... Read More »

What is a phase contrast microscope?

A phase contrast microscope is a type of microscope that utilizes a phase plate to alter the wavelength of light in order to show transparent objects more clearly by increasing their contrast to th... Read More »