Medical Imaging Techniques

Which of the following types of exams does not emit radiation?

What is the minimum number of views required at 90 degree angles to reconstruct a 3D image?

Which of the following combinations of views is most commonly used to reconstruct a 3D image?

What gives a grey/white appearance in X-ray imaging?

What gives a white appearance in X-ray imaging?

What color does air appear as in X-ray imaging?

Which tissue appears as varying degrees of grey in X-ray imaging?

Who is at most risk for radiation effects?

What should be considered when the radiology department is using an iodinated contrast media?

What is a potential concern when using iodinated contrast media?

What is a characteristic of most newer contrast media?

Types of Exams and Radiation

Ultrasound and MRI do not emit radiation during their procedures.

3D Imaging and Views

A minimum of two views at 90-degree angles is required to reconstruct a 3D image.
The most commonly used combination for 3D image reconstruction includes two orthogonal views, such as axial and coronal.

X-Ray Imaging Appearance

Tissues with high density appear white on X-ray imaging; this includes bones and metals.
Air appears black in X-ray imaging due to its low density.
Soft tissues appear as varying degrees of grey depending on their density.

Radiation Risks

Pregnant women and children are at the most risk for radiation effects due to their developing cells and tissues.

Iodinated Contrast Media Considerations

The patient's kidney function should be assessed before using iodinated contrast media to prevent potential kidney damage.
Allergic reactions are a potential concern when using iodinated contrast media, including symptoms like hives or anaphylactic reactions.

Newer Contrast Media

Most newer contrast media are designed to be less likely to cause allergic reactions and are often non-ionic, which enhances patient safety and comfort.

Test your knowledge of medical imaging techniques with this quiz. Identify which types of exams do not emit radiation and which imaging technique uses high-frequency sound waves to create images.