Michael Swikehardt, MD
Imaging, explained

Understand the scan.
Know your next step.

An imaging exam should answer a clinical question. Learn what the test involves, prepare your questions, and contact the imaging team you choose. This page helps you prepare—it does not select or order an examination.

The basics

Different tools.
Different questions.

These are brief introductions. Your ordering clinician and imaging team decide which examination, protocol and preparation fit your situation.

01 / MAGNETIC RESONANCE

MRI

MRI uses a strong magnetic field and radio waves, not ionizing radiation. It can provide detailed views of organs, joints and other soft tissues.

Before you go: discuss implants or metal, claustrophobia, possible pregnancy and any previous contrast reaction. Ask whether your particular exam needs contrast or other preparation.

MRI patient information · ACR / RSNA ↗
02 / COMPUTED TOMOGRAPHY

CT

CT combines x-ray measurements into cross-sectional images. It can help evaluate organs, bones and blood vessels; some examinations use IV or oral contrast.

Before you go: ask about contrast and preparation. Tell the team about possible pregnancy, kidney problems or a previous contrast reaction.

CT patient information · ACR / RSNA ↗
03 / SOUND WAVES

Ultrasound

Ultrasound uses sound waves to create images without ionizing radiation. Depending on the exam, it can show organs, soft tissues and blood flow.

Before you go: preparation varies. Some examinations need fasting or a full bladder; use the instructions provided for your specific appointment.

Ultrasound patient information · ACR / RSNA ↗
04 / RADIOGRAPHS

X-ray

X-ray examinations use ionizing radiation to create images. Bone and joint x-rays are commonly used to evaluate injuries, alignment and other skeletal concerns.

Before you go: tell the team if pregnancy is possible or if positioning is difficult. The requested body part and views determine how the exam is performed.

Bone x-ray information · ACR / RSNA ↗
05 / BREAST IMAGING

Mammography

Mammography uses low-dose x-rays to examine breast tissue. Screening and diagnostic examinations serve different purposes. A new symptom should be discussed with the clinical or imaging team rather than treated as a routine screening request.

Before you go: ask about the right appointment type and transferring earlier breast images for comparison.

Mammography information · ACR / RSNA ↗
06 / BONE HEALTH

Bone density / DXA

A DXA scan uses a low dose of x-rays to measure bone mineral density, commonly at the hip and spine. The result helps the clinician assess bone health and fracture risk.

Before you go: ask about comparison with previous scans and any instructions involving supplements or recent contrast examinations.

Bone density information · ACR / RSNA ↗
Your report is part of a conversation. Ask who will review the findings with you, when to expect that discussion, and what follow-up may be needed. Follow the imaging facility’s instructions rather than using this overview as a preparation protocol. Do not delay urgent medical care to arrange a routine scan.
Take it with you

A guide for your imaging visit.

Choose the examination you are discussing. Make a checklist to print, save, or email to yourself. No name, date of birth or medical record is needed, and this tool does not submit the guide to a clinic.

Download saves a text file. “Print / Save as PDF” opens your browser’s print dialog. Email opens your email app so you can select the recipient. Nothing is emailed automatically.

Local imaging resources

Ready to contact
an imaging office?

Use the office’s own scheduling channels. Confirm the order or referral, examination, insurance requirements, location and preparation directly with that team.

External resources, not an appointment booked through One Door. You may use the imaging facility you and your clinician choose. Availability, clinical suitability and insurance coverage are determined by the treating team and facility. Office details are listed on Pueblo’s contact page and the Women’s Imaging Center website.

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