CT Abdomen - Read Like A Radiologist

How to use this module
This module is an active learning activity. The images, questions, and reflections are primarily intended to get your thought process started.

Approach

1. Keep a pen and paper handy, or open a text document on your computer.
2. For each case, first read the clinical information, then carefully review the CT images.
3. Answer the questions yourself FIRST — write down your answers — before reading the answers/discussion.
4. Compare your answer and reasoning with the model answer. Reflect not only on the correctness of your answer but also on the reasoning behind it.
5. Answer the reflection questions honestly: they help you learn in a targeted way.
6. Save your answers and learning goals. You can use them during a teaching session or a practicum day, or discuss them with a radiologist in your environment.

Students at the Faculty of Health, Medicine and Life Sciences (Maastricht) bring their answers and learning goals to the Radiology – CT abdomen practical session.
 

Systematic assessment versus 'diagnostic guessing'

As an inexperienced reader, you may (unconsciously) be guided by clinical information: based on the patient's presentation, a diagnosis is often suspected before the images are properly reviewed. As a result:

• The images are not always reviewed completely or systematically;
• Tunnel vision can occur 
• You often cannot accurately describe what is actually visible
• Unexpected, sometimes more clinically relevant findings are overlooked.

This increases the risk of diagnostic errors and missed findings.
How do you prevent this? Review each image systematically and thoroughly, and describe what you see before making a diagnosis. Clinical correlation remains essential — but should supplement the analysis, not guide it beforehand.

Key message: first look and describe systematically, then correlate clinically.

1. Reflection question

“What do you currently find most challenging or most uncertain about when assessing a CT abdomen?”

Write down your answer. You will return to it at the end of the module.
There is no right or wrong answer — it's about your starting point.
 

Densities & scan phases: see next page