Reading path

Reading Medical Imaging and Radiology Evidence

This path shows how imaging decisions are justified, from which scan the evidence supports to how radiation risk, incidental findings, and structured reporting are handled. It is for readers who want to understand a radiology report and appraise the studies behind screening scans and imaging AI.

The path, step by step

1. 1 How the ACR Appropriateness Criteria Turn Evidence Into an Imaging Recommendation

   5 min read

   Begin with how evidence is turned into a recommendation about which scan to order, the decision that precedes any image.

2. 2 What ALARA Really Means and How to Read a CT Radiation Dose

   5 min read

   Next learn how radiation dose is actually measured, so the benefits of imaging can be weighed against a real cost.

3. 3 Do CT Scans Cause Cancer? How to Weigh the Linear No Threshold Model

   5 min read

   Extend dose into risk by weighing the model that projects cancers from CT scans and why it is a model, not a count.

4. 4 Incidentalomas, How Radiologists Decide What Is Worth Chasing

   4 min read

   See how imaging routinely finds unexpected spots, and how radiologists decide which ones are worth pursuing.

5. 5 How Lung-RADS Turns a Lung Nodule Into a Management Plan

   5 min read

   Watch a structured reporting system turn one such finding, a lung nodule, into a defined management plan.

6. 6 Why a BI-RADS 4 Mammogram Is Not a Diagnosis

   4 min read

   Learn to read a reporting category as a probability rather than a verdict, using the breast imaging scale as the example.

7. 7 The Evidence Behind Lung Cancer Screening: NLST, NELSON, and Number Needed to Screen

   5 min read

   Move to screening evidence and see how the landmark trials and number needed to screen justify scanning healthy people.

8. 8 Whole Body MRI Screening: What the Evidence Says About Scanning Healthy People

   4 min read

   Contrast that with a marketed scan that lacks such evidence, sharpening the difference between tested and untested screening.

9. 9 The First Randomized Trial of AI in Mammography: Reading the MASAI Results

   5 min read

   Turn to imaging AI through the first randomized trial testing it in mammography, the strongest kind of evidence available.

10. 10 How to Judge an FDA Cleared Radiology AI Tool

    5 min read

    Finish with a practical framework for appraising any cleared radiology AI tool, carrying the path from evidence to daily judgment.

Each step is a full article on the Reading the Evidence blog.

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