Stefan Tigges on Radiopaedia.org

Stefan Tigges

Professor of Radiology, Emory University School of Medicine

Thoracic Radiologist interested in education and using comics/drawing to teach. No pharmaceutical or medical device conflict of interest.

Disclosures:
  • Nothing to disclose
169 results found
Question

Question 2648

What is the most likely cause of this large bowel obstruction?

Question

Question 2649

Given the CT findings, what stage is this colon cancer?

Question

Question 2650

Given the CT findings, what is the T status of this pancreatic cancer?

Question

Question 2651

Where is the abnormal air located?

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Question 2652

Occlusion of what vessel best accounts for the abnormal air collections?

Question

Question 2653

What finding on this scan indicates active bleeding?

Question

Question 2654

What is the most likely complication of this injury?

Question

Question 2655

What direction of force is responsible for this injury pattern?

Question

Question 2656

What artery is most at risk of injury in this blunt trauma patient?

Question

Question 2657

What is the most likely etiology of the vascular abnormality shown?

Question

Question 2658

What is the most likely etiology of the vascular abnormality shown?

Question

Question 2697

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with lung cancer will test positive?

Question

Question 2698

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with lung cancer will test negative?

Question

Question 2699

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person without lung cancer will test negative?

Question

Question 2700

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person without lung cancer will test positive?

Question

Question 2701

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with a positive test will have lung cancer?

Question

Question 2702

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with a positive test will not have lung cancer?

Question

Question 2703

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with a negative test will not have lung cancer?

Question

Question 2704

A diagnostic test for lung cancer has the following metrics:

Positive Predictive Value=60%

Negative Predictive Value=70%

Sensitivity=80%

Specificity=90%

What is the probability that a person with a negative test will have lung cancer?

Question

Question 2705

As prevalence increases, what happens to sensitivity?