CT Enterography

An overview of CT enterography as an emerging alternative to traditional fluoroscopy for assessing small bowel disorders.

Course ID: Q00300 Category:
Modalities: , ,


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Targeted CE per ARRT’s Discipline, Category, and Subcategory classification for enrollments starting after February 8, 2023:
[Note: Discipline-specific Targeted CE credits may be less than the total Category A credits approved for this course.]

Computed Tomography: 2.25
Procedures: 2.25
Abdomen and Pelvis: 2.25

Magnetic Resonance Imaging: 1.50
Patient Care: 0.25
Patient Interactions and Management: 0.25
Procedures: 1.25
Body: 1.25

Nuclear Medicine Technology: 1.50
Patient Care: 0.25
Patient Interactions and Management: 0.25
Procedures: 1.25
Endocrine and Oncology Procedures: 0.25
Gastrointestinal and Genitourinary Procedures: 1.00

Radiography: 0.50
Patient Care: 0.25
Patient Interactions and Management: 0.25
Procedures: 0.25
Thorax and Abdomen Procedures: 0.25

Registered Radiologist Assistant: 2.25
Procedures: 2.25
Abdominal Section: 2.25

Sonography: 0.50
Patient Care: 0.25
Patient Interactions and Management: 0.25
Procedures: 0.25
Abdomen: 0.25

Radiation Therapy: 0.50
Patient Care: 0.25
Patient and Medical Record Management: 0.25
Procedures: 0.25
Treatment Sites and Tumors: 0.25


  1. Introduction
  2. CT Enterographic Technique
  3. Crohn Disease
  4. Ulcerative Colitis
  5. GI Tract Bleeding
  6. Small Bowel Neoplasms
  7. Celiac Disease
  8. Mesenteric Ischemia
  9. Other Findings
  10. Summary


Upon completion of this course, students will:

  1. understand the benefits of capsule endoscopy over CT enterography
  2. be familiar with the advantages of CT enterography
  3. be familiar with the advantages and disadvantages of CT & MR enteroclysis
  4. recognize some of the disadvantages of CT enterography
  5. understand the patient preparation required for CT enterography
  6. learn how to improve visualization of mucosa and achieve better bowel distention
  7. learn proper contrast agent dose and timing for CT enterography
  8. know under what conditions to perform single vs. dual phase CT enterography
  9. recognize the indications for CT enterography
  10. learn the CT criteria that indicate active Crohn disease
  11. be familiar with the appearance of edematous bowel walls
  12. know what CT features are most indicative of Crohn disease
  13. be familiar with the signs that identify chronic, long term Crohn disease
  14. recognize some of the limitations of capsule endoscopy and when it should not be used
  15. know the modality of choice for imaging enteroenteric and enterovesical fistulas
  16. be able to identify a fistula on a CT image
  17. know what condition manifests as a continuous pattern of bowel wall involvement that starts from the rectum, without evidence of slip lesions
  18. know the term for ulcerative colitis that extends from the large bowel to include the terminal ileum
  19. understand colonoscopy’s role in the primary diagnostic stages of small bowel disease
  20. identify some of the characteristics of toxic megacolon
  21. recognize some of the causes of GI tract bleeding
  22. be familiar with the phases of the triple phase CT enterography technique
  23. identify the most common cause of occult GI bleeding
  24. be familiar with conditions which my lead to GI bleeding
  25. understand the limitations in early detection of small bowel neoplasms
  26. recognize the characteristics of benign GIST in the bowel
  27. recognize the characteristics of malignant GIST in the bowel
  28. recognize the characteristic of lymphoma when located in the small bowel
  29. know the condition which is a chronic inflammatory disorder of the small bowel induced in genetically susceptible people by the irritant gluten
  30. name the three most common causes of mesenteric ischemia