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Purpose |
Detect polyps greater than six millimeters |
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Tag(s) |
#C-RADS |
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Panel |
Abdominal |
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Define-AI ID |
18020002 |
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Originator |
Beth McFarland |
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Panel Chair |
Arun Krishnaraj |
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Panel Reviewers |
Abdominal Panel |
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License |
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| Status | Published |
Colorectal polyps are precursors to cancer that can be detected with imaging and then removed by optical colonoscopy to prevent cancer development. CT colonography (CTC) provides a minimally invasive structural exam of the colon and rectum to detect clinically significant polyps; however, less experienced radiologists can miss polyps and take excessive time to complete the exam. AI could help improve accuracy and efficiency of polyp detection at CTC, reduce false positives, and reduce medical legal risk for radiologists.
A 50-year-old patient presents for first-time colorectal screening by CTC. An algorithm evaluates the colon for detection of polyps larger than 6 mm in maximal diameter. The radiologist is informed of this categorization at the time of the interpretation.
Images are obtained by CT and sent to the 3D workstation/PACS and AI engine. Images are analyzed by the engine. The size, number, and location of polyps larger than 6 mm are identified. A message is sent to PACS from the engine with the classification information.
Procedures(s): {CT colonography, pelvis/abdomen, low dose screening, without contrast}
View(s): {Supine, prone, right lateral decubitus, left lateral decubitus}
Indication: Colorectal screening
Colon Anatomy: {Nonredundant, redundant, very redundant}
Colon Surgery: Colon segments excised
Inflammatory Bowel Disease: {Crohn disease, ulcerative colitis}
Tagging: Stool tagging
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Procedure |
CT colonography, pelvis/abdomen, low-dose screening, without contrast |
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Views |
Supine, prone, right lateral decubitus, left lateral decubitus |
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Data Type |
DICOM |
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Modality |
CT |
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Body Region |
Abdomen |
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Anatomic Focus |
Colon |
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RadElement ID |
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Definition |
Detection of polyps ≥ 6 mm |
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Data Type |
Categorical |
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Value Set |
0–Unknown 1–Zero polyps > 6 mm 2–One polyp > 6 mm 3–Two or more polyps > 6 mm |
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Units |
N/A |