Figure 1.
Virtual colonoscopy technique – air insufflation, supine and prone MDCT and single breathhold.
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Figure 2.
Multi-stage analysis using CAD system – locate air- and fluid-filled parts of colon, analyze surface shape of colon, locate entire 3-D borders of polyp candidates and distinguish true and false positive polyp candidates.
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Figure 3.
Illustration of various colons.
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Figure 4.1.
A photograph of a 1.4 cm transverse colon polyp in 64-year-old woman.
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Figure 4.2.
An illustration of a 1.4 cm transverse colon polyp in 64-year-old woman.
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Figure 4.3.
An illustration of a 1.4 cm transverse colon polyp in 64-year-old woman.
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Figure 5.1.
A photograph an 0.8 cm sigmoid colon polyp in a 60-year-old man.
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Figure 5.2.
An illustration an 0.8 cm sigmoid colon polyp in a 60-year-old man.
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Figure 5.3.
An illustration an 0.8 cm sigmoid colon polyp in a 60-year-old man.
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Figure 6.1.
A photograph of a 0.6 cm transverse colon polyp in a 65-year-old man.
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Figure 6.2.
An illustration of a 0.6 cm transverse colon polyp in a 65-year-old man.
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Figure 6.3.
An illustration of a 0.6 cm transverse colon polyp in a 65-year-old man.
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Figure 7.
Illustration of false negatives – air-fluid boundary and on or adjacent to haustral folds.
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Figure 8.
Illustration of false positives – ileocecal valves and haustral folds.
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Figure 9.
CAD illustration.
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