Details

Autor(en) / Beteiligte

• Mani, Aravind
• Napel, Sandy
• Paik, David S
• Jeffrey, Jr, R Brooke
• Yee, Judy
• Olcott, Eric W
• Prokesch, Rupert
• Davila, Marta
• Schraedley-Desmond, Pamela
• Beaulieu, Christopher F

Titel

Computed tomography colonography: feasibility of computer-aided polyp detection in a "first reader" paradigm

Ist Teil von

• Journal of computer assisted tomography, 2004-05, Vol.28 (3), p.318-326

Ort / Verlag

United States

Erscheinungsjahr

2004

Quelle

MEDLINE

Beschreibungen/Notizen

• : To determine the feasibility of a computer-aided detection (CAD) algorithm as the "first reader" in computed tomography colonography (CTC). : In phase 1 of a 2-part blind trial, we measured the performance of 3 radiologists reading 41 CTC studies without CAD. In phase 2, readers interpreted the same cases using a CAD list of 30 potential polyps. : Unassisted readers detected, on average, 63% of polyps > or =10 mm in diameter. Using CAD, the sensitivity was 74% (not statistically different). Per-patient analysis showed a trend toward increased sensitivity for polyps > or =10 mm in diameter, from 73% to 90% with CAD (not significant) without decreasing specificity. Computer-aided detection significantly decreased interobserver variability (P = 0.017). Average time to detection of the first polyp decreased significantly with CAD, whereas total reading case reading time was unchanged. : Computer-aided detection as a first reader in CTC was associated with similar per-polyp and per-patient detection sensitivity to unassisted reading. Computer-aided detection decreased interobserver variability and reduced the time required to detect the first polyp.