ULDor: A Universal Lesion Detector for CT Scans with Pseudo Masks and Hard Negative Example Mining

Understand

Automatic lesion detection from computed tomography (CT) scans is an important task in medical imaging analysis.

• It is still very challenging due to similar appearances (e.g.
• intensity and texture) between lesions and other tissues, making it especially difficult to develop a universal lesion detector.
• Instead of developing a specific-type lesion detector, this work builds a Universal Lesion Detector (ULDor) based on Mask R-CNN, which is able to detect all different kinds of lesions from whole body parts.