Detection of small pancreatic ductal adenocarcinoma: The potential of cinematic rendering in earlier lesion detection.

Small pancreatic ductal adenocarcinomas (PDACs) generally have a more favorable prognosis; however, up to 40 % may be missed on CT scan. Cinematic rendering (CR) is a novel three-dimensional post-processing technique that accentuates subtle textural differences and holds the potential to improve detection of small tumors. It utilizes a complex global lighting model generating photorealistic images with enhanced visualization of shadows and texture based on volumetric scalar fields (Hounsfield units). While CR has been studied for pre-surgical planning and vascular anatomy assessment, its role in detecting small PDACs remains underexplored. This pictorial essay highlights the potential of CR in detecting small PDACs and differentiating surface textures, while also addressing its limitations and future directions.