In IEEE transactions on medical imaging ; h5-index 74.0
Computed tomography (CT) is widely used in clinical medicine, and low-dose CT (LDCT) has become popular to reduce potential patient harm during CT acquisition. However, LDCT aggravates the problem of noise and artifacts in CT images, increasing diagnosis difficulty. Through deep learning, denoising CT images by artificial neural network has aroused great interest for medical imaging and has been hugely successful. We propose a framework to achieve excellent LDCT noise reduction using independent operation search cells, inspired by neural architecture search, and introduce the Laplacian to further improve image quality. Employing patch-based training, the proposed method can effectively eliminate CT image noise while retaining the original structure and details, hence significantly improving diagnosis efficiency and promoting LDCT clinical applications.
Shen Jinbo, Luo Mengting, Liu Han, Liao Peixi, Chen Hu, Zhang Yi
2022-Nov-24
