WebJul 4, 2024 · Fever remained unexplained in 11/50 (22%) patients. 18 F-FDG-PET/CT scan substantially contributed to the diagnosis in 70% of the patients, either by identifying the underlying cause of FUO or by directing to the most appropriate site for biopsy. Sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value ... WebOct 1, 2024 · Low-dose CT denoising has been studied to reduce radiation exposure to patients. Recently, deep learning-based techniques have improved the CT denoising performance, but it is difficult to reflect the characteristics of signals concerning different frequencies properly.
Deep learning based dictionary learning and tomographic image ...
WebApr 9, 2024 · The dictionary learning training set can be obtained from the CT images reconstructed by filtering the back-projection algorithm in the standard dose scene. The global dictionary can be trained by extracting two-dimensional image blocks or an adaptive dictionary jointly estimated with low-dose CT images. WebApr 11, 2024 · Industrial CT is useful for defect detection, dimensional inspection and geometric analysis, while it does not meet the needs of industrial mass production because of its time-consuming imaging procedure. This article proposes a novel stationary real-time CT system, which is able to refresh the CT-reconstructed slices to the detector frame … can i use my nails like a knife
Sensors Free Full-Text Low-Dose Computed Tomography …
WebAiming at reducing computed tomography (CT) scan radiation while ensuring CT image quality, a new low-dose CT super-resolution reconstruction method based on combining a random forest with coupled dictionary learning is proposed. The random forest classifier finds the optimal solution of the mapping relationship between low-dose CT (LDCT) … WebNov 1, 2014 · Here we propose a novel image reconstruction method for low-dose x-ray CT according to dictionary learning theory. A sparse constraint on a redundant dictionary … WebAug 12, 2024 · Low-dose cone-beam CT (LD-CBCT) reconstruction for image-guided radiation therapy (IGRT) by three-dimensional dual-dictionary learning Ying Song, Weikang Zhang, Hong Zhang, Qiang Wang, Qing Xiao, Zhibing Li, Xing Wei, Jialu Lai, Xuetao Wang, Wan Li, Quan Zhong, Pan Gong, Renming Zhong & Jun Zhao can i use my nectar card at homebase