PMID- 37859296 OWN - NLM STAT- MEDLINE DCOM- 20231023 LR - 20231023 IS - 1879-0534 (Electronic) IS - 0010-4825 (Linking) VI - 150 DP - 2022 Nov TI - Segmentation of kidney mass using AgDenseU-Net 2.5D model. PG - 106223 LID - S0010-4825(22)00931-3 [pii] LID - 10.1016/j.compbiomed.2022.106223 [doi] AB - The Kidney and Kidney Tumor Segmentation Challenge 2021 (KiTS21) released a kidney CT dataset with 300 patients. Unlike KiTS19, KiTS21 provided a cyst category. Therefore, the segmentation of kidneys, tumors, and cysts will be able to assess the complexity and aggressiveness of kidney mass. Deep learning models can save medical resources, but 3D models still have some disadvantages, such as the high cost of computing resources. This paper proposes a scheme that saves computing resources and achieves the segmentation of kidney mass in two steps. First, we preprocess the kidney volume data using the automatic down-sampling method of 3D images, reducing the volume while preserving the feature information. Second, we finely segment kidneys, tumors, and cysts using the AgDenseU-Net (Attention gate DenseU-Net) 2.5D model. KiTS21 proposed using Hierarchical Evaluation Classes (HECs) to compute a metric for the superset: the HEC of kidney considers kidneys, tumors, and cysts as the foreground to compute segmentation performance; the HEC of kidney mass considers both tumor and cyst as the foreground classes; the HEC of tumor considers tumor as the foreground only. For KiTS21, our model achieved a dice score of 0.971 for the kidney, 0.883 for the mass, and 0.815 for the tumor. In addition, we also tested segmentation results without HECs, and our model achieved a dice score of 0.950 for the kidney, 0.878 for the tumor, and 0.746 for the cyst. The results demonstrate that the method proposed in this paper can be used as a reference for kidney tumor segmentation. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Sun, Peng AU - Sun P AD - School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. FAU - Mo, Zengnan AU - Mo Z AD - Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China. FAU - Hu, Fangrong AU - Hu F AD - School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. FAU - Song, Xin AU - Song X AD - School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. FAU - Mo, Taiping AU - Mo T AD - School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. FAU - Yu, Bonan AU - Yu B AD - School of Architecture and Transportation Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. FAU - Zhang, Yewei AU - Zhang Y AD - Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China. Electronic address: zhangyewei@njmu.edu.cn. FAU - Chen, Zhencheng AU - Chen Z AD - School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China. Electronic address: zhenchchen@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221018 PL - United States TA - Comput Biol Med JT - Computers in biology and medicine JID - 1250250 SB - IM MH - Humans MH - *Kidney Neoplasms/diagnostic imaging MH - *Cysts MH - Kidney/diagnostic imaging MH - Image Processing, Computer-Assisted OTO - NOTNLM OT - 2.5D model OT - AgDenseU-Net OT - Automatic down-sampling of 3D images OT - KiTS21 OT - Kidney tumor segmentation OT - Medical image segmentation COIS- Declaration of competing interest The authors declare no conflict of interest. EDAT- 2023/10/20 06:42 MHDA- 2023/10/23 01:18 CRDT- 2023/10/20 01:07 PHST- 2022/05/14 00:00 [received] PHST- 2022/10/07 00:00 [revised] PHST- 2022/10/15 00:00 [accepted] PHST- 2023/10/23 01:18 [medline] PHST- 2023/10/20 06:42 [pubmed] PHST- 2023/10/20 01:07 [entrez] AID - S0010-4825(22)00931-3 [pii] AID - 10.1016/j.compbiomed.2022.106223 [doi] PST - ppublish SO - Comput Biol Med. 2022 Nov;150:106223. doi: 10.1016/j.compbiomed.2022.106223. Epub 2022 Oct 18.