PMID- 38397962 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240227 IS - 2227-9059 (Print) IS - 2227-9059 (Electronic) IS - 2227-9059 (Linking) VI - 12 IP - 2 DP - 2024 Feb 3 TI - Prediction of Non-Muscle Invasive Papillary Urothelial Carcinoma Relapse from Hematoxylin-Eosin Images Using Deep Multiple Instance Learning in Patients Treated with Bacille Calmette-Guerin Immunotherapy. LID - 10.3390/biomedicines12020360 [doi] LID - 360 AB - The limited reproducibility of the grading of non-muscle invasive papillary urothelial carcinoma (NMIPUC) necessitates the search for more robust image-based predictive factors. In a cohort of 157 NMIPUC patients treated with Bacille Calmette-Guerin (BCG) immunotherapy, we explored the multiple instance learning (MIL)-based classification approach for the prediction of 2-year and 5-year relapse-free survival and the multiple instance survival learning (MISL) framework for survival regression. We used features extracted from image patches sampled from whole slide images of hematoxylin-eosin-stained transurethral resection (TUR) NPMIPUC specimens and tested several patch sampling and feature extraction network variations to optimize the model performance. We selected the model showing the best patient survival stratification for further testing in the context of clinical and pathological variables. MISL with the multiresolution patch sampling technique achieved the best patient risk stratification (concordance index = 0.574, p = 0.010), followed by a 2-year MIL classification. The best-selected model revealed an independent prognostic value in the context of other clinical and pathologic variables (tumor stage, grade, and presence of tumor on the repeated TUR) with statistically significant patient risk stratification. Our findings suggest that MISL-based predictions can improve NMIPUC patient risk stratification, while validation studies are needed to test the generalizability of our models. FAU - Drachneris, Julius AU - Drachneris J AUID- ORCID: 0000-0003-4818-8316 AD - Department of Pathology and Forensic Medicine, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, 03101 Vilnius, Lithuania. AD - National Center of Pathology, Affiliate of Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania. FAU - Morkunas, Mindaugas AU - Morkunas M AUID- ORCID: 0000-0002-1360-6533 AD - Clinic of Gastroenterology, Nephrourology and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 08406 Vilnius, Lithuania. FAU - Fabijonavicius, Mantas AU - Fabijonavicius M AD - Center of Urology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania. FAU - Cekauskas, Albertas AU - Cekauskas A AD - Clinic of Gastroenterology, Nephrourology and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 08406 Vilnius, Lithuania. AD - Center of Urology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania. FAU - Jankevicius, Feliksas AU - Jankevicius F AD - Clinic of Gastroenterology, Nephrourology and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 08406 Vilnius, Lithuania. AD - Center of Urology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania. FAU - Laurinavicius, Arvydas AU - Laurinavicius A AUID- ORCID: 0000-0001-9232-1730 AD - Department of Pathology and Forensic Medicine, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, 03101 Vilnius, Lithuania. AD - National Center of Pathology, Affiliate of Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania. LA - eng GR - S-MIP-21-31/Lietuvos Mokslo Taryba/ PT - Journal Article DEP - 20240203 PL - Switzerland TA - Biomedicines JT - Biomedicines JID - 101691304 PMC - PMC10886666 OTO - NOTNLM OT - bladder cancer OT - cancer prognosis OT - deep learning OT - digital image analysis OT - feature extraction OT - survival prediction COIS- The authors declare no conflicts of interest. EDAT- 2024/02/24 11:45 MHDA- 2024/02/24 11:46 PMCR- 2024/02/03 CRDT- 2024/02/24 01:10 PHST- 2023/12/28 00:00 [received] PHST- 2024/01/29 00:00 [revised] PHST- 2024/02/01 00:00 [accepted] PHST- 2024/02/24 11:46 [medline] PHST- 2024/02/24 11:45 [pubmed] PHST- 2024/02/24 01:10 [entrez] PHST- 2024/02/03 00:00 [pmc-release] AID - biomedicines12020360 [pii] AID - biomedicines-12-00360 [pii] AID - 10.3390/biomedicines12020360 [doi] PST - epublish SO - Biomedicines. 2024 Feb 3;12(2):360. doi: 10.3390/biomedicines12020360.