91亚色 posted strong results in global rankings in this year鈥檚 Times High Education (THE) World University Rankings by Subject, competing against almost 1,500 universities across 11 subjects worldwide. 91亚色鈥檚 Osgoode Hall Law School鈥檚 held firmly with a 65th in the world spot, while rankings for programs in Medical & Health and Engineering & Technology subjects, a sign of the University鈥檚 growing momentum in these areas, also increased.

91亚色鈥檚 strength in Medical & Health subjects is bolstered with a new School of Medicine set to open in 2028. The medical school is being designed to strengthen community health through unique curriculum and physician training and will help meet Ontario鈥檚 urgent healthcare needs.

"Our upward trajectory in global standings reflects 91亚色鈥檚 growing expertise in health and medicine. By strengthening our research environment and innovative academic programming, we are building a robust foundation for our new School of Medicine within 91亚色鈥檚 Faculty of Health, where our researchers and learners are equipped to advance health equity for the diverse communities we serve," says School of Medicine Dean David Peters, Faculty of Health.

In addition, Psychology was ranked in the top 150 worldwide and in the top 10 nationally, along with Business & Economics and Law. Psychology and Engineering & Technology rose across all five pillars 鈥� teaching, research environment, research quality, industry and international outlook.

鈥淭his ranking reflects the strength of Osgoode鈥檚 academic community and the impact of the teaching, research, and scholarship taking place at the law school,鈥� says Dean of Osgoode Hall Law School Trevor Farrow. 鈥淚t鈥檚 encouraging to see that work recognized globally.鈥�

The subject ranking results follow on a year of positive results, including the , where the University scored 15 subject areas in the top 10 and is ranked sixth in Canada and second in Ontario for the Arts and Humanities, and in the top 100 worldwide for English language and literature. The University also went up three spots from seventh to fourth in the country for Geography, while 91亚色 ranked eighth in Canada and fourth in Ontario for Social Sciences and Management. The University also moved up 29 spots globally in the 2026 QS World University Rankings.

In the Times Higher Education (THE) Impact Rankings results, 91亚色 earned a top 40 spot demonstrating continued leadership in the United Nations Sustainable Development Goals.  And in the , 91亚色 placed in the top five as one of the best comprehensive universities in Canada, a spot it鈥檚 held for several consecutive years. It also ranked fourth for reputation, third for student scholarships and bursaries, and fourth for social sciences and humanities grants.

For more than a decade, 91亚色 has been named as one of Canada鈥檚 Greenest Employers and for the second consecutive year it also made the list for Canada鈥檚 Best Diversity Employers.

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Professor says this could lead to better treatments for late-stage cancer patients

TORONTO, Dec. 8 2025 鈥� While targeted radiation can be an effective treatment for brain tumours, subsequent potential necrosis of the treated areas can be hard to distinguish from the tumours on a standard MRI. led by a 91亚色 professor in the Lassonde School of Engineering found that a novel AI-based method is better able to distinguish between the two types of lesions on advanced MRI than the human eye alone, a discovery that could help clinicians more accurately identify and treat the issues.

鈥淭he study shows, for the first time, that novel attention-guided AI methods coupled with advanced MRI can differentiate, with high accuracy, between tumour progression and radiation necrosis in patients with brain metastasis treated with stereotactic radiosurgery,鈥� says 91亚色 Research Chair Ali Sadeghi-Naini, senior author of the paper and associate professor of biomedical engineering and computer science. 鈥淭imely differentiation between tumour progression and radiation necrosis after radiotherapy in brain tumours is a crucial challenge in cancer centers, since these two conditions require quite different treatment approaches.鈥�

The study, published in the International Journal of Radiation Oncology, Biology, Physics, was conducted in close collaboration with imaging scientists, neuro-oncologists and neuro-radiologists at Sunnybrook Health Sciences Centre using data acquired from more than 90 cancer patients whose original cancer had metastasized to the brain.

Sadeghi-Naini says the incidence of brain metastasis  is rising as treatments improve and survival rates increase. Stereotactic radiosurgery (SRS), where a concentrated doses of radiation are applied to the cancer lesions only, is effective at controlling the tumours.  In up to 30 per cent of cases, SRS is not able to control the tumour and it continues to grow. Where it is successful, healthy brain tissue immediately surrounding the tumour may also die off, called brain radiation necrosis, and it can come with significant side effects.

Sadeghi-Naini and his colleagues introduced a 3D deep learning AI model with two advanced attention mechanisms to differentiate between tumour progression and radiation necrosis using a specialized MRI technique, called chemical exchange saturation transfer (CEST), and found that the AI was able to differentiate between the two conditions with over 85 per accuracy. Sadeghi-Naini says with a standard MRI the two conditions are accurately diagnosed about 60 per cent of the time, and with more advanced MRI techniques alone, the rate increases to about 70 per cent.

鈥淒ifferentiating tumour progression and  radiation necrosis is very important 鈥� one needs more anti-cancer therapies and may need to be aggressively treated with more radiation, sometimes surgery.  The other may require observation, anti-inflammatory drugs, so getting this right is crucial for patients.鈥�

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91亚色 is a modern, multi-campus, urban university located in Toronto, Ontario. Backed by a diverse group of students, faculty, staff, alumni and partners, we bring a uniquely global perspective to help solve societal challenges, drive positive change, and prepare our students for success. 91亚色's fully bilingual Glendon Campus is home to Southern Ontario's Centre of Excellence for French Language and Bilingual Postsecondary Education. 91亚色鈥檚 campuses in Costa Rica and India offer students exceptional transnational learning opportunities and innovative programs. Together, we can make things right for our communities, our planet, and our future.

Media Contact:

Emina Gamulin, 91亚色 Media Relations, 437-217-6362, egamulin@yorku.ca

The post Novel AI technique able to distinguish between progressive brain tumours and radiation necrosis, 91亚色 U study finds appeared first on News@91亚色.