Publications by authors named "Shin Matsushima"
Article Synopsis
- Bilateral pedicle fractures in the lumbar spine usually occur due to trauma or strenuous activities, but can also happen in patients with a history of osteoporosis and long-term bisphosphonate use.
- An 82-year-old woman with worsening back pain was found to have bilateral pedicle fractures after 9 years of bisphosphonate treatment; she underwent successful spinal fusion surgery.
- Histological evaluation showed low bone turnover, suggesting that prolonged bisphosphonate therapy may increase the risk of these atypical fractures in osteoporosis patients.
Non-negative tensor factorization (NTF) is a widely used multi-way analysis approach that factorizes a high-order non-negative data tensor into several non-negative factor matrices. In NTF, the non-negative rank has to be predetermined to specify the model and it greatly influences the factorized matrices. However, its value is conventionally determined by specialists' insights or trial and error.
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