There are multiple definitions:

1. thyroid-stimulating immunoglobulin(English)

   • an antibody associated with Graves' disease. The TSI test is primarily used to diagnose this autoimmune condition. The antibodies bind to and stimulate the thyroid gland, causing it to produce excess hormones (hyperthyroidism) without the body's normal regulatory feedback
   • TSH
   • Thyroid and parathyroid, Autoimmunity, Ophthalmology, Hormone
   • https://doi.org…do.2024.1340415

2. T-wave shape index(English)

   • ECG
   • Cardiology, Electrophysiology

3. thermal strain imaging(English)

   • Medical imaging

4. Test for Severe Impairment(English)

   • a 24-item clinical tool designed to assess cognitive function in patients with advanced dementia (e.g., Alzheimer's disease). It eliminates the "floor effect" of traditional tests (like the MMSE) by evaluating preserved functions like memory and basic motor skills
   • CAS-ID, DLSQ, DSMSE
   • Disability, Memory
   • https://doi.org…88.2002.00437.x