| SCS | SCS - Spinal cord stimulation - A spinal cord stimulator is a device used to exert pulsed electrical signals to the spinal cord to control chronic pain. Further applications are in motor disorders. | |
| SIRT | SIRT - Selective Internal Radiation Therapy - SIRT is a form of radiation therapy used in interventional radiology to treat cancer. It is generally for selected patients with unresectable cancers, those that cannot be treated surgically, especially hepatic cell carcinoma or metastasis to the liver. | |
| SMART | SMART - Scalable Medical Alert Response Technology - SMART is a system for patient tracking and monitoring that begins at the emergency site and continues through transport, triage, stabilization, and transfer between external sites and health care facilities as well as within a health care facility. The system is based on a scalable location-aware monitoring architecture, with remote transmission from medical sensors and display of information on personal digital assistants, detection logic for recognizing events requiring action, and logistic support for optimal response. | |
| SMBG | SMBG - Self-monitoring of blood glucose - The goal of SMBG is to collect detailed information about blood glucose levels at many time points to enable maintenance of a more constant glucose level by more precise regimens. It can be used to aid in the adjustment of a therapeutic regimen in response to blood glucose values and to help individuals adjust their dietary intake, physical activity, and insulin doses to improve glycemic control on a day-to-day basis. | |
| TAVI | TAVI - Transcatheter aortic valve implantation (TAVI) devices and delivery systems - Percutaneous aortic valve replacement (PAVR), often transcatheter aortic valve implantation (TAVI) or transcatheter aortic valve replacement (TAVR), is the replacement of the aortic valve of the heart through the blood vessels (as opposed to valve replacement by open heart surgery). | |
| TNM | TNM - Classification of Malignant Tumours - The classification of cancer by anatomic disease extent, i.e. stage, is the major determinant of appropriate treatment and prognosis. Stage is an increasingly important component of cancer surveillance and cancer control and an endpoint for the evaluation of the population-based screening and early detection efforts. | |
| TN | TP | TN | TP - True-negative | True-positive - True positive = correctly identified; False positive = incorrectly identified; True negative = correctly rejected ; False negative = incorrectly rejected - see also sensitivity and specificity (weblink and video) | |
| TRD | TRD - Tongue-retaining devices - The tongue-retaining device is a customized monobloc oral appliance used in the treatment of obstructive sleep apnea syndrome (OSAS). | |
| VAD | VADs | VAD | VADs - Ventricular assist devices - A ventricular assist device (VAD) is an electromechanical circulatory device that is used to partially or completely replace the function of a failing heart. The function of VADs differs from that of artificial cardiac pacemakers. | |
| VNS | VNS - Vagus nerve stimulation - Vagus nerve stimulation (VNS) is an adjunctive treatment for certain types of intractable epilepsy and treatment-resistant depression. | |
| WOMAC | WOMAC - Western Ontario and McMaster Universities Osteoarthritis Index - The Western Ontario and McMaster Universities Arthritis Index (WOMAC) is a widely used, proprietary set of standardized questionnaires used by health professionals to evaluate the condition of patients with osteoarthritis of the knee and hip, including pain, stiffness, and physical functioning of the joints. | |
| X-ray | x-ray | X-ray | x-ray - X-radiation; Electromagnetic radiation - X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after Wilhelm Röntgen. | |
| YAG-laser | YAG-laser - Yttrium aluminium garnet-laser - Yttrium aluminium garnet (YAG, Y<sup>3</sup>Al<sup>5</sup>O<sup>12</sup>) is a synthetic crystalline material of the garnet group. It is also one of three phases of the yttrium-aluminium composite, the other two being yttrium aluminium monoclinic (YAM, Y<sup>4</sup>Al<sup>2</sup>O<sup>9</sup>) and yttrium aluminium perovskite (YAP, YAlO<sup>3</sup>). YAG is commonly used as a host material in various solid-state lasers. | |