| cardiovascular radiology | The clinical subspecialty of radiology concerned with diagnosis and treatment of diseases of the vascular system. (05 Mar 2000) |
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| paediatric radiology | The clinical subspecialty concerned with the radiological manifestations of diseases of children. (05 Mar 2000) |
| radiology | <study> The study of X-rays in the diagnosis of a disease. (06 Oct 1997) |
| radiology department, hospital | Hospital department which is responsible for the administration and provision of X-ray diagnostic and therapeutic services. (12 Dec 1998) |
| radiology information systems | Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative activities associated with the provision and utilization of radiology services and facilities. (12 Dec 1998) |
| radiology, interventional | Subspeciality of radiology that combines organ system radiography, catheter techniques and sectional imaging. (12 Dec 1998) |
| chest radiology | The clinical subspecialty concerned with the diagnostic radiology of diseases of the thorax, especially the heart or lungs. (05 Mar 2000) |
| interventional radiology | The clinical subspecialty that uses fluoroscopy, CT, and ultrasound to guide percutaneous procedures such as performing biopsies, draining fluids, inserting catheters, or dilating or stenting narrowed ducts or vessels. (05 Mar 2000) |
| Addison's clinical planes | A series of plane's used as landmarks in thoracoabdominal topography; the trunk is divided vertically by a median plane from the upper border of the manubrium of the sternum to the pubic symphysis, by a lateral plane drawn vertically on either side through a point half way between the anterior superior iliac spine and the median plane at the interspinal plane, and by an interspinal plane passing vertically through the anterior superior iliac spine on either side; transversely the trunk is divided by a transthoracic plane passing across the thorax 3.2 cm above the lower border of the body of the sternum, by a transpyloric plane midway between the jugular notch of the sternum and the pubic symphysis, corresponding to the disc between the first and second lumbar vertebrae, and by an intertubercular plane passing through the iliac tubercles and cutting usually the fifth lumbar vertebra; the plane's formed on these lines, and also on transverse plane's cutting the upper edge of the manubrium and the upper edge of the pubic symphysis, constitute the clinical plane's of Addison. (05 Mar 2000) |
| pathology, clinical | A subspecialty of pathology which deals with the laboratory analysis of specimens of human blood and other fluids. (12 Dec 1998) |
| chemistry, clinical | The specialty of analytical chemistry applied to assays of physiologically important substances found in blood, urine, tissues, and other biological fluids for the purpose of aiding the physician in making a diagnosis or following therapy. (12 Dec 1998) |
| pharmacology, clinical | The branch of pharmacology that deals directly with the effectiveness and safety of drugs in humans. (12 Dec 1998) |
| phase I clinical trial | <pharmacology> The earliest stage clinical trial for studying an experimental drug in humans. Phase I trials are generally comparatively small and are used to determine toxicity and maximum dose. They provide an initial evaluation of a drug's safety and pharmacokinetics-how the drug is absorbed, what tissues it reaches and how long it takes to leave the body. Such studies also usually test various doses of the drug (dose-ranging) to obtain an indication of the appropriate dose to use in later studies. The patients in these trials usually have advanced disease and have already received best available chemotherapy, therefore, seeing a repose is significant partially because this means there is a lack of cross-resistance between two anti-cancer drugs. (31 Dec 1997) |
| phase II clinical trial | <pharmacology> Usually focus on the activity of the new product as a single agent in a noncomparative, open study. (31 Dec 1997) |
| phase III clinical trial | <pharmacology> An advanced stage clinical trial that should conclusively show how well a drug works as compared to other treatments. Phase III trials are large, frequently multi-institution tests. They generally compare the relative value of the new drug compared with the current standard treatment and measure whether a new drug extends survival or otherwise improves the health of patients on treatment (clinical improvement) rather than just provide surrogate marker data. These studies generally last longer and are larger than phase II trials. (31 Dec 1997) |