| cystoscope | <instrument> An instrument that allows the doctor to see inside the bladder and remove tissue samples or small tumours. (12 Dec 1998) |
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| receiver operating characteristic | A plot of the sensitivity of a diagnostic test as a function of non-specificity (one minus the specificity). The ROC curve indicates the intrinsic properties of a test's diagnostic performance and can be used to compare the relative merits of competing procedures. (05 Mar 2000) |
| receiver operating characteristic curve | A plot of true positive versus false positive results, usually in a trial of a diagnostic test. A graphical means of assessing the ability of a screening test to discriminate between healthy and diseased persons. Synonym: ROC curve. (05 Mar 2000) |
| standard operating procedure | <microscopy> A written set of instructions detailing the normal procedures for operating a piece of equipment. WWW: Available online (05 Aug 1998) |
| operating microscope | <instrument> A binocular microscope used to obtain good visualization of fine structures in the operating field; in the standing type of microscope, a motorised zoom lens system operated by hand or foot controls provides an adjustable working distance; in headborne models, interchangeable oculars provide the magnification needed. Synonym: operating microscope. (05 Mar 2000) |
| operating room 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 operating room services and facilities. (12 Dec 1998) |
| operating room nursing | The functions of the professional nurse in the operating room. (12 Dec 1998) |
| operating rooms | Facilities equipped for performing surgery. (12 Dec 1998) |
| operating room technicians | Specially trained personnel to assist in routine technical procedures in the operating room. (12 Dec 1998) |
| operating table | A table on which the patient lies during a surgical operation. (05 Mar 2000) |