Nodes

Endoscopic examination, therapy or surgery of the RECTUM; ANAL CANAL; and ANUS.

Provocative coronary spasm testing used as a ClinicalGraph target concept for investigation / investigation.

The reaction of potassium ferrocyanide with ferric iron to yield a dark blue precipitate at the sites of the ferric iron. Used to determine ferric ir…

The science pertaining to the interrelationship of psychologic phenomena and the individual's response to the physical properties of sound.

The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimul…

The exchange of OXYGEN and CARBON DIOXIDE between alveolar air and pulmonary capillary blood that occurs across the BLOOD-AIR BARRIER.

The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.

Evaluation of the contour of the PULSE waves which vary in different parts of the circulation and depend on physiological as well as pathophysiologic…

Contrast imaging generated from the measurements of phase shift changes of light waves as they pass through transparent objects of varying thickness …

Quantitative urine protein measurement used as a ClinicalGraph target concept for investigation / investigation.

bilateral jugular vein pressure during lumbar puncture causes sudden rise in CSF pressure

The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they hav…

Use of radiolabeled antibodies for diagnostic imaging of neoplasms. Antitumor antibodies are labeled with diverse radionuclides including iodine-131,…

Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over tim…

Graphic tracing over a time period of radioactivity measured externally over the kidneys following intravenous injection of a radionuclide which is t…

The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.

Extraction of a large number of features from patient images using data characterization algorithms to uncover tumoral patterns and characteristics t…

Imaging of a ventricle of the heart after the injection of a radioactive contrast medium. The technique is less invasive than cardiac catheterization…

Tests for measuring loudness recruitment.

Rectal involvement used as a ClinicalGraph target concept for radiology / imaging_finding.

Reduced coronary flow reserve used as a ClinicalGraph target concept for investigation / imaging_finding.

Observation and acquisition of physical data from a distance by viewing and making measurements from a distance or receiving transmitted data from ob…

Renal ultrasonography used as a ClinicalGraph target concept for investigation / investigation.

Repeated standardized blood pressure measurement used as a ClinicalGraph target concept for investigation / investigation.

Repetitive nerve stimulation used as a ClinicalGraph target concept for investigation / investigation.

Methods of preparing tissue specimens for visualization using an electron microscope, usually a scanning electron microscope. The methods involve the…

Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and…

Noises, normal and abnormal, heard on auscultation over any part of the RESPIRATORY TRACT.

An objective determination of the refractive state of the eye (NEARSIGHTEDNESS; FARSIGHTEDNESS; ASTIGMATISM). By using a RETINOSCOPE, the amount of c…

Technique for measuring air pressure and the rate of airflow in the nasal cavity during respiration.