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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.

Low hemoglobin used as a ClinicalGraph target concept for investigation / lab_finding.

Reduced left ventricular ejection fraction used as a ClinicalGraph target concept for investigation / imaging_finding.

Reduced striatal dopaminergic uptake on functional imaging 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…

Dilatation of renal pelvis and calyces used as a ClinicalGraph target concept for investigation / imaging_finding.

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.

Restricted diffusion in cerebral tissue used as a ClinicalGraph target concept for investigation / imaging_finding.

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

Reversible myocardial perfusion defect used as a ClinicalGraph target concept for investigation / imaging_finding.

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

Diagnostic measurement of the nose and its cavity through acoustic reflections. Used to measure nasal anatomical landmarks, nasal septal deviation, a…

RESTRICTION FRAGMENT LENGTH POLYMORPHISM analysis of rRNA genes that is used for differentiating between species or strains.