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Methods of investigating the effectiveness of anticancer cytotoxic drugs and biologic inhibitors. These include in vitro cell-kill models and cytosta…

Endoscopic examination, therapy or surgery of the luminal surface of the duodenum.

Methods to identify and characterize cancer in the early stages of disease and predict tumor behavior.

Methods to determine in patients the nature of a disease or disorder at its early stage of progression. Generally, early diagnosis improves PROGNOSIS…

Earlier than planned termination of clinical trials.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.

Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the…

Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.

Echocardiography applying the Doppler effect, with velocity detection combined with range discrimination. Short bursts of ultrasound are transmitted …

Dynamic three-dimensional echocardiography using the added dimension of time to impart the cinematic perception of motion. (Mayo Clin Proc 1993;68:22…

A method of recording heart motion and internal structures by combining ultrasonic imaging with exercise testing (EXERCISE TEST) or pharmacologic str…

Echocardiography amplified by the addition of depth to the conventional two-dimensional ECHOCARDIOGRAPHY visualizing only the length and width of the…

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.

Use of reflected ultrasound in the diagnosis of intracranial pathologic processes.

Use of electric potential or currents to elicit biological responses.

Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar fun…

Method in which prolonged electrocardiographic recordings are made on a portable tape recorder (Holter-type system) or solid-state device (real-time …

Recording of brain electrical activities in which the electrodes are placed directly on the CEREBRAL CORTEX.

Diagnosis of disease states by recording the spontaneous electrical activity of tissues or organs or by the response to stimulation of electrically e…

Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the …

Adjustment of BRAIN WAVES from two or more neuronal groups within or across a brain structure (e.g., cortical and limbic brain structures) to become …

Radiographic technique combining a photoelectric recording system with fluoroscopy. It is used especially with electrocardiography to study heart mot…

Recording of the changes in electric potential of muscle by means of surface or needle electrodes.

Recording of nystagmus based on changes in the electrical field surrounding the eye produced by the difference in potential between the cornea and th…

Recording of the average amplitude of the resting potential arising between the cornea and the retina in light and dark adaptation as the eyes turn a…

Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.

Recording of electric potentials in the retina after stimulation by light.

Induction of a stress reaction in experimental subjects by means of an electrical shock; applies to either convulsive or non-convulsive states.

Empirical proton pump inhibitor trial used as a ClinicalGraph target concept for investigation / investigation.

A method for removing lesions from gastrointestinal MUCOUS MEMBRANES. The mucosal tissue with the lesion is elevated by injecting a solution into th…