Nodes

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.

narrowing of superior mediastinum and globular shape of heart in neonates with Transposition of the Great Arteries

breast-thin calcification of a spherical surface, usually benign, most commonly seen in fat necrosis and cysts

lung-peripheral calcification of thoracic lymph nodes, most often seen in

Non-invasive imaging methods based on the mechanical response of an object to a vibrational or impulsive force. It is used for determining the viscoe…

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 …

The utilization of an electrical current to measure, analyze, or alter chemicals or chemical reactions in solution, cells, or tissues.

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…

Destruction by passage of a galvanic electric current, as in disintegration of a chemical compound in solution.

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

A tomographic technique for obtaining 3-dimensional images with transmission electron microscopy.

Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a …

A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spect…

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…