The meaning of the word artifact in medical terms. What are MRI artifacts? What is an artifact in medicine
(lat.artefactum artificially made)
a phenomenon observed in the study of an object, unusual for this object and distorting the results of the study.
Watch value Artifact in other dictionaries
Artifact- [te], -a; m. [from lat. arte - artificial and faktus - made]. Book.
1. An object made or processed by man (especially as an object of archaeological research). Collection........
Dictionary Kuznetsova
Artifact- - any
human-made system to perform a function or achieve
targets: plane, symphony,
ministry, etc.
Economic Dictionary
Artifact- (microbiol.) - a phenomenon unusual for the observed object, leading to a distortion of the research results. With a microscope, research method A arises due to ........
Microbiology Dictionary
Artifact- (lat. Artefactum artificially made) a phenomenon observed in the study of an object, unusual for this object and distorting the results of the study.
Comprehensive Medical Dictionary
Hospital Artifact in Psychiatry- personality degradation and regression of the patient's behavior in a psychiatric hospital, caused by the environment and not dependent on the disease itself.
Comprehensive Medical Dictionary
Irritation Artifact in Electrophysiology- the deviation of the curve of the recorded process at the time of application of the stimulus, due to the direct physical action of the stimulus on the tissue and the receiving device.
Comprehensive Medical Dictionary
Artifact X-ray- an artifact during an X-ray examination in the form of shadows on an X-ray screen, film or plate, not related to the characteristics of the object under study.
Comprehensive Medical Dictionary
Artifact- (from Lat. Artefactum - artificially made) - .. 1) an object made, made by man ... 2) A process or formation that is unusual for the studied object in the norm and arising ........
Big encyclopedic dictionary
Artifact- (from Lat. Artefactum - artificially made), a process or education, not characteristic of the body in the norm, but caused by the very method of research. A. is usually conditioned by methodical .........
Biological encyclopedic dictionary
Artifact- (English artifact, artefact) .1. In cultural-historical psychology, archeology is an artificial means of activity: tools and signs (including a word, a symbol, etc.). Syn. (but not always) a pick .........
Psychological encyclopedia
Artifact Clinic- Word formation. Comes from lat. artefactum - artificially made and Greek. kline - bed, bunk. Category. Clinical disorders. Specificity. Occurs in patients ........
Psychological encyclopedia
Artifact Cultural- An artifact that has a culturally determined form and function.
Psychological encyclopedia
Artifact Statistical- Incorrect or misleading inference derived from bias by the experimenter in collecting or analyzing data or interpreting those results.
Psychological encyclopedia
Cultural artifact- See artifact, cultural.
Psychological encyclopedia
Statistical Artifact- See artifact, statistical.
Psychological encyclopedia
Artifact (artifact, Artefact)- (in microscopy) a structure observed in tissues under a microscope, while in living tissue it is absent. Artifacts due to insufficient fixation or ........
Medical Dictionary
Artifact- (from lat.artefactum - artificially made) - eng. artefact / artifact; German Artefact. 1. Man-made object. 2. A tool of labor processed by prehistoric man.
Sociological Dictionary
Artifact Research- - eng. artifact, research; German Forschungsartefakt. A process, phenomenon, formation, not characteristic of the object under study as such and arising in the course of its research as a result of ........
Sociological Dictionary
Artifact Statistical- - eng. artifact, statistical; German Artefakt, statistischer. The kind of research artifact when collecting and processing statistic. data.
Sociological Dictionary
Artifact (from Lat. - Artificially Made)- - in the usual sense, any artificially created object; in culturology, this concept came from archeology, where it was used to distinguish between natures. and arts. objects .........
Philosophical Dictionary
Artifact Cultural- An interpretive embodiment of K.-L. cultural forms in conc. material product, behavioral act, social structure, inform. message or value judgment .........
Philosophical Dictionary
A large number of color artifacts may have a negative impact on the interpretation of the results of the CDE or distort it. Some of them are inevitable and in fact can be used to improve the accuracy and sensitivity of diagnostics.
Interference: One of the reasons may be that the color gain value is too high. Interference can be a significant problem, but in some cases it is intentional and is used to detect slow blood flow.
Movement artifacts: Artifacts of movement (color flashes) also make it difficult to study. Their possible causes may be transmitted pulsations of the heart (for example, when examining vascularized neoplasms in the left lobe of the liver) and pulsations of the aorta.
Overlay: This artifact presents a problem when, for diagnostic purposes, the color scale of the device is set to a certain velocity range (PRF), which does not correspond to the blood flow velocity in all the examined vessels. This results in unwanted color inversion zones.
Confetti artifact: Appears in the form of numerous small color pixels, is an important sign of post-stenotic turbulent flow.
Shimmer artifact: has great diagnostic value. It occurs when the pixels of the confetti artifact or color stripes (red and blue pixels) are created by structures with very strong sound-reflecting properties (stone, cholesterol polyp), located in the acoustic shadow. Flickering occurs due to vibration of a reflective surface caused by sound waves incident on it. This artifact can be useful in the diagnosis of kidney stones and other formations.
Definition: in ultrasound diagnostics, artifacts are acoustic images that are not related to anatomical structures. Their occurrence is due to the fact that not all physical phenomena are taken into account in the visualization process.
Meaning: When interpreting ultrasound images, artifacts can have different meanings. Some of them, such as the artifact of the thickness of the ultrasound beam, can interfere with the interpretation of the ultrasound picture, while others, in particular the acoustic shadow, have diagnostic value.
Side lobe artifact
Incorrect object display on the screen due to echoes produced by the side lobes accompanying the ultrasound beam.
Side lobe artifact looks like a curved line in an anechoic structure.
Meaning: These artifacts can be mistaken for echoes from internal structures cystic organs (septa, sediment).
Differentiation with the real object: Changing the angle of inclination of the transducer or the scanning plane easily leads to the disappearance of the artifact.
ARTIFACT
(lat. artefactum artificially made) a phenomenon observed in the study of an object, unusual for this object and distorting the results of the study.
Medical terms. 2012
See also the interpretations, synonyms, meanings of the word and what ARTIFACT is in Russian in dictionaries, encyclopedias and reference books:
- ARTIFACT
(from Lat. are - craft, art and factum - made) In modern aesthetics and art history, this term is used for a generalized ... - ARTIFACT in the Dictionary of Fine Art Terms:
- (from the Latin artefactum - artificially made) a term borrowed from archeology was originally used in a literal etymological sense in order to emphasize ... - ARTIFACT in the Popular Medical Encyclopedia:
- a phenomenon that is not characteristic of the object of research and distorts the results ... - ARTIFACT in the Pedagogical Encyclopedic Dictionary:
(Latin arte - artificially and factus - made), an experimental result arising from deviations in the conduct of an experiment or due to defects in ... - ARTIFACT in the Big Encyclopedic Dictionary:
(from Lat. artefactum - artificially made). 1) an object made, made by a person ... 2) A process or formation that is not characteristic of the studied object in the norm ... - ARTIFACT in the Great Soviet Encyclopedia, TSB:
(from Lat. Artefactum - artificially made) (biol.), a process or formation, unusual for the body in the norm and caused by the very method of its research. ... - ARTIFACT
[from the Latin arte artificially + factus made] arising in some cases in the study of the organism of education or processes unusual in the norm ... - ARTIFACT in the Encyclopedic Dictionary:
a, m. 1. biol. Formation or process that sometimes arises in the study of a biological object as a result of the impact on it of the very conditions of the study. ... - ARTIFACT in the Big Russian Encyclopedic Dictionary:
ARTEFACT (from Latin artefactum - artificially made), an object made, made by man. A process or education that is not characteristic of the object under study is normal ... - ARTIFACT in the Complete Accentuated Paradigm by Zaliznyak:
artifact "qt, artifact" qty, artifact "qta, artifact" qty, artif "qtu, artifact" qtam, artifact "qt, artifier" qty, artifact "qtom, artifact" qtami, artifact "qte, ... - ARTIFACT in the New Dictionary of Foreign Words:
(Latin arte artificially + factus made) b iol. formations or processes that sometimes arise in the study of a biological object as a result of exposure ... - ARTIFACT in the Dictionary of Foreign Expressions:
[lat. arte artificial + factus made] b iol. formations or processes that sometimes arise in the study of a biological object as a result of exposure to ... - ARTIFACT in the dictionary of Synonyms of the Russian language.
- ARTIFACT in the Dictionary of the Russian language Lopatin:
artif`act, ... - ARTIFACT in the Complete Spelling Dictionary of the Russian Language:
artifact, ... - ARTIFACT in the Spelling Dictionary:
artif`act, ... - ARTIFACT in the Modern Explanatory Dictionary, TSB:
(from Lat. artefactum - artificially made), .. 1) an object made, made by man ... 2) A process or formation that is not characteristic of the studied object in the norm and ... - SPACE ARTIFACT
an object that has fallen to earth from space and has signs of artificial origin. Among such mysteries is the Canadian meteorite weighing 150 kilograms, ... - ARTEFACT (LAT. ARTEFACTUM - "ARTIFICIAL") in the Handbook of Miracles, Unusual Phenomena, UFOs and more:
a process, action, formation or phenomenon that is not characteristic of any given object in a normal ordinary environment and manifests itself only in the process of study. ... - ARTIFACT (FILM, 2009) in the Wiki Quote:
Data: 2009-08-28 Time: 18:30:05 Navigation Topic = Artifact Wikipedia = Artifact (film, 2009) "Artifact" is the director's debut feature film, ... - ARTIFACT X-RAY in Medical terms:
an artifact during an X-ray examination in the form of shadows on an X-ray screen, film or plate, not related to the characteristics of the investigated ... - WORLD OF WARCRAFT in the Handbook of Secrets of games, programs, equipment, movies, Easter eggs:
1. Echo of WarCraft III Location: Dun Morgoh - Khranos In this location you can find a team of Dwarven Mortar. This … - TRANSFORMERS (FILM) in the Quote Wiki.
- LABYRINTH ENTRANCE (FILM) in the Quote Wiki:
Data: 2009-07-31 Time: 06:54:23 * Forty more drops can be squeezed out of an empty bottle! * This cannot be. This - … - STARSHIP UNLIMITED 2: DIVIDED GALAXIES
The following codes must be entered while holding down the Home key. Each letter entered while holding Home is considered a part of the code by the game. ... - CLOUD KINGDOMS in the List of Easter eggs and codes for games:
Find some dragon and use MON ZO GOR SAR spell. Press Esc immediately to place the game ... - ARTIFACT SPACE in the Lexicon of nonclassics, artistic and aesthetic culture of the XX century, Bychkov:
The space-time continuum, in which the being (or event) of works of modern art practices, art projects is realized. His understanding is based on the traditional aesthetic understanding of "space ... - MINIMALISM in the Lexicon of nonclassics, artistic and aesthetic culture of the XX century, Bychkov:
(minimal art - English: minimal art) An artistic movement, proceeding from the minimal transformation of materials used in the process of creativity, simplicity and uniformity ... - CONCEPTUALISM in the Lexicon of nonclassics, artistic and aesthetic culture of the XX century, Bychkov:
, conceptual art (Concept Art - English concept - concept, idea, concept) The last in time of occurrence (60 - 80 ... - VIRTUAL REALITY in the Lexicon of nonclassics, artistic and aesthetic culture of the XX century, Bychkov:
(virtual reality - eng.) in art An artificial environment created by computer means, into which one can penetrate, changing it from the inside, observing transformations ... - BASHLAR in the Lexicon of nonclassics, artistic and aesthetic culture of the XX century, Bychkov:
(Bachelard) Gaston (1884-1962) French philosopher, esthetician, critic, founder of neorationalism. He is one of those who literally made themselves ...
What are "artifacts" in MRI scans?
Artifacts (from Latin artefactum) are errors made by a person in the process of research. Artifacts significantly degrade image quality. There is a large group of physiological (in other words, related to human behavior) artifacts: motor, respiratory, artifacts from swallowing, blinking, random uncontrollable movements (tremor, hypertonicity). All artifacts associated with the human factor are easily overcome if the person is completely relaxed during the study, breathes evenly and freely, without deep swallowing movements and frequent blinking. However, in medical practice, there are frequent cases of the use of light anesthesia.
At what age can an MRI be done for children?
Magnetic resonance imaging has no age restrictions, so it can be performed on children from birth. But due to the fact that immobility must be observed during the MRI procedure, the examination of young children is carried out under conditions of anesthesia (superficial anesthesia). In our center, research is not carried out under anesthesia, so we examine children exclusively from the age of seven.
What are the contraindications to MRI?
All contraindications for MRI can be divided into absolute and relative.
Absolute contraindications for MRI are the following patient characteristics: the presence of a pacemaker (pacemaker) and other implantable electronic devices, the presence of ferrimagnetic (iron-containing) and electric stirrup prostheses (after reconstructive surgery on the middle ear), hemostatic clips after operations on the vessels of the head brain, abdominal cavity or lungs, metal fragments in the orbit area, large fragments, shot or bullets near the neurovascular bundles and vital organs, as well as pregnancy up to three months.
Relative contraindications include: claustrophobia (fear of a confined space), the presence of massive non-ferrimagnetic metal structures and prostheses in the patient's body, the presence of an IUD (intrauterine device). In addition, all patients with magnetically compatible (non-ferrimagnetic) metal structures can be examined only one month after the surgery.
Do I have to have a referral from a doctor in order to have an MRI?
A doctor's referral is not a requirement for visiting an MRI center. Your concern for your health, your consent to the examination, as well as the absence of contraindications for MRI are important to us.
I get headaches often. MRI of which area should be done?
Anyone knows a headache, but if it recurs suspiciously often, of course, this cannot be ignored. We recommend that a patient with severe headaches undergo an MRI scan of the brain and its vessels. In some cases, this may not be enough, because the cause of headaches is not always associated with the pathology of the brain. Headaches can be a consequence of cervical osteochondrosis, therefore our specialists additionally advise to undergo an MRI of the cervical spine and vessels of the neck.
How long does an MRI scan take?
The average duration of one study in our center is from 10 to 20 minutes, however, it all depends on the changes detected: sometimes, to clarify the disease, the radiologist can expand the study protocol and resort to the use of contrast enhancement. In such cases, the research time is increased.
ARTEFACT (from Lat. Artefactum - artificially made) - .. 1) an object made, made by man ... 2) A process or formation that is not characteristic of the studied object in the norm and usually arises in the course of its research. Ex. Big encyclopedic dictionary
