Both spellings are etymologically justifiable, and both are hundreds of years old in English.
diffusion tensor imaging and fiber tractography (archaeology) An object, such as a tool, weapon or ornament, of archaeological or historical interest, especially such an object found at an archaeological excavation.MRI pulse sequences ( basics | abbreviations | parameters).iodinated contrast-induced thyrotoxicosis.iodinated contrast media adverse reactions.clinical applications of dual-energy CT.as low as reasonably achievable (ALARA).Remember that artifacts are not all bad, and that occasionally they are intentionally exploited, e.g. Hardware issues may cause central point and RF overflow artifacts. Characteristics of pulse sequences may cause black boundary, Moiré, and phase-encoding artifacts. Finite sampling, k-space encoding, and Fourier transformation may cause aliasing and Gibbs artifact.
#ARTEFACT VS ARTIFACT MEANING HOW TO#
presence of anatomy outside the image fieldĬlassification of the artifact type may give one an idea about how to try to fix it.Īrtifacts are caused by a variety of factors that may be patient-related such as voluntary and physiologic motion, metallic implants or foreign bodies.fast spin echo, gradient, volumetric acquisition Some objects reflect family history, status, gender, and/or ethnic identity. One focus is the meaning of the objects: how we use them, how we treat them, what they say about us. A term used by archaeologists and other anthropologists. When encountering an unfamiliar artifact, it is useful to systematically examine general features of the artifact to try and understand its general class. Material culture refers to the corporeal, tangible objects created, used, kept, and left behind by people. Some artifacts affect the quality of the MRI exam while others do not affect the diagnostic quality but may be confused with pathology. MRI artifacts are numerous and give an insight into the physics behind each sequence.
0 kommentar(er)
