Recognizing and Minimizing Artifacts at CT, MRI, US, and Molecular                     Imaging

Triche, Benjamin L; Nelson, John T.; McGill, Noah S.; Porter, Kristin K.; Sanyal, Rupan; Tessler, Franklin N.; McConathy, Jonathan; Gauntt, David M.; Yester, Michael V.; Singh, Satinder P.

doi:10.1148/rg.2019180022

Cited by 30 publications

(13 citation statements)

References 6 publications

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“…Chemical Shift Artifact: The different frequency of resonance between fat and water generates an artifact presented as bright and dark lines along the interface of water and lipids 1 2 3 4 5 ( Fig. 1 ).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…Its correction relies on adjustments of imaging acquisition parameters, like switching phase-and frequency-encoding directions; increasing receiver bandwidth; and applying fat suppression. [3][4][5][6] Flow Artifact: Both CSF and blood flow artifacts are physiologic phenomena that may interfere with image acquisition during an MRI scan.…”

Section: Artifacts Contributing To Diagnosismentioning

confidence: 99%

“…It is a consequence of hardware/ software failures; physiologic motion, as cerebrospinal fluid (CSF) flow; or ferromagnetic objects within the patient, like neurosurgical clips. 2,4 Comprehending artifacts is challenging: multiple authors 3,[5][6][7] have demonstrated that the physical principles related to their occurrence should be minimally understood to minimize the emergence of artifacts, as misunderstanding an artifact as a disease may have adverse consequences for the patient. 4 Therefore, beyond discerning basic physics interactions that merge into an artifact, the present study illustrates that recognition of an artifact itself is useful to recall true pathologies and often aids in differential diagnosis of CNS diseases.…”

Section: Introductionmentioning

confidence: 99%

“…Comprehending artifacts is challenging: multiple authors 3 5 6 7 have demonstrated that the physical principles related to their occurrence should be minimally understood to minimize the emergence of artifacts, as misunderstanding an artifact as a disease may have adverse consequences for the patient. 4…”

Section: Introductionmentioning

confidence: 99%

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Artifacts in MRI: Villain or Hero? Using Artifacts for Diagnosing Central Nervous System Diseases

Morais

Peruzini

Júnior

2021

Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery

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An artifact is a feature present in an image which is not part of the original structure. It can occur as a consequence of several factors. It may be mistaken for pathologic conditions, leading to adverse consequences for the patients. The aim of the present study is to present a selection of the main artifacts described in brain and spinal magnetic resonance images to improve the ability of the physicians to recognize them and to reduce their interference on the final interpretation of a scan. The authors searched the scientific community for artifacts in magnetic resonance imaging (MRI), which were selected to focus on central nervous system (CNS) findings. With the Picture Archiving and Communication System (PACS) database from the center where this study was conducted, the authors designated brain and spine MRI scans with conspicuous artifacts to compose the present study. The artifacts were then classified as those that contribute to the diagnosis and those that must be distinguished from pathologic lesions. Considering the novel classification proposed by the present study, physicians might be stimulated to reevaluate their opinions regarding artifacts, perhaps considering them helpful to evaluate certain conditions even if they cannot be fully corrected, as shown by this distinct approach to artifacts with specific findings concerning differential diagnosis of CNS conditions.

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