Artifacts
Research News and Information

Saturday, November 21, 2009

Dynamic imaging of a model of intracranial saccular aneurysms using ultra-high-resolution flat-panel volumetric computed tomography. Laboratory investigation.

30 Oct 2009 OBJECT: Imaging of intracranial aneurysms using conventional multidetector CT (MDCT) is limited because of nonvisualization of features such as perforating vessels, pulsatile blebs, and neck remnants after clip placement or coil embolization. In ... Read more...

Misalignment of disposable pulse oximeter probes results in false saturation readings that influence anesthetic management.

30 Oct 2009 We report a small case series in which misaligned disposable pulse oximeter sensors gave falsely low saturation readings. In each instance, the sensor performed well during preinduction oxygen administration and the early part of the case, most ... Read more...

Analysing immune cell migration.

14 Oct 2009 The visualization of the dynamic behaviour of and interactions between immune cells using time-lapse video microscopy has an important role in modern immunology. To draw robust conclusions, quantification of such cell migration is required. However, ... Read more...

Latest indexed articles for 'Artifacts'

These are the very latest articles for this heading:

• Dynamic imaging of a model of intracranial saccular aneurysms using ultra-high-resolution flat-panel volumetric computed tomography. Laboratory investigation. 30 Oct 2009
• Misalignment of disposable pulse oximeter probes results in false saturation readings that influence anesthetic management. 30 Oct 2009
• Imaging of foreign bodies. 30 Oct 2009
• Analysing immune cell migration. 14 Oct 2009
• MR labeling information for implants and devices: explanation of terminology. 29 Sep 2009
• Misleading functional magnetic resonance imaging mapping of the cortical hand representation in a 4-year-old boy with an arteriovenous malformation of the central region. 29 Sep 2009
• Pitfalls in abdominal diffusion-weighted imaging: how predictive is restricted water diffusion for malignancy. 29 Sep 2009
• Direct evidence of 1,900 years of indigenous silver production in the Lake Titicaca Basin of Southern Peru. 28 Sep 2009
• Structural artifacts in protein-ligand X-ray structures: implications for the development of docking scoring functions. 22 Sep 2009
• Small field-of-view cardiac SPECT can be implemented on hybrid SPECT/CT platforms where data acquisition and reconstruction are guided by CT. 30 Aug 2009
• A method for accurate group difference detection by constraining the mixing coefficients in an ICA framework. 30 Aug 2009
• Free water elimination and mapping from diffusion MRI. 30 Aug 2009
• A respiratory self-gating technique with 3D-translation compensation for free-breathing whole-heart coronary MRA. 30 Aug 2009
• Diffusion tensor imaging (DTI) of the brain in moving subjects: application to in-utero fetal and ex-utero studies. 30 Aug 2009
• Myocardial T2* mapping free of distortion using susceptibility-weighted fast spin-echo imaging: a feasibility study at 1.5 T and 3.0 T. 30 Aug 2009
• Contamination of single-voxel multiple quantum filters by external water signals arising from intermolecular multiple quantum coherences. 30 Aug 2009
• Simple method to eliminate interference between ventricular assist devices and cardiac rhythm devices. 30 Aug 2009
• Electrocautery interference with intraoperative electrocardiogram mimicking ST-segment depression. 30 Aug 2009
• Apparent Osborne waves. 30 Aug 2009
• Feasibility of cardiac gating free of interference with electro-magnetic fields at 1.5 Tesla, 3.0 Tesla and 7.0 Tesla using an MR-stethoscope. 30 Aug 2009

See a longer list of these articles.

Technical information about 'Artifacts'

Definition: Any visible result of a procedure which is caused by the procedure itself and not by the entity being analyzed. Common examples include histological structures introduced by tissue processing, radiographic images of structures that are not naturally present in living tissue, and products of chemical reactions that occur during analysis.

Descriptor UI: D016477

Alternative terms: Artifacts; Artifact; Artefacts; Artefact;

Tree Number: E05.047;

History Note: 92

Technical Notes: restrict to histol, microsc, radiogr, ECG; EEG & other procedures: not for products of human workmanship in arts & crafts; no qualif; coord IM with specific procedure (IM)