What's the difference between magnetic and pincushion?

Magnetic


Definition:

  • (a.) Alt. of Magnetical
  • (n.) A magnet.
  • (n.) Any metal, as iron, nickel, cobalt, etc., which may receive, by any means, the properties of the loadstone, and which then, when suspended, fixes itself in the direction of a magnetic meridian.

Example Sentences:

  • (1) By presenting the case history of a man who successively developed facial and trigeminal neural dysfunction after Mohs chemosurgery of a PCSCC, this paper documents histologically the occurrence of such neural invasion, and illustrates the utility of gadolinium-enhanced magnetic resonance scanning in patient management.
  • (2) The tumors were identified by magnetic resonance (MR) imaging.
  • (3) Twenty patients with non-small cell bronchogenic carcinoma were prospectively studied for intrathoracic lymphadenopathy using computed tomography (CT) and magnetic resonance imaging (MRI).
  • (4) The role of magnetic resonance imaging is also discussed, as is the pathophysiology, management, and prognosis in the elderly patient.
  • (5) An innovative magnetic resonance imaging technique was applied to the measurement of blood flow in the abdominal aorta.
  • (6) Sequelae of chemo- and radiotherapy were only depicted by magnetic resonance imaging.
  • (7) Magnetic polyethyleneimine (PEI) microcapsules have been developed for trapping electrophilic intermediates in the gastrointestinal (GI) tract.
  • (8) Our data support the hypothesis that evoked and epileptiform magnetic fields result from intradendritic currents oriented perpendicular to the cortical surface.
  • (9) We conclude that exposure for 20 min to a 1.5-T static magnetic field does not alter body and skin temperatures in man.
  • (10) Magnetic resonance imaging of the spinal cord clearly demonstrated the entire lesion.
  • (11) Right ventricular volumes were determined in 12 patients with different levels of right and left ventricular function by magnetic resonance imaging (MRI) using an ECG gated multisection technique in planes perpendicular to the diastolic position of the interventricular septum.
  • (12) In April 1986, magnetic resonance imaging (MRI) of the thorax and shoulder girdle was presented to the 99th Annual Meeting of the American Association of Anatomists.
  • (13) In addition, a 31P nuclear magnetic resonance (NMR) technique was applied to investigate the in vivo energy metabolism of the graft.
  • (14) Line broadening detected in several of the high-field nuclear magnetic resonance spectra was attributed to cis-trans isomerization.
  • (15) The correlation of posterior intervertebral (facet) joint tropism (asymmetry), degenerative facet disease, and intervertebral disc disease was reviewed in a retrospective study of magnetic resonance images of the lumbar spine from 100 patients with complaints of low back pain and sciatica.
  • (16) In this critical review of human in vivo nuclear magnetic resonance (NMR) spectroscopy, the questions of which chemical species can be detected and with what sensitivity, their biochemical significance, and their potential clinical value are addressed.
  • (17) The location of the internal trans and cis isoprene units in ficaprenol-11 isolated from Ficus elastica was determined by 13C nuclear magnetic resonance.
  • (18) Using sterile conditions, antibodies to G were incubated with a suspension of transformed cells at 4 degrees C, unbound antibodies were then removed, and the cells were incubated with the immunoabsorbent (3 micron magnetic beads; J. Ugelstad et al.
  • (19) The EMD was miniaturized by using rare earth magnets in the construction of both external transmitter and internal receiver.
  • (20) We present three patients in whom the diagnosis of intranasal meningoencephalocele was made by magnetic resonance imaging.

Pincushion


Definition:

  • (n.) A small cushion, in which pins may be stuck for use.

Example Sentences:

  • (1) Contour positions are corrected for pincushion distortion.
  • (2) Previously reported and novel correction techniques were used to reduce veiling glare, pincushion distortion, dc bias, and residual shading effects.
  • (3) The pincushion distortion can be "corrected" (reducing displacements from 5 to 1-2 mm) by calculations based on modeling the distortion as a fourth order two-dimensional polynomial.
  • (4) 7) conglomerated into pincushion-like formations becoming increasingly denser and more compact.
  • (5) While the standard design often results in tissue protrusions or pincushioning, improvements in the design are outlined herein to achieve the best results for defects on the nose.
  • (6) No more 'pincushioning' - if you worried Cinema screens are often curved due to the way the picture is projected onto the screen.
  • (7) The pincushion distortion can be "corrected" (reducing displacements from 2-3 mm to 1 mm) by calculations based on modeling the distortion as a fourth order 2D polynomial.
  • (8) If necessary, these errors in position can be assessed by means of two phantoms placed within the stereotactic guidance system--a "2D-phantom" displaying "pincushion" distortion in the image, and a "3D-phantom" displaying displacement, warp, and tilt of the image plane itself.
  • (9) The illusion generated by a "pincushion grid" is not predicted from the two-dimensional Fourier transform of the grid.
  • (10) The picture will seem to warp inwards - a distortion called the pincushion effect.
  • (11) Magnification errors can be evaluated easily but the distortion (due to pincushion effect) are more difficult to measure.
  • (12) We spent a small fortune on three stabs at fertility treatment at a clinic in Cape Town, but that produced nothing other than a suntan and buttocks like pincushions after daily injections of hormones.
  • (13) These errors in position can be assessed by means of two phantoms placed within the stereotactic guidance system--a "two-dimensional phantom" displaying "pincushion" distortion in the image (i.e., x, y) plane, and the "three-dimensional phantom" displaying displacement, warp, and tilt of the image plane itself.
  • (14) A numerical Fourier transform was made of the pincushion grid illusion and the spectral components orthogonal to the illusory lines were isolated.
  • (15) To minimize the geometric influence, mainly pincushion effect, a cinefilm of a 1 cm grid was placed against the input screen of the image intensifier to correct the distortion by using 3rd degree polynomials.
  • (16) As Ian prepares for the half-mile-long return journey, he points a fistful of oily cotton waste towards the purple thistle-like flowerheads of knapweed, the pink, white and blue pincushion-shaped flowers of scabious, and the vivid blue of cornflower.
  • (17) The interface-controller operates extremely well, but problems related to the pulsed SIT (optimum gate position relative to the sector opening shape of high-voltage pulse, slight pincushion distortion) require more work.

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