18 research outputs found

    Lens and pupil diameters of the PM eyes.

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    <p>The means of the diameter <i>d</i> (in µm) of the PM eye lenses for the three different age groups are given for N spiders before ecdysis and after ecdysis. The last column gives the values for <i>t</i> = 0 calculated from a linear regression for the first 130 hours after ecdysis as an estimate of the pupils' initial diameter.</p

    Photographs of freshly molted spiders.

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    <p>Portraits of <i>Cupiennius salei</i> (A), <i>Lycosa tarentula</i> (B) and <i>Heteropoda venatoria</i> (C) the day after ecdysis. In all three species the iris formed by the pigment ring is clearly visible and was observed to disappear in the days thereafter. Scale bars: 500 µm.</p

    Lens and pupil diameters of the AM eyes.

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    <p>The means of the diameter <i>d</i> (in µm) of the AM eye lenses for the three different age groups are given for N spiders before ecdysis and after ecdysis. The last column gives the values for <i>t</i> = 0 calculated from a linear regression for the first 130 hours after ecdysis as an estimate of the pupils' initial diameter.</p

    The pupil size as a function of time.

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    <p>(A) The mean pupil diameters of the PM and AM eyes for a 7-month-old spider as a function of the time after ecdysis. The data were fitted using <i>d</i> = <i>d<sub>f</sub></i> –<i>a</i>/(1+exp((<i>t</i>–<i>t<sub>0</sub></i>)/<i>b</i>)), where <i>d</i> is the pupil diameter and <i>d<sub>f</sub></i> is its asymptotic value for large times <i>t</i>. PM eyes (r<sup>2</sup> = 0.9993): <i>d<sub>f</sub></i> = 817 µm, <i>a</i> = 600 µm, <i>t<sub>0</sub></i> = 32 h, <i>b</i> = 69 h. AM eyes (r<sup>2</sup> = 0.9997): <i>d<sub>f</sub></i> = 626 µm, <i>a</i> = 400 µm, <i>t<sub>0</sub></i> = 61 h, <i>b</i> = 60 h. (B) The pupil-to-lens ratios of the PM eyes of <i>Cupiennius salei</i>, for three different age groups as a function of the time after ecdysis.</p

    Comparison of micrographs and microCT scans.

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    <p>The upper part shows <i>in vivo</i> micrographs of a PM eye of a spider the day after ecdysis (left panel) and 9 days after ecdysis (right panel), taken just before the preparation of the spiders for the micro CT scans. The lower part shows sections through the reconstructed PM eyes. Scale bars: 200 µm.</p

    Comparison between MO on early cine SSFP and LGE.

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    <p>A) Cine imaging performed 4 minutes after contrast medium injection. A demarcated crescent shaped hypointensity representing MO in the midventricular inferior myocardium. B) LGE imaging 19 minutes after contrast medium injection. Hyperenhanced midventricular inferior myocardium missing MO at an identical slice position compared to cine imaging (see arrows for comparison).</p

    MO with different imaging methods.

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    <p>Early enhancement 9 min after contrast agent: A) Cine SSFP B) IR GE imaging and C) PSIR. Late enhancement 23 min after contrast agent: D) Cine SSFP E) IR GE imaging and F) PSIR. Note the comparable extent of MO with SSFP and IR imaging at each time point, but the greater extent of MO at early imaging (A-C) compared to late imaging (D-F).</p

    Cine and LGE imaging after 6 and 14.5 minutes respectively.

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    <p>Both images (A and B) show a well demarcated hyperintense midventricular inferolateral myocardium with a subendocardial located crescent shaped hypointensity representing myocardial infarction with MO (arrows: MO size, dotted arrows: infarct size).</p
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