Black Holes on MR Images of the Brain of Patients with Björk-Shiley Heart Valves: Additional Observation in Three Cases

Maarten J. van Gorp, Bas A.J.M. de Mol, Chris J.G. Bakker, Yolanda van der Graaf and Willem P.T.M. Mali

Article Figures & Data

Figures

  • Fig 1.

    Patient 2.

    A, Axial view T2*-weighted gradient-echo image (710/27.6/2 [TR/TE/number of excitations]) shows a black hole (arrow). Repeat images obtained after 1 year appeared unchanged, with no increase in number or size of black holes (not shown).

    B, Corresponding axial view T2-weighted spin-echo image (1380/60/2) shows the same black hole with a typical white halo (arrow).

  • Fig 2.

    Patient 3.

    A, Axial view T2*-weighted gradient-echo image (710/27.6/2), obtained 1 week before double valve replacement, shows no apparent abnormalities.

    B, Axial view T2*-weighted gradient-echo image (710/27.6/2), obtained 5 months after successful double valve replacement, shows one of the two large black holes (arrow)

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