Aortic valve cusp vessel density: Relationship with tissue thickness

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Presentation transcript:

Aortic valve cusp vessel density: Relationship with tissue thickness K.L. Weind, PhDa,b, C.G. Ellis, PhDb, D.R. Boughner, MD, PhDa,b,c The Journal of Thoracic and Cardiovascular Surgery Volume 123, Issue 2, Pages 333-340 (February 2002) DOI: 10.1067/mtc.2002.119696 Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 1 A, Magnified region of interest in base of cusp (4× magnification) demonstrating microvasculature filled with Aquablack. B, Example of thickness map of whole cusp generated from radiographic thickness data. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 333-340DOI: (10.1067/mtc.2002.119696) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 2 Schematic of grid in circumferential and radial directions overlaid on full images of cusps for stereographic vessel density analysis. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 333-340DOI: (10.1067/mtc.2002.119696) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 3 Schematic of porcine aortic valve cusp outlining regions for analysis: base (black) and rest of cusp (white). The Journal of Thoracic and Cardiovascular Surgery 2002 123, 333-340DOI: (10.1067/mtc.2002.119696) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 4 A, Porcine aortic valve cusp section at 100× magnification stained with Movats pentachrome denoting 3 layers. F, Fibrosa; S, spongiosa; V, ventricularis. Note location of vasculature within spongiosa (vessel lumen appears black from Aquablack filling). Blue arrows point to examples of vessels filled with Aquablack; yellow arrows point to vessels where Aquablack filling did not occur. B and C, Two regions of interest outlined in A are shown at 200× magnification to better visualize vessel lumen. B, Region at top in photo; C, lower region in photo. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 333-340DOI: (10.1067/mtc.2002.119696) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 5 Plot of cusp thickness versus vessel density showing both base and rest of cusp. Median vessel density of this plot is 5.16 vessels/mm3. The Journal of Thoracic and Cardiovascular Surgery 2002 123, 333-340DOI: (10.1067/mtc.2002.119696) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions