Three-dimensional arrangement of the vasa vasorum in explanted segments of the aged human great saphenous vein: scanning electron microscopy and three-dimensional morphometry of vascular corrosion casts

The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology
A LametschwandtnerJ Stingl

Abstract

The vasa vasorum of skeletonized and nonskeletonized segments of five human great saphenous veins (GSVs), harvested during coronary bypass grafting, were cannulated, rinsed, and injected (casted) with the polymerizing resin Mercox-Cl-2B. After removal of the dry vascular tissue, the casts were examined using scanning electron microscopy. Stereopaired images (tilt angle, 6 degrees ) were taken, imported into a 3D morphometry system, and the 3D architecture of the vasa vasorum (arterial and venous vasa as well as capillaries) was studied qualitatively and quantitatively in terms of vasa diameters, intervascular and interbranching distances, and branching angles. Diameters of parent (d(0)) and large (d(1)) and small (d(2)) daughter vessels of arterial and venous bifurcations served to calculate asymmetry ratios (alpha) and area ratios (beta). Additionally, deviations of bifurcations and branching angles from optimal branches were calculated for selected arterial vasa. The arrangement of the vasa vasorum closely followed the longitudinally oriented connective tissue fibers in the adventitia and the circularly arranged smooth muscle cell layers within the outer layers of the media. Venous vasa by far outnumbered arterial vasa. Vasa ...Continue Reading

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Citations

Jul 21, 2012·Transplantation·Zurab KakabadzeEkaterine Berishvili
Jun 11, 2014·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Markus HerbstBernd Minnich
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Dec 30, 2009·Scanning·Laura Beatriz Oliveira De OliveiraMaria Antonieta Lopes De Souza
Mar 24, 2009·Birth Defects Research. Part A, Clinical and Molecular Teratology·Anna RatajskaMichał Juszyński
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May 17, 2018·Surgical and Radiologic Anatomy : SRA·Josef StinglMatej Patzelt
Jun 18, 2014·Circulation·Mary Jo Mulligan-Kehoe, Michael Simons
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May 5, 2007·Scanning·Flaviana Dornela VerliMaria Antonieta Lopes de Souza
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Apr 2, 2019·Phlebology·David KachlikVaclav Baca
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Jul 20, 2018·Surgical and Radiologic Anatomy : SRA·Vladimir MusilJosef Stingl
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