Acta Stereologica

0351-580X

 

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Yong Tang, Jens R. Nyengaard, Ulrik Baandrup & Hans Jørgen G. Gundersen

Design-based stereology of the human heart

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Abstract

Design-based stereological methods for obtaining estimates of the sizes of myocardial fibers and the number and sizes of capillaries and myocardial fiber nuclei in human autopsy hearts are presented. Sampling of heart tissue was uniform random at all levels, also with respect to orientations for estimates of length and mean sizes as required. Global structural quantities were estimated as: total quantity : = density × volume of left ventricle. Ordinary, unbiased stereological methods were used for estimating the volume, surface area and length density of capillaries and myocardial fibers. The numerical density of fiber nuclei and capillaries were estimated using the optical disector and the physical disector, respectively. Local quantities ("size") were estimated either directly using unbiased estimators to obtain the average individual size and size distribution parameters or indirectly using the relationship: average size : = total quantity I total number. As an individual myocyte cannot be distinguished in the sections used in our studies and may be polynucleated neither individual nor average myocyte volume can be estimated unbiasedly. Several efficient and robust alternatives are, however, provided for reporting various mathematically well defined aspects of fiber size.

Keywords : capillary, fiber nucleus, human heart, left ventricle, myocardial fiber, stereology

To cite this article

Yong Tang, Jens R. Nyengaard, Ulrik Baandrup & Hans Jørgen G. Gundersen, «Design-based stereology of the human heart», Acta Stereologica [En ligne], Volume 18 (1999), Number 3 - Nov. 1999, 367-380 URL : https://popups.ulg.ac.be/0351-580x/index.php?id=2382.

About: Yong Tang

Stereological Research Laboratory, Institute of Pathology and 2nd University Clinic of Internal Medicine, Institute of Experimental Clinical Research, University of Aarhus, Denmark

About: Jens R. Nyengaard

Stereological Research Laboratory, Institute of Pathology and 2nd University Clinic of Internal Medicine, Institute of Experimental Clinical Research, University of Aarhus, Denmark

About: Ulrik Baandrup

Stereological Research Laboratory, Institute of Pathology and 2nd University Clinic of Internal Medicine, Institute of Experimental Clinical Research, University of Aarhus, Denmark

About: Hans Jørgen G. Gundersen

Stereological Research Laboratory, Institute of Pathology and 2nd University Clinic of Internal Medicine, Institute of Experimental Clinical Research, University of Aarhus, Denmark