7 research outputs found
A novel formula for the classification of blood vessels according to symmetry, asymmetry and hypoplasia
A new mathematical formula for calculating the symmetry, asymmetry and hypoplasia
of blood vessel segments is presented for discussion. The study was conducted
using the computed tomography (CT) files from 80 patients (34 men and
46 women) from the Silesian University Hospital, Silesia, Poland, who were between
the ages of 12 to 76 and had undergone CT angiography of the circle of
Willis. With the use of Gradual Angiographic Image Data Analyser software and
double shuttled glasses, CT files were reconstructed. In addition, 80 renal arteries
(RAs) from spontaneously aborted foetuses ranging in age from 14 to 30 weeks
(24 male and 16 female) were injected with latex and also included in the study.
Digital images of the RAs were taken using a Camedia 4040 camera and analysed
using original analysis software. A novel formula entitled the Vascular Asymmetry
Coefficient (VAC) was derived for this purpose and displays the differences between
the mean diameters of blood vessel segments expressed as a percentage of
the wider vessel with respect to the major diameter. The asymmetrical classification
for a vascular segment of a vessel is given when the difference between the
mean diameters of the vascular segment, as represented by the wider vessel, is
greater than VAC > 10%. The hypoplastic classification is reserved for blood vessels
where the difference between the diameter of the two segments is expressed
as a percentage of the wider vessels and is greater than VAC > 40%. While there
have been inconsistent and arbitrary classifications for the qualitative criteria of
blood vessels, this newly presented algorithm can be used as a standardised tool
and has a considerable range of uses, particularly when comparing blood vessel
symmetry, asymmetry and hypoplasia prior to bifurcation, and unification
The relationship between the dimensions of the right coronary artery and the type of coronary vasculature in human foetuses
Background: The area of vascular supply of particular coronary arteries is directly
linked to the varying typology of the coronary vasculature. This factor
may have a significant influence on the coronary vessel diameters. To date
there has been no published research that analyses the relationship between
the type of coronary vasculature and the dimensions of the epicardial arteries
in the human foetus. There are only a few papers that deal with this issue in
the postnatal period of human life.
Material and methods: The study was carried out on a group of 187 human foetuses
aged five to seven months of intrauterine life. Prior to examination all foetuses
had been conserved in a 9% formaldehyde solution for a minimum of three months.
All foetuses had been aborted naturally. None of them had any external signs of
malformations or developmental abnormalities. The number of foetuses in the particular
age groups was variable. Adachi/Bianchi classification was used to categorize
the particular vasculature types: type I - classic, neither artery is dominating; type II
- dominant right coronary artery; type III - dominant left coronary artery.
Results and conclusions: The analysis of differences between the artery dimensions
in particular types of coronary vasculature revealed that such differences
existed between types I and II and also between types II and III. (Folia
Morphol 2011; 70, 1: 13-17
Terminologia anatomica in the past and the future from perspective of 110th anniversary of Polish Anatomical Terminology
Professional terminology is commonplace, particularly in the fields of mathematics,
medicine, veterinary and natural sciences. The use of the terminology
can be international, as it is with Anatomical Terminology (AT). In the early age
of modern education, anatomists adopted Latin as the international language
for AT. However, at the end of the 20th century, the English language became
more predominant around the world.
It can be said that the AT is a specific collection of scientific terms. One of the
major flaws in early AT was that body structures were described by varying
names, while some of the terms was irrational in nature, and confusing. At this
time, different international committees were working on preparing a unified
final version of the AT, which in the end consisted of 5,640 terms (4,286 originally
from the Basle Nomina Anatomica, BNA). Also, each country wanted to
have its own nomenclature. In order to accomplish this, each country based
their nomenclature on the international AT, and then translated it into their
own language.
The history of the Polish Anatomical Terminology (PAT) is unique, and follows
the events of history. It was first published in 1898, at a time when its neighbours
partitioned the territory of Poland. During 150 years, the Polish culture
and language was under the Russification and Germanization policy. It is
important to note, that even with such difficult circumstances, the PAT was
the first national AT in the world. The PAT was a union of the accepted first
BNA in Latin and the original Polish anatomical equivalents. This union formed
the basis for theoretical and clinical medicine in Poland. (Folia Morphol 2008;
67: 87–97