Shape and orientation of arterial loops in cat sartorius muscle.

I. P. Torres Filho; A. S. Popel; P. C. Johnson; F. Z. Cyrino; E. Bouskela

Shape and orientation of arterial loops in cat sartorius muscle.

I. P. Torres Filho, A. S. Popel, P. C. Johnson, F. Z. Cyrino, E. Bouskela

Research output: Contribution to journal › Article › peer-review

Abstract

A method is described to quantify the shape and orientation of vascular loops (arcades). Shape is characterized by an ellipticity factor, calculated from area and perimeter values. Orientation is measured as the angle formed by the great axis of the loop with the muscle fibers. These parameters were calculated for 772 arteriolar loops of the cat sartorius muscle. The results show that, on the average, the ellipticity factor is a linear function of the number of segments. The observed values change in the opposite direction from the expected values for regular polygons. Simple calculations are presented to rectify this discrepancy. Most loops are oriented parallel to the muscle fibers.

Original language	English (US)
Pages (from-to)	297-302
Number of pages	6
Journal	International journal of microcirculation, clinical and experimental / sponsored by the European Society for Microcirculation
Volume	9
Issue number	3
State	Published - Aug 1990
Externally published	Yes

ASJC Scopus subject areas

Physiology
Cardiology and Cardiovascular Medicine

Cite this

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title = "Shape and orientation of arterial loops in cat sartorius muscle.",

abstract = "A method is described to quantify the shape and orientation of vascular loops (arcades). Shape is characterized by an ellipticity factor, calculated from area and perimeter values. Orientation is measured as the angle formed by the great axis of the loop with the muscle fibers. These parameters were calculated for 772 arteriolar loops of the cat sartorius muscle. The results show that, on the average, the ellipticity factor is a linear function of the number of segments. The observed values change in the opposite direction from the expected values for regular polygons. Simple calculations are presented to rectify this discrepancy. Most loops are oriented parallel to the muscle fibers.",

author = "{Torres Filho}, {I. P.} and Popel, {A. S.} and Johnson, {P. C.} and Cyrino, {F. Z.} and E. Bouskela",

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T1 - Shape and orientation of arterial loops in cat sartorius muscle.

AU - Torres Filho, I. P.

AU - Popel, A. S.

AU - Johnson, P. C.

AU - Cyrino, F. Z.

AU - Bouskela, E.

N1 - Copyright: Medline is the source for the citation and abstract of this record.

PY - 1990/8

Y1 - 1990/8

N2 - A method is described to quantify the shape and orientation of vascular loops (arcades). Shape is characterized by an ellipticity factor, calculated from area and perimeter values. Orientation is measured as the angle formed by the great axis of the loop with the muscle fibers. These parameters were calculated for 772 arteriolar loops of the cat sartorius muscle. The results show that, on the average, the ellipticity factor is a linear function of the number of segments. The observed values change in the opposite direction from the expected values for regular polygons. Simple calculations are presented to rectify this discrepancy. Most loops are oriented parallel to the muscle fibers.

AB - A method is described to quantify the shape and orientation of vascular loops (arcades). Shape is characterized by an ellipticity factor, calculated from area and perimeter values. Orientation is measured as the angle formed by the great axis of the loop with the muscle fibers. These parameters were calculated for 772 arteriolar loops of the cat sartorius muscle. The results show that, on the average, the ellipticity factor is a linear function of the number of segments. The observed values change in the opposite direction from the expected values for regular polygons. Simple calculations are presented to rectify this discrepancy. Most loops are oriented parallel to the muscle fibers.

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JF - International Journal of Microcirculation-Clinical and Experimental

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Shape and orientation of arterial loops in cat sartorius muscle.

Abstract

ASJC Scopus subject areas

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