ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY

Vertebral arteries ascend lateral to the cervical spine. Although non-contrasting tomographic studies have attempted to determine the anatomical relationship between these arteries and the spine, the presence and position of the former have yet to be clearly demonstrated. This study was thus aimed t...

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Autores principales:	Gonçalves Martins,Johnny Wesley, Pratesi,Riccardo, China Bezerra,Armando José
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2003
Materias:	Vertebral artery Sinal column Computerized tomography
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200005
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spelling	oai:scielo:S0717-950220030002000052005-09-13ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDYGonçalves Martins,Johnny WesleyPratesi,RiccardoChina Bezerra,Armando José Vertebral artery Sinal column Computerized tomography Vertebral arteries ascend lateral to the cervical spine. Although non-contrasting tomographic studies have attempted to determine the anatomical relationship between these arteries and the spine, the presence and position of the former have yet to be clearly demonstrated. This study was thus aimed to determine the position of the vertebral arteries in relation to the midline, anterior and posterior planes of the vertebral body of each cervical vertebrae. Twenty six adult patients, without lesions that could distort normal anatomy, were employed as subjects and 52 vertebral arteries were analyzed. Two-dimensional computerized tomographies scans were conducted following the injection of an intra-venous contrast. Statistical analyses evaluated the differences between the distances of the vertebral arteries to the various cervical vertebrae. At the level of C1 and C7 the vertebral arteries were found to be farther from the midline plane (p<0.0001), compared to the other levels. The left vertebral artery was also found to be closer to the midline plane of C1 (p=0.0461) than the right artery. As these arteries ascended, greater distances from the anterior plane were verified. Finally, the vertebral arteries migrated dorsally in relation to the posterior plane, reaching significant distances at C1 (smallest distance) and C7 (greatest distance) (p<0.0001 and p<0.0001, respectivelly). The vertebral arteries, therefore, do not seem to follow a linear ascending pathway, distancing themselves from the midline plane at their upper and lower limits. Lateral, dorsal and ventral migrations were observed, in relation to the cervical vertebrae, rendering these arteries less vulnerable ventrally at C1 and at the level of the intervertebral foramina at C7info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.21 n.2 20032003-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200005en10.4067/S0717-95022003000200005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Vertebral artery Sinal column Computerized tomography
spellingShingle	Vertebral artery Sinal column Computerized tomography Gonçalves Martins,Johnny Wesley Pratesi,Riccardo China Bezerra,Armando José ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
description	Vertebral arteries ascend lateral to the cervical spine. Although non-contrasting tomographic studies have attempted to determine the anatomical relationship between these arteries and the spine, the presence and position of the former have yet to be clearly demonstrated. This study was thus aimed to determine the position of the vertebral arteries in relation to the midline, anterior and posterior planes of the vertebral body of each cervical vertebrae. Twenty six adult patients, without lesions that could distort normal anatomy, were employed as subjects and 52 vertebral arteries were analyzed. Two-dimensional computerized tomographies scans were conducted following the injection of an intra-venous contrast. Statistical analyses evaluated the differences between the distances of the vertebral arteries to the various cervical vertebrae. At the level of C1 and C7 the vertebral arteries were found to be farther from the midline plane (p<0.0001), compared to the other levels. The left vertebral artery was also found to be closer to the midline plane of C1 (p=0.0461) than the right artery. As these arteries ascended, greater distances from the anterior plane were verified. Finally, the vertebral arteries migrated dorsally in relation to the posterior plane, reaching significant distances at C1 (smallest distance) and C7 (greatest distance) (p<0.0001 and p<0.0001, respectivelly). The vertebral arteries, therefore, do not seem to follow a linear ascending pathway, distancing themselves from the midline plane at their upper and lower limits. Lateral, dorsal and ventral migrations were observed, in relation to the cervical vertebrae, rendering these arteries less vulnerable ventrally at C1 and at the level of the intervertebral foramina at C7
author	Gonçalves Martins,Johnny Wesley Pratesi,Riccardo China Bezerra,Armando José
author_facet	Gonçalves Martins,Johnny Wesley Pratesi,Riccardo China Bezerra,Armando José
author_sort	Gonçalves Martins,Johnny Wesley
title	ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
title_short	ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
title_full	ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
title_fullStr	ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
title_full_unstemmed	ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY
title_sort	anatomical relationship between vertebral arteries and cervical vertebrae: a computerized tomography study
publisher	Sociedad Chilena de Anatomía
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200005
work_keys_str_mv	AT goncalvesmartinsjohnnywesley anatomicalrelationshipbetweenvertebralarteriesandcervicalvertebraeacomputerizedtomographystudy AT pratesiriccardo anatomicalrelationshipbetweenvertebralarteriesandcervicalvertebraeacomputerizedtomographystudy AT chinabezerraarmandojose anatomicalrelationshipbetweenvertebralarteriesandcervicalvertebraeacomputerizedtomographystudy
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ANATOMICAL RELATIONSHIP BETWEEN VERTEBRAL ARTERIES AND CERVICAL VERTEBRAE: A COMPUTERIZED TOMOGRAPHY STUDY

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