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Title: Assessment of anatomical variations of cerebral veins based on diagnostic imaging with regard to their clinical aspects

Abstract:

Cerebral veins and their anatomical variability have received little attention in comparison with cerebral arteries. There is a significant disproportion between the large number of publications on cerebral arteries and a lesser number of articles on cerebral veins in the literature. Rapid development of modern minimally invasive neurosurgical approaches and endovascular treatment methods in interventional radiology require detailed anatomical knowledge of cerebral veins. Constant dynamic development of diagnostic imaging methods and the large number of high-resolution diagnostic studies available currently allows us to conduct an assessment of anatomic variations on a great number of subjects. It enables us to precisely assess the prevalence of anatomical variations in the overall population. While classical anatomical descriptions provide information about the course of cerebral veins, there is a lack of studies focusing on the exact prevalence of particular anatomical variants. The aim of this doctoral dissertation was to assess the anatomical variations of cerebral veins on radiological imaging studies. In the first stage of the study, we assessed the anatomy of deep cerebral veins using computed tomography angiography (angio-CT) studies. We conducted a retrospective analysis of 250 head angio-CT studies of adult patients diagnosed at the Department of Radio ; logy, Department of Rescue Medicine and Multiorgan Trauma, University Hospital in Krakow between June 2017 and July 2018 and assessed the anatomy of the internal cerebral vein and its main tributaries, including anterior septal vein, superior thalamostriate vein and lateral direct vein. We also proposed an original classification of the tributaries of internal cerebral vein, with emphasis on clinically significant anatomical variants. In the next step, using the same head angio-CT studies, we assessed the venous anatomy in the pineal region. We analyzed the veins and their connections, and described the most common anatomical variants, especially of basal and internal occipital vein. In the final stage of the study we focused on the most common venous anatomical variants – developmental venous anomalies (DVAs). We performed a retrospective analysis of 6948 head magnetic resonance examinations of adult patients diagnosed at the Voxel Diagnostic Medical Center between April 2015 and April 2019. We assessed the prevalence of developmental venous anomalies in the Polish population, characterized their clinically significant anatomical features and reported the frequency of cavernous malformations coexistent with DVAs. In this doctoral thesis an original classification of internal cerebral vein tributaries was proposed. Clinical classification of anatomical variation ; s of the internal cerebral vein based on diagnostic imaging studies has not yet been published. The existing classifications of venous variants in the pineal region were discussed and expanded. Additionally, the prevalence of developmental venous anomalies among the Polish population was assessed for the first time in the literature. Detailed anatomical knowledge of cerebral veins is important in planning neurosurgical and interventional radiological procedures and may increase their safety and reduce the risk of vascular damage. Image-based anatomical studies are complimentary to the data obtained from classical anatomical studies on cadavers and further increase our understanding of human anatomy.

Place of publishing:

Kraków

Level of degree:

2 - studia doktoranckie

Degree grantor:

Rada Dyscypliny Nauki medyczne

Promoter:

Walocha, Jerzy

Date issued:

2023

Identifier:

oai:dl.cm-uj.krakow.pl:5075

Call number:

ZB-140244

Language:

pol; eng

Access rights:

tylko w bibliotece

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Last modified:

Jun 4, 2024

In our library since:

Apr 11, 2024

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http://dl.cm-uj.krakow.pl:8080/publication/5076

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ZB-140244 Jun 4, 2024
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