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Quantification of the human cerebrovasculature: a 7Tesla and 320-row CT in vivo study.
- Source :
-
Journal of computer assisted tomography [J Comput Assist Tomogr] 2013 Jan-Feb; Vol. 37 (1), pp. 117-22. - Publication Year :
- 2013
-
Abstract
- Objective: Human cerebrovasculature has not been quantified in volume, length, and vascular-brain relationships. We investigated this using imaging.<br />Methods: From 0.5-mm 7T and 320-row CT acquisitions, 6 arterial and 4 venous systems were reconstructed, measured, and analyzed.<br />Results: The ratio of the volume of arterial to venous system is approximately 1:3. The ratio of the volume of dural sinuses to vasculature is 1:2. The ratio of the posterior (PCA) to anterior (ACA) to middle cerebral artery (MCA) is 1:2:4 in volume and length. Ratios of left to right vessels are 1:1 for arteries and veins. Ratios of branching frequency for the ACA, MCA, and PCA are 1:1:1. The branching frequency ratio for superficial to deep veins is 1:2. The MCA occupies 1/2 of arterial length and 1/4 of vascular length. The ratio of the length of superficial to deep veins is 1:1 and each is equal to 1/4 of the vascular length. The ratio of cerebrovasculature to brain volume is 2.5%.<br />Conclusions: Despite its enormous complexity, cerebrovasculature is characterized by 4 approximate proportions, 1:1, 1:2, 1:3, 1:4, and their combinations, 1:1:1 and 1:2:4.
Details
- Language :
- English
- ISSN :
- 1532-3145
- Volume :
- 37
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of computer assisted tomography
- Publication Type :
- Academic Journal
- Accession number :
- 23321844
- Full Text :
- https://doi.org/10.1097/RCT.0b013e3182765906