Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging.
Understanding the anatomy of the anterior septal vein (ASV) is critical for minimally invasive procedures to the third ventricle and for assessing lesion size and venous drainage in the anterior cranial fossa. Accordingly, this study evaluated topographic anatomy and anatomic variation of the ASV us...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2016-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5055311?pdf=render |
| _version_ | 1818127890749849600 |
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| author | Zhengzhen Chen Huihuang Qiao Yu Guo Jiance Li Huizhong Miao Caiyun Wen Xindong Wen Xiaofen Zhang Xindong Yang Chengchun Chen |
| author_facet | Zhengzhen Chen Huihuang Qiao Yu Guo Jiance Li Huizhong Miao Caiyun Wen Xindong Wen Xiaofen Zhang Xindong Yang Chengchun Chen |
| author_sort | Zhengzhen Chen |
| collection | DOAJ |
| description | Understanding the anatomy of the anterior septal vein (ASV) is critical for minimally invasive procedures to the third ventricle and for assessing lesion size and venous drainage in the anterior cranial fossa. Accordingly, this study evaluated topographic anatomy and anatomic variation of the ASV using susceptibility-weighted imaging (SWI).Sixty volunteers were examined using a 3.0T MR system. The diameter of the ASV and distance between bilateral septal points were measured. ASVs were divided into types 1 (only drains frontal lobe) and 2 (drains both frontal lobe and head of the caudate nucleus). We evaluated the ASV-internal cerebral vein (ICV) junction based on its positional relationship with the appearance of a venous angle or a false venous angle and the foramen of Monro. Fused SW and T1-weighted images were used to observe positional relationships between the course of the ASV and the surrounding brain structures.The ASV and its small tributaries were clearly visualized in 120 hemispheres (100%). The average diameter of ASVs was 1.05±0.17 mm (range 0.9-1.6 mm). The average distance between bilateral septal points was 2.23±1.03 mm (range 1.3-6.6 mm). The ASV types 1 and 2 were in 77 (64.2%) and 43 (35.8%) hemispheres, respectively. In 83 (69.2%) hemispheres, the ASV-ICV junction was situated at the venous angle and the posterior margin of the foramen of Monro. In 37 (30.8%) hemispheres, the ASV-ICV junction was situated beyond the posterior margin of the foramen of Monro. The average distance between the posteriorly located ASV-ICV junction and the posterior margin of the foramen of Monro was 6.41±3.95 mm (range 2.4-15.9 mm).Using SWI, the topographic anatomy and anatomic variation of the ASV were clearly demonstrated. Preoperative assessment of anatomic variation of the ASV may be advantageous for minimally invasive neurosurgical procedures. |
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| id | doaj.art-9e8004c1898f4df5bd4866c8dfac398b |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-11T07:24:33Z |
| publishDate | 2016-01-01 |
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| spelling | doaj.art-9e8004c1898f4df5bd4866c8dfac398b2022-12-22T01:15:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-011110e016422110.1371/journal.pone.0164221Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging.Zhengzhen ChenHuihuang QiaoYu GuoJiance LiHuizhong MiaoCaiyun WenXindong WenXiaofen ZhangXindong YangChengchun ChenUnderstanding the anatomy of the anterior septal vein (ASV) is critical for minimally invasive procedures to the third ventricle and for assessing lesion size and venous drainage in the anterior cranial fossa. Accordingly, this study evaluated topographic anatomy and anatomic variation of the ASV using susceptibility-weighted imaging (SWI).Sixty volunteers were examined using a 3.0T MR system. The diameter of the ASV and distance between bilateral septal points were measured. ASVs were divided into types 1 (only drains frontal lobe) and 2 (drains both frontal lobe and head of the caudate nucleus). We evaluated the ASV-internal cerebral vein (ICV) junction based on its positional relationship with the appearance of a venous angle or a false venous angle and the foramen of Monro. Fused SW and T1-weighted images were used to observe positional relationships between the course of the ASV and the surrounding brain structures.The ASV and its small tributaries were clearly visualized in 120 hemispheres (100%). The average diameter of ASVs was 1.05±0.17 mm (range 0.9-1.6 mm). The average distance between bilateral septal points was 2.23±1.03 mm (range 1.3-6.6 mm). The ASV types 1 and 2 were in 77 (64.2%) and 43 (35.8%) hemispheres, respectively. In 83 (69.2%) hemispheres, the ASV-ICV junction was situated at the venous angle and the posterior margin of the foramen of Monro. In 37 (30.8%) hemispheres, the ASV-ICV junction was situated beyond the posterior margin of the foramen of Monro. The average distance between the posteriorly located ASV-ICV junction and the posterior margin of the foramen of Monro was 6.41±3.95 mm (range 2.4-15.9 mm).Using SWI, the topographic anatomy and anatomic variation of the ASV were clearly demonstrated. Preoperative assessment of anatomic variation of the ASV may be advantageous for minimally invasive neurosurgical procedures.http://europepmc.org/articles/PMC5055311?pdf=render |
| spellingShingle | Zhengzhen Chen Huihuang Qiao Yu Guo Jiance Li Huizhong Miao Caiyun Wen Xindong Wen Xiaofen Zhang Xindong Yang Chengchun Chen Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. PLoS ONE |
| title | Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. |
| title_full | Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. |
| title_fullStr | Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. |
| title_full_unstemmed | Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. |
| title_short | Visualization of Anatomic Variation of the Anterior Septal Vein on Susceptibility-Weighted Imaging. |
| title_sort | visualization of anatomic variation of the anterior septal vein on susceptibility weighted imaging |
| url | http://europepmc.org/articles/PMC5055311?pdf=render |
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