Setting Method of the Optimal Slab of Brain MRA for Detective Unruptured Cerebral Aneurysm
| Autor: | Akio Ogura, Hiroki Nakano, Ryosuke Shiina, Tomokazu Takeuchi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.diagnostic_test
business.industry media_common.quotation_subject Brain Intracranial Aneurysm General Medicine Magnetic resonance angiography medicine.anatomical_structure Research Design medicine.artery Line (geometry) Angiography medicine Anterior cerebral artery Slab Unruptured cerebral aneurysm Humans Contrast (vision) Nuclear medicine business Algorithms Magnetic Resonance Angiography Geology Cervical vertebrae media_common |
| Zdroj: | Japanese Journal of Radiological Technology. 75:1446-1451 |
| ISSN: | 1881-4883 0369-4305 |
| DOI: | 10.6009/jjrt.2019_jsrt_75.12.1446 |
| Popis: | Generally, the imaging range of the brain magnetic resonance angiography (MRA) is determined in the subjectivity by the operator used by the plan image that a blood vessel is not depicted. However, a necessary blood vessel may not be often depicted by an error of the setting of the imaging area. Therefore, optimal slab angle, thickness, distance, and image contrast for depiction of the unruptured cerebral aneurysm were examined. The brain MRA of 14 subjects was imaged in a wide area parallel to an orbitomeatal line (OM) line. The line which linked the arteria vertebral (the first cervical vertebrae curved section) to anterior cerebral artery (A3) was determined with an optimal slab base line, and the angle with the OM line was evaluated. Moreover, slavic range including the unruptured aneurysm was calculated. In addition, the distance from the inferior margin of pons to the slavic bottom end was measured. Furthermore, the cerebrovascular contrast by the slave angle was compared. As a result, the slave setting of the range was recommended in brain-MRA as an angle was 34.3 degrees, and the thickness was 56.4 mm, and, as the distance from the inferior margin of pons was 27.6 mm. The cerebrovascular contrast of the optimal slab base line angle did not have a significant difference for an OM line. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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