Toshinori Matsushige1,2,3, Bixia Chen4,5, Philipp Dammann4,5, Sören Johst5, Harald H Quick5,6, Mark E Ladd5,7, Michael Forsting8, Ulrich Sure4, Karsten H Wrede4,5. 1. Department of Neurosurgery, University Hospital Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany. Toshinori.Matsushige@uk-essen.de. 2. Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, 734-8551, Japan. Toshinori.Matsushige@uk-essen.de. 3. Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Kokereiallee 7, Building C84, Essen, 45141, Germany. Toshinori.Matsushige@uk-essen.de. 4. Department of Neurosurgery, University Hospital Essen, University Duisburg-Essen, Hufelandstrasse 55, 45147, Essen, Germany. 5. Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Kokereiallee 7, Building C84, Essen, 45141, Germany. 6. High Field and Hybrid MR Imaging, University Hospital Essen, Hufelandstrasse 55, Essen, 45147, Germany. 7. Division of Medical Physics in Radiology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, 69120, Germany. 8. Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, Essen, 45147, Germany.
Abstract
OBJECTIVES: To investigate in-vivo microanatomy of the subcallosal artery branching from the anterior communicating artery (ACoA) using time-of-flight (TOF) magnetic resonance angiography (MRA) at 7 Tesla. METHODS: Seventy-five subjects, including 15 healthy volunteers and 60 patients, were included in this prospective study. Three raters characterized branches from ACoA in maximum intensity projections of TOF MRA at 7 Tesla acquired with 0.22 × 0.22 × 0.41 mm(3) resolution. Furthermore, course patterns and anatomical features of the subcallosal artery (maximum diameter, length, and branching angle from ACoA) were measured. RESULTS: Branches from the anterior communicating artery were visualized in 63 of 74 (85.1 %) subjects and were identified as the subcallosal artery (93.7 %) and the accessory anterior cerebral artery (6.3 %). The course of the subcallosal artery was classified into 3 groups; C-shaped (55.9 %), straight (16.9 %), and S-shaped (27.2 %). There was a significant difference between the branching angles of C-shaped and straight (p < 0.0001), between C-shaped and S-shaped (p < 0.0001), as well as between straight and S-shaped (p = 0.0113) course patterns. CONCLUSIONS: High-resolution in-vivo 7 T TOF MRA can delineate the microanatomy of the subcallosal artery. Three main variants of course patterns and branching angles from ACoA could be identified. KEY POINTS: • In-vivo 7 Tesla TOF MRA can delineate the subcallosal artery microanatomy • Three distinct course patterns of the subcallosal artery were identified • Branching angles from ACoA significantly differed between subcallosal artery course patterns.
OBJECTIVES: To investigate in-vivo microanatomy of the subcallosal artery branching from the anterior communicating artery (ACoA) using time-of-flight (TOF) magnetic resonance angiography (MRA) at 7 Tesla. METHODS: Seventy-five subjects, including 15 healthy volunteers and 60 patients, were included in this prospective study. Three raters characterized branches from ACoA in maximum intensity projections of TOF MRA at 7 Tesla acquired with 0.22 × 0.22 × 0.41 mm(3) resolution. Furthermore, course patterns and anatomical features of the subcallosal artery (maximum diameter, length, and branching angle from ACoA) were measured. RESULTS: Branches from the anterior communicating artery were visualized in 63 of 74 (85.1 %) subjects and were identified as the subcallosal artery (93.7 %) and the accessory anterior cerebral artery (6.3 %). The course of the subcallosal artery was classified into 3 groups; C-shaped (55.9 %), straight (16.9 %), and S-shaped (27.2 %). There was a significant difference between the branching angles of C-shaped and straight (p < 0.0001), between C-shaped and S-shaped (p < 0.0001), as well as between straight and S-shaped (p = 0.0113) course patterns. CONCLUSIONS: High-resolution in-vivo 7 T TOF MRA can delineate the microanatomy of the subcallosal artery. Three main variants of course patterns and branching angles from ACoA could be identified. KEY POINTS: • In-vivo 7 Tesla TOF MRA can delineate the subcallosal artery microanatomy • Three distinct course patterns of the subcallosal artery were identified • Branching angles from ACoA significantly differed between subcallosal artery course patterns.
Authors: Karsten H Wrede; Philipp Dammann; Sören Johst; Christoph Mönninghoff; Marc Schlamann; Stefan Maderwald; I Erol Sandalcioglu; Mark E Ladd; Michael Forsting; Ulrich Sure; Lale Umutlu Journal: Eur Radiol Date: 2015-06-17 Impact factor: 5.315
Authors: Michael K Liem; Jeroen van der Grond; Maarten J Versluis; Joost Haan; Andrew G Webb; Michel D Ferrari; Mark A van Buchem; Saskia A J Lesnik Oberstein Journal: Stroke Date: 2010-10-21 Impact factor: 7.914
Authors: T Matsushige; M Kraemer; T Sato; P Berlit; M Forsting; M E Ladd; R Jabbarli; U Sure; N Khan; M Schlamann; K H Wrede Journal: AJNR Am J Neuroradiol Date: 2018-06-07 Impact factor: 3.825
Authors: T Matsushige; M Kraemer; M Schlamann; P Berlit; M Forsting; M E Ladd; U Sure; K H Wrede Journal: AJNR Am J Neuroradiol Date: 2016-05-05 Impact factor: 3.825
Authors: Karsten H Wrede; Toshinori Matsushige; Sophia L Goericke; Bixia Chen; Lale Umutlu; Harald H Quick; Mark E Ladd; Sören Johst; Michael Forsting; Ulrich Sure; Marc Schlamann Journal: Eur Radiol Date: 2016-03-18 Impact factor: 5.315