References
- Ardakani SK, Dadmehr M, Nejat F, Ansari S, Eftekhar B, Tajik P, El Khashab M, Yazdani S, Ghodsi M, Mahjoub F, Monajemzadeh M, Nazparvar B, Abdi-Rad A. The cerebral arterial circle (circulus arteriosus cerebri): an anatomical study in fetus and infant samples. Pediatr Neurosurg 2008;44:388-92. https://doi.org/10.1159/000149906
- Eftekhar B, Dadmehr M, Ansari S, Ghodsi M, Nazparvar B, Ketabchi E. Are the distributions of variations of circle of Willis different in different populations? Results of an anatomical study and review of literature. BMC Neurol 2006;6:22. https://doi.org/10.1186/1471-2377-6-22
- Lazorthes G, Gouaze A, Santini JJ, Salamon G. Le cercle arteriel du cerveau (circulus arteriosus cerebri). Anat Clin 1979;1:241-57. https://doi.org/10.1007/BF01654581
- Seydel HG. The diameters of the cerebral arteries of the human fetus. Anat Rec 1964;150:79-88. https://doi.org/10.1002/ar.1091500108
- Macchi C, Catini C, Federico C, Gulisano M, Pacini P, Cecchi F, Corcos L, Brizzi E. Magnetic resonance angiographic evaluation of circulus arteriosus cerebri (circle of Willis): a morphologic study in 100 human healthy subjects. Ital J Anat Embryol 1996;101:115-23.
- Bhagwati SN, Deshpande HG. Study of circle of Willis in 1021 consecutive autopsies: incidence of aneurysms, anatomical variations and atherosclerosis. Ann Acad Med Singapore 1993;22(3 Suppl):443-6.
- Aydın ME, Kaya AH, Kopuz C, Demir MT, Corumlu U, Dagcinar A. Bilateral origin of superior cerebellar arteries from the posterior cerebral arteries, and clues to its embryologic basis. Anat Cell Biol 2011;44:164-7. https://doi.org/10.5115/acb.2011.44.2.164
- Mitchell DG, Merton DA, Mirsky PJ, Needleman L. Circle of Willis in newborns: color Doppler imaging of 53 healthy fullterm infants. Radiology 1989;172:201-5. https://doi.org/10.1148/radiology.172.1.2662251
- Macchi C, Giannelli F, Cecchi F, Gulisano M, Pacini P, Corcos L, Catini C, Brizzi E. The inner diameter of human intracranial vertebral artery by color Doppler method. Ital J Anat Embryol 1996;101:81-7.
- Macchi C, Catini C, Giannelli F, Cecchi F, Gulisano M, Pacini P, Brizzi E. The blood-flow velocity analysis as a possible method for arterial calibre discovery. A statistical investigation in 108 human subjects by color-Doppler method. Ital J Anat Embryol 1996;101:45-55.
- Stojanovic N, Stefanovic I, Randjelovic S, Mitic R, Bosnjakovic P, Stojanov D. Presence of anatomical variations of the circle of Willis in patients undergoing surgical treatment for ruptured intracranial aneurysms. Vojnosanit Pregl 2009;66:711-7. https://doi.org/10.2298/VSP0909711S
- Rhoton AL Jr. The supratentorial arteries. Neurosurgery 2002;51(4 Suppl):S53-120.
- Milenkovic Z, Vucetic R, Puzic M. Asymmetry and anomalies of the circle of Willis in fetal brain. Microsurgical study and functional remarks. Surg Neurol 1985;24:563-70. https://doi.org/10.1016/0090-3019(85)90275-7
- Saeki N, Rhoton AL Jr. Microsurgical anatomy of the upper basilar artery and the posterior circle of Willis. J Neurosurg 1977;46:563-78. https://doi.org/10.3171/jns.1977.46.5.0563
- Kayembe KN, Sasahara M, Hazama F. Cerebral aneurysms and variations in the circle of Willis. Stroke 1984;15:846-50. https://doi.org/10.1161/01.STR.15.5.846
- Horikoshi T, Akiyama I, Yamagata Z, Sugita M, Nukui H. Magnetic resonance angiographic evidence of sex-linked variations in the circle of Willis and the occurrence of cerebral aneurysms. J Neurosurg 2002;96:697-703. https://doi.org/10.3171/jns.2002.96.4.0697
- Hoksbergen AW, Majoie CB, Hulsmans FJ, Legemate DA. Assessment of the collateral function of the circle of Willis: three-dimensional time-of-flight MR angiography compared with transcranial color-coded duplex sonography. AJNR Am J Neuroradiol 2003;24:456-62.
- Chuang YM, Liu CY, Pan PJ, Lin CP. Posterior communicating artery hypoplasia as a risk factor for acute ischemic stroke in the absence of carotid artery occlusion. J Clin Neurosci 2008;15:1376-81. https://doi.org/10.1016/j.jocn.2008.02.002
- Bugnicourt JM, Garcia PY, Peltier J, Bonnaire B, Picard C, Godefroy O. Incomplete posterior circle of willis: a risk factor for migraine? Headache 2009;49:879-86. https://doi.org/10.1111/j.1526-4610.2009.01389.x
- Alpers BJ, Berry RG, Paddison RM. Anatomical studies of the circle of Willis in normal brain. AMA Arch Neurol Psychiatry 1959;81:409-18. https://doi.org/10.1001/archneurpsyc.1959.02340160007002
- Stock KW, Wetzel S, Kirsch E, Bongartz G, Steinbrich W, Radue EW. Anatomic evaluation of the circle of Willis: MR angiography versus intraarterial digital subtraction angiography. AJNR Am J Neuroradiol 1996;17:1495-9.
- Malamateniou C, Adams ME, Srinivasan L, Allsop JM, Counsell SJ, Cowan FM, Hajnal JV, Rutherford MA. The anatomic variations of the circle of Willis in preterm-at-term and termborn infants: an MR angiography study at 3T. AJNR Am J Neuroradiol 2009;30:1955-62. https://doi.org/10.3174/ajnr.A1724
- Papantchev V, Hristov S, Todorova D, Naydenov E, Paloff A, Nikolov D, Tschirkov A, Ovtscharoff W. Some variations of the circle of Willis, important for cerebral protection in aortic surgery: a study in Eastern Europeans. Eur J Cardiothorac Surg 2007;31:982-9. https://doi.org/10.1016/j.ejcts.2007.03.020
- Van Overbeeke JJ, Hillen B, Tulleken CA. A comparative study of the circle of Willis in fetal and adult life. The configuration of the posterior bifurcation of the posterior communicating artery. J Anat 1991;176:45-54.
- el Khamlichi A, Azouzi M, Bellakhdar F, Ouhcein A, Lahlaidi A. Anatomic configuration of the circle of Willis in the adult studied by injection technics. Apropos of 100 brains. Neurochirurgie 1985;31:287-93.
- Baptista AG. Studies on the arteries of the brain. II. The anterior cerebral artery: some anatomic features and their clinical implications. Neurology 1963;13:825-35. https://doi.org/10.1212/WNL.13.10.825
- Hillen B. The variability of the circulus arteriosus (Willisii): order or anarchy? Acta Anat (Basel) 1987;129:74-80. https://doi.org/10.1159/000146380
- Fisher CM. The circle of Willis: anatomical variations. Vasc Dis 1965;2:99-105.
- Riggs HE, Rupp C. Variation in form of circle of Willis. The relation of the variations to collateral circulation: anatomic analysis. Arch Neurol 1963;8:8-14. https://doi.org/10.1001/archneur.1963.00460010024002
- Orlandini GE, Ruggiero C, Orlandini SZ, Gulisano M. Blood vessel size of circulus arteriosus cerebri (circle of Willis): a statistical research on 100 human subjects. Acta Anat (Basel) 1985;123:72-6. https://doi.org/10.1159/000146042
- Caruso G, Vincentelli F, Rabehanta P, Giudicelli G, Grisoli F. Anomalies of the P1 segment of the posterior cerebral artery: early bifurcation or duplication, fenestration, common trunk with the superior cerebellar artery. Acta Neurochir (Wien) 1991;109:66-71. https://doi.org/10.1007/BF01405701
- Gielecki J, Zurada A, Kozlowska H, Nowak D, Loukas M. Morphometric and volumetric analysis of the middle cerebral artery in human fetuses. Acta Neurobiol Exp (Wars) 2009;69:129-37.
- Gielecki JS, Syc B, Wilk R, Musiał-Kopiejka M, Piwowarczyk- Nowak A. Quantitative evaluation of aortic arch development using digital-image analysis. Ann Anat 2006;188:19-23. https://doi.org/10.1016/j.aanat.2005.04.013
- Goscicka D, Gielecki J, Materka A. Application of digital image analysis system for measurements of the blood vessels parameters (diameter, length, volume). Folia Morphol (Warsz) 1990;49:1-7.
- Ligier Y, Ratib O, Logean M, Girard C. Osiris: a medical imagemanipulation system. MD Comput 1994;11:212-8.
- Bird P, Lassere M, Shnier R, Edmonds J. Computerized measurement of magnetic resonance imaging erosion volumes in patients with rheumatoid arthritis: a comparison with existing magnetic resonance imaging scoring systems and standard clinical outcome measures. Arthritis Rheum 2003;48:614-24. https://doi.org/10.1002/art.10820
- Dulguerov P, Wang D, Perneger TV, Marchal F, Lehmann W. Videomimicography: the standards of normal revised. Arch Otolaryngol Head Neck Surg 2003;129:960-5. https://doi.org/10.1001/archotol.129.9.960
- Hirasawa Y, Bashir WA, Smith FW, Magnusson ML, Pope MH, Takahashi K. Postural changes of the dural sac in the lumbar spines of asymptomatic individuals using positional stand-up magnetic resonance imaging. Spine (Phila Pa 1976) 2007;32:E136-40. https://doi.org/10.1097/01.brs.0000255202.94153.ca