"The labels C1-C7 are not universally recognised; the descriptive terms are preferred for reporting. In addition, sometimes the term "paraclinoid" is used, encompassing both the clinoid and ophthalmic segments 8. There is a useful mnemonic to remember these segments."
"There are seven segments in a proposed endovascular/angiography-driven classification from the NYU Langone Medical Centre 2. Although not a universal classification scheme, it could be beneficial to familiarise oneself with it, as usage of these terms has become common:"
"TIPIC syndrome"
"Vidian artery"
Expected headings
"Segments"
"There are several classification systems, of which the most commonly used was described by Bouthillier et al. in 1996 1, and has been integrated into the Terminologia Neuroanatomica 10.There are seven segments in the Bouthillier classification:"
"The labels C1-C7 are not universally recognised; the descriptive terms are preferred for reporting. In addition, sometimes the term "paraclinoid" is used, encompassing both the clinoid and ophthalmic segments 8. There is a useful mnemonic to remember these segments."
"There are seven segments in a proposed endovascular/angiography-driven classification from the NYU Langone Medical Centre 2. Although not a universal classification scheme, it could be beneficial to familiarise oneself with it, as usage of these terms has become common:"
"There are several useful mnemonics to remember the branches of the internal carotid artery."
"The labels C1-C7 are not universally recognised; the descriptive terms are preferred for reporting. In addition, sometimes the term "paraclinoid" is used, encompassing both the clinoid and ophthalmic segments 8. There is a useful mnemonic to remember these segments."
"It first turns 90° anteromedially within the carotid canal as the C2 segment to run through the petrous temporal bone. As it exits the carotid canal, it lies superior to the foramen lacerum (C3 segment) and then turns 90° superiorly and then immediately turns another 90 ° anteriorly to groove the body of the sphenoid and enter the medial aspect of the cavernous sinus at the petrolingual ligament (C4 segment). Within the cavernous sinus, the abducens nerve is intimately related to the artery at its lateral aspect. At the anterior end of the cavernous sinus, the ICA makes another 90° turn superiorly through the proximal dural ring (C5 segment) and a final 90° turn posteriorly to pass medial to the anterior clinoid process, continuing through the distal dural ring (C6 segment). The terminal ICA (C7 segment) begins just proximal to the origin of the posterior communicating artery. The ICA gives off this artery posteriorly as well as the anterior choroidal artery before finally dividing into the middle and anterior cerebral arteries 1."