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논문 기본 정보

자료유형
학술저널
저자정보
Rhee, Sun-Joo (Department of Neurosurgery Seoul Paik Hospital, Inje University College of Medicine) Kim, Myoung-Soo (Department of Neurosurgery Seoul Paik Hospital, Inje University College of Medicine) Lee, Chae-Heuck (Department of Neurosurgery Seoul Paik Hospital, Inje University College of Medicine) Lee, Ghi-Jai (Department of Diagnostic Radiology Seoul Paik Hospital, Inje University College of Medicine)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제42권 제6호
발행연도
2007.1
수록면
446 - 449 (4page)

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Objective : Persistent trigeminal artery variant (PTAV) is an anastomosis between the internal carotid artery (ICA) and the cerebellar artery without any interposing basilar artery segment. We discuss its probable embryological origin and emphasize clinical implications. Methods : Retrospectively 1250 conventional cerebral angiograms and 2947 cranial magnetic resonance angiographies (MRAs) were evaluated for the patients with PTAV. Results : Five patients (four men and one woman, 23 to 76 years of age, median age 65 years) had a PTAV. Three patients who underwent MRA had a PTAV (3/2947=0.1%). Four of the patients who underwent cerebral angiography had a PTAV (4/1250=0.32%). Two of 143 patients who underwent both conventional angiography and cranial MRA showed PTAV. The PTAV was an incidental finding in all five patients. The PTAV originated from the cavernous segment of the left ICA in four patients and from the cavernous segment of the right ICA in one patient. The terminal branch of the PTAV was the anterior inferior cerebellar artery (AICA) and superior cerebellar artery (SCA) in two patients and the AICA only in the other three patients. Conclusion : Neurosurgeons should be aware of possible presence of PTAV. Manipulation of this vessel during a surgical approach to the parasellar region and percutaneous gasserian ganglion procedure may result in hemorrhage or ischemia.

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