scholarly journals Incidence of hypoplastic posterior communicating artery and fetal posterior cerebral artery in Andhra population of India: a retrospective 3-Tesla magnetic resonance angiographic study

2020 ◽  
Vol 53 (3) ◽  
pp. 272-278
Author(s):  
Sharmila P Bhanu ◽  
Suneetha Pentyala ◽  
Devi K Sankar
Keyword(s):  
Magnetic Resonance ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Posterior Communicating Artery ◽  
3 Tesla ◽  
Angiographic Study ◽  
Magnetic Resonance Angiographic

scholarly journals Association between patency of the circle of Willis and diabetes mellitus in patients with cerebral ischaemic stroke

2017 ◽  
Vol 45 (2) ◽  
pp. 723-732 ◽  
Author(s):  
Ying Chi ◽  
Zu-neng Lu
Keyword(s):  
Diabetes Mellitus ◽  
Magnetic Resonance ◽  
Ischaemic Stroke ◽  
Cerebral Artery ◽  
Basilar Artery ◽  
Patency Rate ◽  
Posterior Cerebral Artery ◽  
Brain Infarction ◽  
Posterior Communicating Artery ◽  
Patients With Diabetes

Objective To examine patency of the cerebral anterior and posterior communicating arteries in patients with ischaemic stroke with or without diabetes mellitus. Methods This retrospective study included patients with acute ischaemic stroke treated between July 2011 and May 2016. Cerebral infarction was evaluated by magnetic resonance imaging. Anterior and posterior communicating-artery patency was determined using magnetic resonance angiography. Vessels were defined as patent or occluded. Results Out of 1 406 patients, incidence of vertebral basilar artery brain infarction and posterior cerebral artery brain infarction were significantly higher in patients with diabetes versus those without diabetes (35.5% versus 22.3% and 11.7% versus 6.8%, respectively). Among patients with posterior cerebral artery brain infarction, anterior and posterior communicating-artery patency rates were higher in patients with diabetes versus those without diabetes (66.7 versus 23.5% and 33.3% versus 5.9% [bilateral], respectively). Among patients with vertebral basilar artery infarction and posterior cerebral artery P1 segment infarction, patency rate of the anterior communicating artery was higher in patients with diabetes versus those without diabetes (55.7% versus 45.9%). Conclusion Among patients with ischaemic stroke, patency rate of the circle of Willis may be higher in patients with diabetes than those without diabetes.

Endovascular therapy for posterior communicating artery-infundibular dilatation aneurysms

2021 ◽  
Vol 7 (6) ◽  
pp. 6511-6518
Author(s):  
Xinggen Fang ◽  
Degang Wu ◽  
Niansheng Lai ◽  
Jinlong Yuan ◽  
Zhenbao Li ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Endovascular Therapy ◽  
Internal Carotid ◽  
Posterior Cerebral Artery ◽  
Posterior Communicating Artery ◽  
Vertebral Angiography ◽  
Ruptured Aneurysms ◽  
Aneurysm Embolization ◽  
Lost To Follow Up

Objective: The purpose of this study was to explore the effect of endovascular therapy on posterior communicating artery-infundibular dilatation aneurysms. Methods: A total of 15 patients with ruptured aneurysms caused by posterior communicating artery-infundibular dilatation who were treated in our neurosurgical center from January 2015 to December 2018were included in this study. They were performed with bilateral internal carotid angiography and vertebral angiography and treated with endovascular method. The modified Rankin Scale (mRS) was used for clinical follow-up for 18 months. Results: There were 10 patients in the posterior communicating artery-infundibular dilatation aneurysms with non-fetal posterior cerebral artery. Among them, 8 patients were treated with coil-alone embolization. Immediate imaging showed infundibular dilation residual in 6 cases and no contrast filling in either infundibular dilation or aneurysm in 2 case. Another 2 were treated with stent-assisted coiling embolization, and immediate imaging showed no contrast filling. Of the 5 patients in posterior communicating artery-infundibular dilatation aneurysms with fetal posterior cerebral artery, 4 were only coiled in the aneurysm sack with contrast filling in infundibular cones, and 2 were treated with stent assisted coiling. Among the 10 patients with non-fetal posterior cerebral artery, 3 showed recurrence, 4 showed stable images, 2 were also stable with no contrast filling in infundibular dilation or aneurysm and 1 was lost to follow-up. Among the 5 patients with fetal posterior cerebral artery, 1 showed stable images, 3 showed recurrence and 1 was lost to follow-up. Conclusions: For posterior communicating artery-infundibular dilatation aneurysms with non-fetal posterior cerebral artery, stent-assisted coiling of aneurysm embolization combined with occlusion of cones is effective to prevent or reduce recurrence.

Dividing the Posterior Communicating Artery in Approaches to the Interpeduncular Fossa: Technical Aspects and Safety

2007 ◽  
Vol 61 (suppl_5) ◽  
pp. ONSE392-ONSE397 ◽  
Author(s):  
Niklaus Krayenbühl ◽  
Ali F. Krisht
Keyword(s):  
Risk Factors ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Postoperative Bleeding ◽  
Posterior Communicating Artery ◽  
Vascular Risk ◽  
Technical Aspects ◽  
Free Zone ◽  
Neoplastic Lesions ◽  
Ischemic Complications

Abstract Objective: Cutting the posterior communicating artery (PComA) can improve the neurosurgeon's view and maneuverability while performing surgery within the interpedun-cular fossa. Although mentioned in some reports, its technique and safety have not been studied in detail thus far. Methods: Patients undergoing surgery for vascular and neoplastic lesions in the interpeduncular fossa in which the PComA was cut were retrospectively analyzed regarding the location where the PComA was divided, the size of the PComA in relation to the posterior cerebral artery, and the vascular risk factors. Clinical and radiological outcomes and the related complications were recorded and analyzed. Results: The PComA was divided in 25 patients, and was operated on for vascular (in 23 patients) and neoplastic (in 2 patients) lesions. The PComA was divided at a perforator-free-zone. This zone was most commonly located at the junction of the PComA and the posterior cerebral artery (88% of patients). One patient had delayed postoperative bleeding from the divided PComA stump. There were no ischemic complications either in the territory of the PComA perforator or in the posterior cerebral artery. Conclusion: This is the largest reported experience with dividing the PComA. It shows that this surgical step is safe and that it constitutes an important option to help improve the exposure, maneuverability, and safety of surgery in the region of the interpeduncular fossa.

Posterior cerebral artery dissection on a serial magnetic resonance angiography

2012 ◽  
Vol 34 (5) ◽  
pp. 396-399 ◽  
Author(s):  
Toshiki Takenouchi ◽  
Sachiko Shimozato ◽  
Hirokazu Fujiwara ◽  
Suketaka Momoshima ◽  
Takao Takahashi
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Artery Dissection ◽  
Cerebral Artery Dissection

Characteristics of Posterior Cerebral Artery Aneurysms

Neurosurgery ◽  
2014 ◽  
Vol 75 (2) ◽  
pp. 134-144 ◽  
Author(s):  
Felix Goehre ◽  
Behnam Rezai Jahromi ◽  
Juha Hernesniemi ◽  
Ahmed Elsharkawy ◽  
Riku Kivisaari ◽  
...  
Keyword(s):  
Cerebral Artery ◽  
Arteriovenous Malformations ◽  
Posterior Cerebral Artery ◽  
Digital Subtraction ◽  
Angiographic Study ◽  
Unruptured Aneurysms ◽  
Multiple Aneurysms ◽  
Institutional Experience ◽  
Low Incidence ◽  
The Individual

Abstract BACKGROUND: Posterior cerebral artery (PCA) aneurysms are rare lesions. Because of their low incidence, the individual or institutional experience is usually limited. OBJECTIVE: To identify specific anatomic features related to PCA aneurysms based on the analyses of pretreatment angiograms. METHODS: We performed a detailed angiographic study of 81 patients with a diagnosis of 93 PCA aneurysms. Fifty-three patients underwent computed tomography angiography, 49 underwent digital subtraction angiography, and 6 underwent magnetic resonance angiography. Between 1980 and 2012, a total of 120 patients with 136 PCA aneurysms and 11 352 patients with 16 444 intracranial aneurysms were treated at our institutions. RESULTS: There were 29 ruptured and 64 unruptured PCA aneurysms. The distribution of the aneurysms along the PCA segments was P1 (n = 39; 9 ruptured), P1/P2 junction (n = 25; 9 ruptured), P2 (n = 21; 5 ruptured), and P3 (n = 8; 6 ruptured). The median aneurysm size was 7 mm for the ruptured and 4 mm for the unruptured aneurysms. Saccular aneurysms (n = 69, 74%) had a typical projection for each location: P1 segment, upward (67%); P1/P2 junction, anterior/upward (80%); P2 segment, lateral (67%); and P3 segment, posterior (50%). Multiple aneurysms were seen in 43 patients. PCA aneurysms related to arteriovenous malformations were observed in 10 patients. CONCLUSION: PCA aneurysms are infrequent lesions, often associated with multiple aneurysms and arteriovenous malformations and are fusiform in shape. Most ruptured PCA aneurysms are smaller than 10 mm and usually distally located. At each PCA segment, saccular PCA aneurysms have a typical dome orientation.

Magnetic Resonance Angiography of a Posterior Cerebral Artery Occlusion

1991 ◽  
Vol 1 (2) ◽  
pp. 100-102
Author(s):  
Daniel H. Golwyn ◽  
Carlos A. Cardenas ◽  
F. Reed Murtagh ◽  
Stephen M. Sergay
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Artery Occlusion ◽  
Cerebral Artery Occlusion
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