2023年7月28日 · The posterior communicating artery (PCom) makes up the posterior linkage in the circle of Willis.

2024年6月20日 · A fetal (origin of the) posterior cerebral artery (fetal PCA), sometimes also referred to less accurately as fetal (origin of the) posterior communicating artery (fetal PCom), is a common variant in the posterior cerebral circulation. Fetal PCAs occur in …

A left sided PCOM aneurysm is seen. Bilateral fetal PCOM can be seen also. otherwise the anatomy of circle of Willis is conventional. No evidence of subarachnoid bleeding (on FLAIR). No other lesion can be seen.

We performed magnetic resonance imaging (MRI) with and without contrast material and magnetic resonance angiography (MRA) of the circle of Willis in 16 patients with SD and 48 controls subjects matched for age and sex in order to determine the possible correlation between the absence of Pcom and SD.

To test the hypothesis that different configurations of the ICA and PCOM arteries in relation to the location of the aneurysm can have important effects on intra-aneurysmal hemodynamics and, consequently, on aneurysm rupture, all PCOM aneurysms were classified into a set of angioarchitecture types presented in Fig 2.

Isolated third nerve palsy can be the sentinel sign of an aneurysm at the junction of the internal carotid artery and posterior communicating artery (PCom A), and evaluation of isolated third nerve palsies remains one of the most challenging situations in neuro-ophthalmology. 1 – 9 Expert interpretation of modern noninvasive neuroimaging such ...

2024年11月11日 · The posterior communicating artery (PCOM) is a small artery in the brain that connects the internal carotid and the posterior cerebral arteries. Its main purpose is to provide an alternative blood supply route to the brain in instances where the internal carotid or posterior cerebral arteries are blocked.

2024年11月1日 · In this single-surgeon retrospective review, we analyzed 154 patients with 179 Pcom-Ops that are not clearly infundibular. We aimed to identify the rate of rupture and create an easily defined radiographic characteristic that could predict the likelihood of rupture, which could aid in guiding follow-up studies.

2023年10月30日 · PCom aneurysm, a condition affecting a blood vessel in the brain, is a serious medical concern. In this article, we will discuss the symptoms, treatment options, and the crucial r

2021年9月30日 · Phase-contrast MRI (2D PCMRI) can be used to quantitatively measure intraarterial blood flow, although it is hampered by the need to scan each measurement plane separately. Thus, it is time consuming and may not be suitable for clinical routine in the context of a comprehensive vascular workup.