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Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
Published on: February 6, 2011
[Infarcts of rostral basilar artery territories clinicoradiological evaluation]
Insights
This study analyzed 34 cases of rostral basilar artery territory infarcts, detailing clinical findings based on affected arteries like the posterior cerebral artery (PCA) and superior cerebellar artery (SCA). MRI proved superior to CT for lesion detection in this critical brain region.
Area of Science:
- Neurology
- Radiology
- Vascular Medicine
Background:
- Infarcts in the rostral basilar artery territory, encompassing the posterior cerebral artery (PCA), basilar artery (BA), and superior cerebellar artery (SCA), present complex clinical scenarios.
- Accurate diagnosis and localization of these infarcts are crucial for effective patient management and treatment strategies.
Purpose of the Study:
- To analyze clinical manifestations of rostral basilar artery territory infarcts based on the affected supplying artery.
- To compare the efficacy of different imaging modalities, specifically CT and MRI, in detecting lesions in this region.
- To discuss the utility of various vascular imaging techniques in identifying the precise site of arterial occlusion.
Main Methods:
- Retrospective analysis of 34 patient cases with confirmed infarcts in the rostral basilar artery territory.
- Correlation of clinical symptoms with infarcts in specific arterial territories: cortical PCA, perforated PCA, and SCA.
- Evaluation of imaging findings from Computed Tomography (CT) and Magnetic Resonance Imaging (MRI).
- Discussion of diagnostic capabilities of digital subtraction angiography (DSA), magnetic resonance angiography (MRA), and transcranial Doppler (TCD) for localizing vascular occlusions.
Main Results:
- Clinical manifestations were categorized into three main groups based on the affected artery: PCA cortical branch (21 cases), PCA perforated branch (22 cases), and SCA (10 cases).
- Combined arterial territory involvement was frequently observed.
- MRI demonstrated superior sensitivity compared to CT in identifying infarcts within the rostral basilar artery territory.
Conclusions:
- Clinical presentation of rostral basilar artery territory infarcts varies depending on the specific arterial supply, with frequent overlap.
- MRI is the preferred imaging modality for detecting infarcts in this brain region due to its higher sensitivity over CT.
- Advanced vascular imaging techniques like DSA, MRA, and TCD are valuable tools for pinpointing the exact location of vascular occlusions.
Abstract:
34 cases with infarcts of rostral basilar territory arteries, including posterior cerebral artery (PCA), rostral basilar artery (BA) and superior cerebellar artery (SCA) confirmed by CT and MRI were reported. The clinical manifestations might be divided into 3 groups according to the supplying artery: the cortical branch of PCA (21 cases), the perforated branch of PCA (22 cases) and the SCA (10 cases). However, combination was often seen. MRI is superior than CT in finding lesions of this region. The use of digital substraction angiograph, magnetic resonance angiography and transcranial Doppler in defining the site of vascular occlusion was discussed.
