Table of Contents
Perspectives
Review Articles
Practice Perspectives
- Perfusion Scotoma: A Potential Core Underestimation in CT Perfusion in the Delayed Time Window in Patients with Acute Ischemic Stroke
Ghost infarct core has been described to account for overestimating core infarct size in the early time period (<3 hours). The authors describe the phenomenon of underestimating core infarct size on CT perfusion in the later time period (>6 hours), which they have termed perfusion scotoma.
Radiology-Pathology Correlation
General Contents
- Microinfarcts in the Deep Gray Matter on 7T MRI: Risk Factors, MRI Correlates, and Relation to Cognitive Functioning—The SMART-MR Study
Microinfarcts in the deep gray matter on 7T MR imaging were associated with worse cognitive functioning and risk factors and MR imaging markers of small-vessel and large-vessel disease. These findings suggest that microinfarcts in the deep gray matter may represent a novel imaging marker of vascular brain injury.
- Prevalence of Intracranial Aneurysms in Hereditary Hemorrhagic Telangiectasia: Report from a Single Reference Center
Due to the high prevalence of intracranial aneurysms in adult patients with hereditary hemorrhagic telangiectasia, further studies regarding bleeding risks and monitoring should be addressed.
- Brain Abnormalities and Epilepsy in Patients with Parry-Romberg Syndrome
Ipsilateral MR imaging brain abnormalities are common in patients with Parry-Romberg syndrome, with a higher frequency and greater severity in those with epilepsy. The most common findings in both groups are white matter disease and hemispheric atrophy, both presenting with greater severity in patients with epilepsy.
- Nonlesional Sources of Contrast Enhancement on Postgadolinium “Black-Blood” 3D T1-SPACE Images in Patients with Multiple Sclerosis
Small intraparenchymal veins may confound the diagnosis of enhancing lesions on postgadolinium black-blood SPACE images.
- ADC Level is Related to DWI Reversal in Patients Undergoing Mechanical Thrombectomy: A Retrospective Cohort Study
In acute ischemic stroke, the ADC value is independently associated with DWI reversal. Lesions with a mean ADC of ≥ 520 x 10-6 mm2/s are salvageable by mechanical thrombectomy, and DWI reversal areas regain neurologic function. The ADC value is easily assessed and is a useful tool to predict viable lesions.
