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COVID-19 Is an Independent Risk Factor for Acute Ischemic Stroke ADULT BRAIN
CONCLUSIONS: We demonstrated that COVID-19 infection is significantly associated with imaging confirmation of acute ischemic stroke, and patients with COVID-19 should undergo more aggressive monitoring for stroke.
Source: American Journal of Neuroradiology - August 11, 2020 Category: Radiology Authors: Belani, P., Schefflein, J., Kihira, S., Rigney, B., Delman, B. N., Mahmoudi, K., Mocco, J., Majidi, S., Yeckley, J., Aggarwal, A., Lefton, D., Doshi, A. H. Tags: ADULT BRAIN Source Type: research

Characteristics of Large-Vessel Occlusion Associated with COVID-19 and Ischemic Stroke INTERVENTIONAL
SUMMARY: The mechanisms and phenotype of ischemic stroke associated with coronavirus disease 2019 (COVID-19) remain uncertain. A retrospective study was conducted in patients with COVID-19 presenting with ischemic stroke from March 1 to May 25, 2020, and cases with large-vessel occlusion were identified. To provide baseline institutional stroke data within and outside the COVID-19 pandemic, all consecutive ischemic stroke and TIA admissions (COVID and non-COVID) to the hospital during a 10-week period from March 1 to May 10, 2020, were collected and compared with data from the same time period in 2019. Among 20 patients wi...
Source: American Journal of Neuroradiology - December 11, 2020 Category: Radiology Authors: John, S., Kesav, P., Mifsud, V. A., Piechowski-Jozwiak, B., Dibu, J., Bayrlee, A., Elkambergy, H., Roser, F., Elhammady, M. S., Zahra, K., Hussain, S. I. Tags: INTERVENTIONAL Source Type: research

Analysis of Stroke Detection during the COVID-19 Pandemic Using Natural Language Processing of Radiology Reports ADULT BRAIN
CONCLUSIONS: Acute or subacute ischemic stroke cases detected by neuroimaging decreased during the COVID-19 pandemic, though a higher proportion of studies ordered for stroke were positive for acute or subacute ischemic strokes. Natural language processing approaches can help automatically track acute or subacute ischemic stroke numbers for epidemiologic studies, though local classifier training is important due to radiologist reporting style differences.
Source: American Journal of Neuroradiology - March 15, 2021 Category: Radiology Authors: Li, M. D., Lang, M., Deng, F., Chang, K., Buch, K., Rincon, S., Mehan, W. A., Leslie-Mazwi, T. M., Kalpathy-Cramer, J. Tags: ADULT BRAIN Source Type: research

CT perfusion in hyper-acute ischemic stroke: the acid test for COVID-19 fear
ConclusionThe results of CTP analysis provided a better insight in the higher prevalence of major severity stroke patients during the COVID-19 period.
Source: Neuroradiology - February 2, 2021 Category: Radiology Source Type: research

Impact of SARS-CoV-2 Pandemic on "Stroke Code" Imaging Utilization and Yield ADULT BRAIN
CONCLUSIONS: During our pandemic period, there was a significantly decreased number of stroke codes but simultaneous increases in positivity rates, symptom severity, and inpatient codes. We postulate that this finding reflects the documented reluctance of patients to seek medical care during the pandemic, with the shift toward a greater proportion of inpatient stroke codes potentially reflecting the neurologic complications of the virus itself.
Source: American Journal of Neuroradiology - June 10, 2021 Category: Radiology Authors: Shatzkes, D. R., Zlochower, A. B., Steinklein, J. M., Pramanik, B. K., Filippi, C. G., Azhar, S., Wang, J. J., Sanelli, P. C. Tags: ADULT BRAIN Source Type: research

Abstract No. 550 The impact of stay-at-home orders on code stroke activations and mechanical thrombectomy
Stay-at-home orders and additional fears of the COVID-19 pandemic led to a decrease in the presentation of patients with stroke symptoms in emergency departments across some regions in the U.S. but without a similar decline in mechanical thrombectomy (MT) (1). However, a significant decrease of MT cases was observed in other countries such as France (2). It is unknown if the same phenomenon was observed across the entire U.S. The purpose of this study was to review the volumes of code stroke activation, emergent large vessel occlusion (ELVO) activation, and MT cases in a Stroke Belt region during statewide stay-at-home mea...
Source: Journal of Vascular and Interventional Radiology : JVIR - April 28, 2021 Category: Radiology Authors: A. Hines, J. Rhoten, D. Strong, T. Prasad, E. Wang Source Type: research

Neurologic Involvement in COVID-19: Cause or Coincidence? A Neuroimaging Perspective ADULT BRAIN
SUMMARY: The rapid spread of the coronavirus disease 2019 (COVID-19) pandemic has shaken hospitals worldwide. Some authors suggest that neurologic involvement could further complicate the disease. This descriptive study is a cross-sectional review of 103 patients diagnosed with COVID-19 who underwent neuroimaging (of a total of 2249 patients with COVID-19 in our center). Analyzed variables were neurologic symptoms and acute imaging findings. The most frequent symptoms that motivated neuroimaging examinations were mild nonfocal neurologic symptoms, code stroke (refers to patients presenting with signs and symptoms of stroke...
Source: American Journal of Neuroradiology - August 11, 2020 Category: Radiology Authors: Pons-Escoda, A., Naval-Baudin, P., Majos, C., Camins, A., Cardona, P., Cos, M., Calvo, N. Tags: ADULT BRAIN Source Type: research

Predictors of mortality for patients with COVID-19 and large vessel occlusion.
CONCLUSION: Patients with COVID-19 and ELVO had a significantly higher risk for mortality compared to COVID-19 negative patients with ELVO. A small percentage of COVID-19 ELVO patients had good outcomes. Age greater than 60 and pulmonary symptoms at presentation have higher risk for mortality. Other risk factors for mortality were a history of cigarette smoking, elevated, failure to recanalize, elevated d-dimer and ferritin levels. PMID: 32862753 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - September 2, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

The Impact of COVID-19 on Emergent Large-Vessel Occlusion: Delayed Presentation Confirmed by ASPECTS INTERVENTIONAL
CONCLUSIONS: The pandemic led to delays in patients arriving at hospitals, leading to decreased patients eligible for treatment, while in-hospital evaluation and treatment times remain unchanged.
Source: American Journal of Neuroradiology - December 11, 2020 Category: Radiology Authors: Altschul, D. J., Haranhalli, N., Esenwa, C., Unda, S. R., Garza Ramos, R. d. L., Dardick, J., Fernandez-Torres, J., Toma, A., Labovitz, D., Cheng, N., Lee, S. K., Brook, A., Zampolin, R. Tags: INTERVENTIONAL Source Type: research

Spectrum of neuroimaging findings in COVID-19.
Abstract An outbreak of corona virus disease 2019 (COVID-19) began in China in December 2019, and rapidly spread to become a worldwide pandemic. Neurological complications encountered in hospitalized patients include acute arterial ischemic cerebrovascular stroke, cerebral venous thrombosis, critical illness-associated cerebral microbleeds, hypertensive hemorrhagic posterior reversible encephalopathy, meningoencephalitis/flare up of infections, flare up of multiple sclerosis, acute disseminated encephalomyelitis, cerebral hemodynamic/hypoxic changes such as watershed ischemic changes and hypoxic ischemic encephalo...
Source: The British Journal of Radiology - December 13, 2020 Category: Radiology Authors: El Beltagi AH, Vattoth S, Abdelhady M, Ahmed I, Paksoy Y, Abou Kamar M, Alsoub H, Almaslamani M, Alkhal AL, Own A, Elsotouhy A Tags: Br J Radiol Source Type: research

Where have the others gone ? Impact of lockdown during COVID-19 pandemic on patient populations undergoing Computed Tomography imaging in a public tertiary care hospital in India
Conclusion: Our study highlights the impact of the lockdown on medical conditions other than COVID-19 in India, with a substantial decrease in the number of patients undergoing CTs for a variety of conditions.
Source: Indian Journal of Radiology and Imaging - January 23, 2021 Category: Radiology Authors: Ameya Shirish Kawthalkar Shradha Dilip Somani Rucha Prafulla Bhalde Source Type: research

Endovascular Thrombectomy of COVID-19-Related Large Vessel Occlusion: A Systematic Review and Summary of the Literature
ConclusionDespite angiographically successful EVT of LVOs in the majority of patients, this literature analysis demonstrates overall poor outcomes and high mortality in COVID-19 patients post EVT. An unusual incidence of early intracerebral proximal arterial re-occlusion was notable.
Source: Current Radiology Reports - March 8, 2021 Category: Radiology Source Type: research

Through COVID-19 pandemic, CT has shown high diagnostic accuracy
A study that includes a cohort of more than 10,000 patients has found that throughou...Read more on AuntMinnie.comRelated Reading: Rural areas lack access to CT lung cancer screening CT shows that acute kidney injury common among COVID-19 patients CTA spots COVID-19 in stroke patients Chest CT clarifies negative COVID-19 lab results Use D-dimer, CTPA to gauge PE risk in COVID-19 patients
Source: AuntMinnie.com Headlines - June 30, 2021 Category: Radiology Source Type: news

Global research trends in COVID-19 with MRI and PET/CT: a scoping review with bibliometric and network analyses
ConclusionCOVID-19 pandemic is still spreading worldwide, and the knowledge about its different facets continues advancing. MRI and PET/CT are being used in more than 50% of the selected studies; research trends span seven categories, no only the diagnostic but others like socio-economic impact and pathogenesis Developed countries had an advantage by having hospitals with more resources, including MRI and PET/CT facilities in the same institution to supplement basic assessment in patients with COVID-19.
Source: Clinical and Translational Imaging - August 14, 2021 Category: Radiology Source Type: research

Rapid Response to the Acute Iodinated Contrast Shortage During the COVID-19 Pandemic: Single-Institution Experience
Modern health care depends upon the use of radiologic imaging for diagnostic and therapeutic purposes. Iodinated contrast media (ICM) is used in radiology primarily for CT and fluoroscopy-guided procedures. Outside radiology, other services that use ICM include cardiology, vascular surgery, neurology, urology, and gastroenterology. Quaternary care academic medical centers with level I trauma services, comprehensive stroke centers, and ST-segment elevation myocardial infarction services all rely heavily upon a steady supply of ICM to treat patients.
Source: Journal of the American College of Radiology : JACR - May 18, 2022 Category: Radiology Authors: Reed A. Omary, Laveil M. Allen, L. Taylor Davis, Brent Savoie, Katherine Frederick-Dyer, LeAnn Stokes, Sumit Pruthi, Joanna Shechtel, Sarah Allen, Sheryl Redlin Frazier, Cameron Henry Tags: Case Studies in Clinical Practice Management Source Type: research

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