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Specialty: Radiology
Procedure: Angiography

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Total 939 results found since Jan 2013.

Regional Mechanical Thrombectomy Imaging Protocol in Patients Presenting with Acute Ischemic Stroke during the COVID-19 Pandemic INTERVENTIONAL
CONCLUSIONS: Chest CT provides a pragmatic, rapid additional tool for COVID-19 risk stratification among patients referred for mechanical thrombectomy. Its inclusion in a standardized regional stroke imaging protocol has enabled efficient use of hospital resources with minimal compromise or delay to the overall patient treatment schedule.
Source: American Journal of Neuroradiology - October 5, 2020 Category: Radiology Authors: Dhillon, P. S., Pointon, K., Lenthall, R., Nair, S., Subramanian, G., McConachie, N., Izzath, W. Tags: INTERVENTIONAL Source Type: research

CTA spots COVID-19 in stroke patients
Scanning acute ischemic stroke patients with CT angiography (CTA) helps determine...Read more on AuntMinnie.comRelated Reading: Algorithm detects LVO stroke on multiphase CTA CTA effective for detecting arterial bleeding Dual-energy CT, CTA reveal COVID-19 lung patterns How helpful is CTA for assessing coronary disease risk? COVID-19 neuro findings marked by mental status, stroke
Source: AuntMinnie.com Headlines - October 29, 2020 Category: Radiology Source Type: news

Multiclass machine learning vs. conventional calculators for stroke/CVD risk assessment using carotid plaque predictors with coronary angiography scores as gold standard: a 500 participants study
AbstractMachine learning (ML)-based algorithms for cardiovascular disease (CVD) risk assessment have shown promise in clinical decisions. However, they usually predict binary events using only conventional risk factors. Our overall goal was to develop the “multiclass machine learning (MCML)-based algorithms” (labelled as AtheroEdge 3.0ML) and assess whether considering carotid ultrasound imaging fused with conventional risk factors can provide better CVD/stroke risk prediction than conventional CVD risk calculators (CCVRC). Carotid ultrasound and coronary angiography were performed on 500 participants. Stenosis in the ...
Source: The International Journal of Cardiovascular Imaging - November 12, 2020 Category: Radiology Source Type: research

Angiographic early hyperemia in the middle cerebral artery territory after thrombectomy is associated with favorable clinical outcome in anterior circulation stroke
ConclusionResults revealed that the presence of EH is associated with better clinical outcome at 90 days, but not associated with increased hemorrhagic complication. These findings with clinically relevant implications require further validation.Key Points•Angiographic cortical hyperemia is a common finding immediately after endovascular thrombectomy.•Presence of cortical hyperemia is an independent prognostic factor for good clinical outcome.•Hemorrhagic complication is not associated with cortical hyperemia.
Source: European Radiology - January 5, 2021 Category: Radiology Source Type: research

Quantification of pial collateral pressure in acute large vessel occlusion stroke: basic concept with patient outcomes
ConclusionQPCP measurements related best with the pretreatment CTA Maas collateral grading scale but were more strongly associated with patient outcomes than any of the four widely accepted collateral grading scales. Greater QPCP was significantly associated with better overall patient outcomes as defined by mRS at 30 days.
Source: Neuroradiology - January 28, 2021 Category: Radiology Source Type: research

Collateral and permeability imaging derived from dynamic contrast material-enhanced MR angiography in prediction of PH 2 hemorrhagic transformation after acute ischemic stroke: a pilot study
ConclusionIndividual-based prediction of PH 2 hemorrhagic transformation in patients with acute ischemic stroke may be possible with multiphase collateral map and permeability imaging derived from dynamic contrast material-enhanced magnetic resonance angiography.
Source: Neuroradiology - February 3, 2021 Category: Radiology Source Type: research

Use AI with CT to better assess stroke patients' collateral flow
Researchers have developed an artificial intelligence (AI) algorithm that ca...Read more on AuntMinnie.comRelated Reading: Mobile stroke units with onboard CT deliver best early care Mobile interventional stroke unit improves patient 90-day outcomes LVO stroke patients benefit from going directly to angiography suite 'Redundant imaging' for TIA workup increases in the ED Up to 40% of COVID-19 survivors experience neurological effects
Source: AuntMinnie.com Headlines - September 13, 2021 Category: Radiology Source Type: news

Time-resolved assessment of cortical venous drainage on multiphase CT angiography in patients with acute ischemic stroke
ConclusionThis study concludes that venous opacification over time on multiphase CTA is associated with 90-day clinical outcome. There was however no added benefit of venous scoring vis-a-vis arterial collateral assessment in predicting outcome.
Source: Neuroradiology - April 12, 2022 Category: Radiology Source Type: research

Increased Versus Appropriate Neuroimaging Utilization in Stroke: A Complex Matter
We read with great interest the study by Wang et  al [1], in which they reported updated trends, sociodemographic disparities, and the impact of stroke neuroimaging on mortality across the United States from 2012 to 2019. They found a significantly increased utilization for CT angiography (250%), CTP (428%), and MRI (18%) as a well as a decreasin g rate for MR angiography use (−33%) in stroke patients. The way that the authors present consistent and extensive data on disparities across specific demographic groups (ie, rural patients, ≥80 years, female and black patients) has a significant value in designing effective ...
Source: Journal of the American College of Radiology : JACR - July 31, 2022 Category: Radiology Authors: Ángela Guarnizo, Javier Romero, Sonia Bermúdez Tags: Letters to the Editor Source Type: research

Response to “Copyediting to add final Citation Granja et al letter, Increased vs appropriate neuroimaging utilization in stroke: a complex matter.”
We thank the authors for their comments [1] and for raising several important issues about our article on the updated trends, sociodemographic disparities, and impact of stroke neuroimaging on mortality across the United States from 2012 to 2019 [2]. Their letter reminds readers about our findings of significantly increased utilization of CT angiography (250%), CTP (428%), and MRI (18%) as well as decreased use of MR angiography ( −33%) in stroke patients. Furthermore, our consistent and extensive data on disparities across specific demographic groups (ie, rural patients, patients ≥80 years, female patients, and Black ...
Source: Journal of the American College of Radiology : JACR - August 21, 2022 Category: Radiology Authors: Jason J. Wang, Casey E. Pelzl, Artem Boltyenkov, Jeffrey M. Katz, Jennifer Hemingway, Eric W. Christensen, Elizabeth Rula, Pina C. Sanelli Tags: Letters to the Editor Source Type: research

Response to Granja et  al Letter, “Increased Versus Appropriate Neuroimaging Utilization in Stroke: A Complex Matter.”
We thank the authors for their comments [1] and for raising several important issues about our article on the updated trends, sociodemographic disparities, and impact of stroke neuroimaging on mortality across the United States from 2012 to 2019 [2]. Their letter reminds readers about our findings of significantly increased utilization of CT angiography (250%), CT perfusion (428%), and MRI (18%) as well as decreased use of MR angiography ( −33%) in stroke patients. Furthermore, our consistent and extensive data on disparities across specific demographic groups (ie, rural patients, patients ≥80 years, female patients, a...
Source: Journal of the American College of Radiology : JACR - August 21, 2022 Category: Radiology Authors: Jason J. Wang, Casey E. Pelzl, Artem Boltyenkov, Jeffrey M. Katz, Jennifer Hemingway, Eric W. Christensen, Elizabeth Rula, Pina C. Sanelli Tags: Letter to the Editor Source Type: research

Multisociety Consensus Quality Improvement Guidelines for Intraarterial Catheter-directed Treatment of Acute Ischemic Stroke, from the American Society of Neuroradiology, Canadian Interventional Radiology Association, Cardiovascular and Interventional Radiological Society of Europe, Society for Cardiovascular Angiography and Interventions, Society of Interventional Radiology, Society of NeuroInterventional Surgery, European Society of Minimally Invasive Neurological Therapy, and Society of Vascular and Interventional Neurology
Conclusions: Quality improvement guidelines are provided for endovascular acute ischemic stroke revascularization procedures.
Source: Journal of Vascular and Interventional Radiology : JVIR - January 30, 2013 Category: Radiology Authors: David Sacks, Carl M. Black, Christophe Cognard, John J. Connors, Donald Frei, Rishi Gupta, Tudor G. Jovin, Bryan Kluck, Philip M. Meyers, Kieran J. Murphy, Stephen Ramee, Daniel A. Rüfenacht, M.J. Bernadette Stallmeyer, Dierk Vorwerk Source Type: research

Reperfusion Is a Stronger Predictor of Good Clinical Outcome than Recanalization in Ischemic Stroke Neuroradiology
Conclusion: Reperfusion showed stronger association with good clinical outcome than did recanalization. © RSNA, 2013
Source: Radiology - September 23, 2013 Category: Radiology Authors: Eilaghi, A., Brooks, J., d'Esterre, C., Zhang, L., Swartz, R. H., Lee, T.-Y., Aviv, R. I. Tags: Neuroradiology Source Type: research

Pretreatment Advanced Imaging in Patients with Stroke Treated with IV Thrombolysis: Evaluation of a Multihospital Data Base BRAIN
CONCLUSIONS: Use of advanced imaging is increasing in patients treated with IV thrombolysis. While there were differences in outcomes among imaging groups, the clinical effect of advanced imaging remains unclear.
Source: American Journal of Neuroradiology - March 13, 2014 Category: Radiology Authors: McDonald, J. S., Fan, J., Kallmes, D. F., Cloft, H. J. Tags: BRAIN Source Type: research

Perfusion-Based Selection for Endovascular Reperfusion Therapy in Anterior Circulation Acute Ischemic Stroke EDITOR'S CHOICE
CONCLUSIONS: In this multicenter study, patients with acute ischemic stroke who underwent perfusion imaging were more than 2-fold more likely to have good outcomes following endovascular reperfusion therapy. Randomized studies should compare perfusion imaging with NCCT imaging for patient selection for endovascular reperfusion therapy.
Source: American Journal of Neuroradiology - July 15, 2014 Category: Radiology Authors: Prabhakaran, S., Soltanolkotabi, M., Honarmand, A. R., Bernstein, R. A., Lee, V. H., Conners, J. J., Dehkordi-Vakil, F., Shaibani, A., Hurley, M. C., Ansari, S. A. Tags: EDITOR ' S CHOICE Source Type: research