Filtered By:
Procedure: CT Scan

This page shows you your search results in order of date. This is page number 4.

Order by Relevance | Date

Total 6418 results found since Jan 2013.

The diagnosis of intracranial artery stenosis in patients with stroke by transcranial Doppler ultrasound: A meta-analysis
CONCLUSION: Doppler ultrasound has good consistency with conventional methods for the diagnosis of intracranial artery stenosis in patients with a history of stroke. Different reference standards may affect sensitivity and specificity; when CTA was used as the reference standard, the consistency of the TCD in the diagnosis of intracranial artery stenosis in stroke patients was relatively good.PMID:37661896 | DOI:10.3233/THC-220844
Source: Technology and Health Care - September 4, 2023 Category: Medical Devices Authors: Wen-Juan Liu Source Type: research

Natural History and Sequelae of Penetrating Aortic Ulcer
A man in his 70s with history of tobacco use and hypertension presented for transesophageal echocardiography after a recent diagnosis of ischemic stroke. This demonstrated a moderate right-to-left shunt on Valsalva release and no left atrial appendage thrombus. Assessment of the thoracic aorta revealed a complex penetrating aortic ulcer and saccular aneurysm with thrombus in the distal arch and proximal descending thoracic aorta (Figure). Computed tomography angiography confirmed the presence of multiple penetrating ulcerations with large saccular aneurysms.
Source: Mayo Clinic Proceedings - September 1, 2023 Category: Internal Medicine Authors: Raghav R. Julakanti, Prabhakar Shantha Rajiah, Krishnaswamy Chandrasekaran Tags: Medical image Source Type: research

Effect of mechanical thrombectomy with and without intravenous thrombolysis on the functional outcome of patients with different degrees of thrombus perviousness
ConclusionPatients with thrombi of lower perviousness were recommended to undergo intravenous alteplase followed by endovascular thrombectomy, and those with thrombi of higher perviousness could undergo thrombectomy alone.
Source: Neuroradiology - August 29, 2023 Category: Radiology Source Type: research

Extracranial Carotid Plaque Calcification and Cerebrovascular Ischemia: A Systematic Review and Meta-Analysis
CONCLUSIONS: The presence of calcification in carotid plaque confers a reduced association with ipsilateral ischemic events, although these results seem to be limited among carotid arteries with higher degrees of stenosis. Adoption of carotid calcification measures in clinical decision-making will require additional studies providing more reproducible and standardized methods of calcium characterization and testing these imaging strategies in prospective studies.PMID:37638399 | DOI:10.1161/STROKEAHA.123.042807
Source: Atherosclerosis - August 28, 2023 Category: Cardiology Authors: Moayad Homssi Atin Saha Diana Delgado Arindam RoyChoudhury Charlene Thomas Matthew Lin Hediyeh Baradaran Hooman Kamel Ajay Gupta Source Type: research

Comparing 5G mobile stroke unit and emergency medical service in patients acute ischemic stroke eligible for t ‐PA treatment: A prospective, single‐center clinical trial in Ya'an, China
ConclusionsOur findings indicate that 5G MSU care significantly reduces the time from symptom onset to stroke diagnosis and intravenous thrombolysis in patients with AIS, resulting in improved functional outcomes compared to EMS care. As China continues its deployment of 5G technology and other digital infrastructures, the adoption of 5G MSU care on a broader scale may eventually supplant traditional stroke treatment approaches.
Source: Brain and Behavior - August 26, 2023 Category: Neurology Authors: Bo Zheng, Yan Li, Gangfeng Gu, Jian Yang, Junyao Jiang, Zhao Chen, Yang Fan, Sheng Wang, Han Pei, Jian Wang Tags: ORIGINAL ARTICLE Source Type: research

CA-UNet Segmentation Makes a Good Ischemic Stroke Risk Prediction
AbstractStroke is still the World ’s second major factor of death, as well as the third major factor of death and disability. Ischemic stroke is a type of stroke, in which early detection and treatment are the keys to preventing ischemic strokes. However, due to the limitation of privacy protection and labeling difficulties, there are only a few studies on the intelligent automatic diagnosis of stroke or ischemic stroke, and the results are unsatisfactory. Therefore, we collect some data and propose a 3D carotid Computed Tomography Angiography (CTA) image segmentation model called CA-UNet for fully automated extraction o...
Source: Interdisciplinary Sciences, Computational Life Sciences - August 26, 2023 Category: Bioinformatics Source Type: research

Quantitative assessment of collateral time on perfusion computed tomography in acute ischemic stroke patients
ConclusionOur results indicate that perfusion computed tomography can accurately quantify the collateral time after acute ischemic stroke.
Source: Frontiers in Neurology - August 24, 2023 Category: Neurology Source Type: research

Vertebrobasilar Artery Calcification as a Risk Factor for the Development of Stroke: Case-Control Study From a Tertiary Care Center, Southern India
Conclusion The presence of higher grades of calcifications in the vertebrobasilar arteries is a major risk factor for stroke. Hence, its presence in asymptomatic individuals needs to be taken as a warning sign for the development of stroke.PMID:37605701 | PMC:PMC10440145 | DOI:10.7759/cureus.42196
Source: Atherosclerosis - August 22, 2023 Category: Cardiology Authors: Kibballi M Adarsh H Pavithra Valiyapalathingal Abdul Rasheed Source Type: research

O05/57 Validation of a novel multiphase CTA perfusion tool compared to CTP in patients with suspected acute ischemic stroke
Conclusion mCTAp shows similar performance compared to CTP in assisting readers to detect ischemia and its side/location, requiring less radiation exposure, acquisition time and contrast-dose compared to additional-CTP, but mainly as it relates to proximal vessel occlusions.Disclosure of InterestDr. Menon holds patents on systems of triage in acute stroke, for LVO detection and for mCTAp, and stock ownership in Circle Cardiovascular Inc. Dr. Bala has nothing to declare. Dr. Duszynski is an employee of, and holds stock options for Circle Cardiovascular Imaging Inc. Dr. Nayem Pinky, Dr. Golan and Luis A Souto Maior Neto are ...
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Benali, F., Zhang, J., Pinky, N., Bala, F., Alhabli, I., Golan, R., Neto, S., Elebute, I., Duszynski, C., Qiu, W., Menon, B. Tags: 2.2 ISCHEMIC - Imaging Source Type: research

O09/90 Thrombectomy in ischemic stroke patients with large core but minor or absent ischemic changes on non-enhanced computed tomography
ConclusionIn patients with ASPECTS≥6, core volumes did not significantly modify the treatment effect of recanalization. Reperfusion and higher core volume were significantly associated with core overestimation which may explain the treatment effect of MT for patients with large ischemic core but minor ischemic changes on NECT.Abstract O09/90 Figure 1Abstract O09/90 Figure 2Disclosure of InterestNA.
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Broocks, G., Kniep, H., Bechstein, M., Paula Hanning, U. M., Kemmling, A., Fiehler, J., Meyer, L. Tags: 2.3 ISCHEMIC - Treatment Source Type: research

O16/158 Artificial Intelligence based nationwide centralised decision supporting system for improving stroke case efficiency in Hungary
ConclusionUsing AI based centralized stroke imaging network fast and reliable decision support can be provided to a large nationwide stroke care system. The system was installed with the support of an EU grant EFOP 5.2.6.Disclosure of InterestIstvan Szikora has a consulting agreement with Brainomix Ltd.Zoltan Chadaide is a former employee of Brainomix Ltd.Edvard Benes is owner and CEO of eRAD-BBThe system was built by the support of an EU grant EFOP 5.2.6.The other authors have no relevant conflict of interest.
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Szikora, I., Magyar, B., Papai, G., Szudi, G., Kondor, M., Czencz, M., Nardai, S., Chadaide, Z., Benes, E., Ovary, C., Eross, L. Tags: 2.2 ISCHEMIC - Imaging Source Type: research

P005/44 Using the pEGASUS-stent with antithrombogenic properties and single antiplatelet therapy in a case of thrombectomy
IntroductionRescue stenting is used more and more in stroke cases with large-vessel-occlusion or medium-vessel-occlusion refractory to mechanical thrombectomy. The pEGASUS-stent(Phenox) represents a device which is equipped with a hydrophilic polymer coating(HPC) with antithrombogenic properties. The coating allows for implantation under single antiplatelet therapy, thus possibly reducing the risk of bleeding in acute stroke cases.Case HistoryA 79-year-old woman was rushed to emergency room due to left-sided hemiparesis and National-Institutes-of-Health-Stroke-Scale(NIHSS) of 14. Computed-tomography-image showed an occlusi...
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Krug, N., Schulze-Zachau, V., Ntoulias, N., Psychogios, M. Tags: 4.3 CASE PROPOSAL - Acute ischemic stroke Source Type: research

P016/147 Endovascular treatment with kissing stents for critical right subclavian and common carotid artery stenosis
ConclusionSevere stenosis of the innominate artery bifurcation requires a complex treatment approach to preserve the orifices of the adjacent vessels. We have shown that endovascular kissing stenting using balloon-mounted grafts is a feasible treatment strategy in a selected patient population.Disclosure of InterestNothing to disclose
Source: Journal of NeuroInterventional Surgery - August 21, 2023 Category: Neurosurgery Authors: Shilovs, A., Turner, R., Bouslama, M., Siddiqui, A. Tags: 4.5 CASE PROPOSAL - Miscellaneous Source Type: research