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Dual-Energy CT Follow-Up After Stroke Thrombolysis Alters Assessment of Hemorrhagic Complications
Conclusion: Compared to pCT, DECT within 36 h after IV thrombolysis for acute ischemic stroke, changes the radiological diagnosis of post-treatment ICH to “CS only” in a small proportion of patients. Studies are warranted of whether the altered radiological reports have an impact on patient management, for example initiation timing of antithrombotic secondary prevention.
Source: Frontiers in Neurology - May 18, 2020 Category: Neurology Source Type: research

The diagnostic value of quantitative parameters on dual-layer detector-based spectral CT in identifying ischaemic stroke
ConclusionThe study showed the spectral CT would be a potential novel rapid method for identifying AIS. The spectral CT quantitative parameters (Zeff, iodine density values, and iodine–no-water values) can effectively differentiate the ischaemic area from non-ischaemic tissue in stroke patients.
Source: Frontiers in Neurology - February 23, 2023 Category: Neurology Source Type: research

Computed Tomography Angiogram Derived From Computed Tomography Perfusion Done With Low Iodine Volume Protocol Preserves Diagnostic Yield for Middle Cerebral Artery-M2 Occlusions
In this study, we test reliability for identifying M2 occlusions on CTA derived from CTP. Methods: Through a retrospective search of the institutional thrombectomy database, we identified 28 cases with M2-MCA occlusion, of which 24 met the inclusion criteria for analysis.
Source: Journal of Stroke and Cerebrovascular Diseases - October 25, 2019 Category: Neurology Authors: Kaustubh Limaye, Adam Bryant, Girish Bathla, Biyue Dai, Sami Al Kasab, Amir Shaban, Edgar A. Samaniego, David Hasan, Bruno Policeni, Enrique Leira, Colin Derdeyn, Santiago Ortega-Gutierrez Source Type: research

O-027 Contrast density and volume on post-thrombectomy dual-energy head computed tomography predict delayed hemorrhagic transformation
ConclusionMaximum contrast density predicted the occurrence of delayed petechial hemorrhage, while contrast volume predicted the occurrence and volume of delayed parenchymal hematoma. The volume of contrast on DEHCT can serve as a useful predictor of DHT and may have implications for patient management.Abstract O-027 Figure 1Disclosures S. Ahn: None. S. Roth: None. Y. Ko: None. A. Bhamidipati: None. N. Mummareddy: None. R. Chitale: None. M. Fusco: None. M. Froehler: None.
Source: Journal of NeuroInterventional Surgery - July 30, 2023 Category: Neurosurgery Authors: Ahn, S., Roth, S., Ko, Y., Bhamidipati, A., Mummareddy, N., Chitale, R., Fusco, M., Froehler, M. Tags: SNIS 20th annual meeting oral abstracts Source Type: research

Detection of Perfusion Deficits in Multiphase Computed Tomography Angiography—A Stroke Imaging Technique Based on Iodine Mapping on Spectral Computed Tomography: Initial Findings
Conclusions The method can be used to categorize tissue as normal or underperfused. Using iodine quantification seems to give a more distinct differentiation of perfusion defects compared with conventional HU.
Source: Journal of Computer Assisted Tomography - July 1, 2021 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

The Great Contrast Shortage of 2022 —Lessons learnt in Australia
ConclusionOur findings demonstrate that the IBCM shortage crisis had a very significant impact on the delivery of healthcare. While V/Q scans could (partially) substitute for CTPA studies in suspected pulmonary emboli, there appeared to be no valid alternative for CTNA studies in stroke calls. The unexpected and critical shortage of IBCM forced healthcare professionals to conserve resources, prioritise indications, triage patients based on risk, explore alternate imaging strategies and prepare for similar events recurring in the future.
Source: Journal of Medical Imaging and Radiation Oncology - May 18, 2023 Category: Radiology Authors: Giles Kisby, James H Seow, Greg Schie, Constantine C Phatouros, Kay ‐Vin Lam, Tracey Muir, Sally Burrows, Paul M Parizel Tags: Medical Imaging —Original Article Source Type: research