Publications of Ahmed Khalil

Journal Article (16)

2021
Journal Article
Hu, J. Y., Kirilina, E., Nierhaus, T., Ovadia‐Caro, S., Livne, M., Villringer, K., … Khalil, A. (2021). A novel approach for assessing hypoperfusion in stroke using spatial independent component analysis of resting‐state fMRI. Human Brain Mapping. doi:10.1002/hbm.25610
Journal Article
Aydin, O. U., Taha, A. A., Hilbert, A., Khalil, A., Galinovic, I., Fiebach, J. B., … Madai, V. I. (2021). An evaluation of performance measures for arterial brain vessel segmentation. BMC Medical Imaging, 21. doi:10.1186/s12880-021-00644-x
Journal Article
Khalil, A., Röhrs, K., Nolte, C. H., & Galinovic, I. (2021). Total perfusion-diffusion mismatch detected using resting-state functional MRI. BJR Case Reports, 7. doi:10.1259/bjrcr.20210056
Journal Article
Kufner, A., Khalil, A., Galinovic, I., Kellner, E., Mekle, R., Rackoll, T., … Nave, A. H. (2021). Magnetic resonance imaging-based changes in vascular morphology and cerebral perfusion in subacute ischemic stroke. Journal of Cerebral Blood Flow and Metabolism. doi:10.1177/0271678X211010071
Journal Article
Kossen, T., Subramaniam, P., Madai, V. I., Hennemuth, A., Hildebrand, K., Hilbert, A., … Frey, D. (2021). Synthesizing anonymized and labeled TOF-MRA patches for brain vessel segmentation using generative adversarial networks. Computers in Biology and Medicine, 131. doi:10.1016/j.compbiomed.2021.104254
Journal Article
Aydin, O. U., Taha, A. A., Hilbert, A., Khalil, A., Galinovic, I., Fiebach, J. B., … Madai, V. I. (2021). On the usage of average Hausdorff distance for segmentation performance assessment: Hidden error when used for ranking. European Radiology Experimental, 5. doi:10.1186/s41747-020-00200-2
2020
Journal Article
Tanrıtanır, A. C., Villringer, K., Galinovic, I., Grittner, U., Kirilina, E., Fiebach, J. B., … Khalil, A. (2020). The effect of scan length on the assessment of BOLD delay in ischemic stroke. Frontiers in Neurology, 11. doi:10.3389/fneur.2020.00381
Journal Article
Fan, A. P., Khalil, A., Fiebach, J. B., Zaharchuk, G., Villringer, A., Villringer, K., & Gauthier, C. J. (2020). Elevated brain oxygen extraction fraction measured by MRI susceptibility relates to perfusion status in acute ischemic stroke. Journal of Cerebral Blood Flow and Metabolism, 40, 539–551 .
Journal Article
Khalil, A., Villringer, K., Filleböck, V., Hu, J.-Y., Rocco, A., Fiebach, J. B., & Villringer, A. (2020). Non-invasive monitoring of longitudinal changes in cerebral hemodynamics in acute ischemic stroke using BOLD signal delay. Journal of Cerebral Blood Flow and Metabolism, 40, 23–34.
2019
Journal Article
Villringer, K., Zimny, S., Galinovic, I., Nolte, C. H., Fiebach, J. B., & Khalil, A. (2019). The association between recanalization, collateral flow, and reperfusion in acute stroke patients: A dynamic susceptibility contrast MRI study. Frontiers in Neurology, 10. doi:10.3389/fneur.2019.01147
Journal Article
Castillo, X., Castro-Obregón, S., Gutiérrez-Becker, B., Gutiérrez-Ospina, G., Karalis, N., Khalil, A., … Zille, M. (2019). Re-thinking the etiological framework of neurodegeneration. Frontiers in Neuroscience, 13. doi:10.3389/fnins.2019.00728
Journal Article
Bayrak, S., Khalil, A., Villringer, K., Fiebach, J., Villringer, A., Margulies, D. S., & Ovadia-Caro, S. (2019). The impact of ischemic stroke on connectivity gradients. NeuroImage: Clinical, 24. doi:10.1016/j.nicl.2019.101947
Journal Article
Ovadia-Caro, S., Khalil, A., Sehm, B., Villringer, A., Nikulin, V. V., & Nazarova, M. (2019). Predicting the response to non-invasive brain stimulation in stroke. Frontiers in Neurology, 10. doi:10.3389/fneur.2019.00302
Journal Article
Khalil, A., Mueller, S., Foddis, M., Mosch, L., Lips, J., Przesdzing, I., … Boehm-Sturm, P. (2019). Longitudinal 19F magnetic resonance imaging of brain oxygenation in a mouse model of vascular cognitive impairment using a cryogenic radiofrequency coil. Magnetic Resonance Materials in Physics, Biology and Medicine, 32, 105–144.
2018
Journal Article
Galinovic, I., Kochova, E., Khalil, A., Villringer, K., Piper, S. K., & Fiebach, J. B. (2018). The ratio between cerebral blood flow and Tmax predicts the quality of collaterals in acute ischemic stroke. PLoS One, 13. doi:10.1371/journal.pone.0190811
2017
Journal Article
Khalil, A., Ostwaldt, A.-C., Nierhaus, T., Ganeshan, R., Audebert , H. J., Villringer, K., … Fiebach, J. B. (2017). Relationship between changes in the temporal dynamics of the blood-oxygen-level-dependent signal and hypoperfusion in acute ischemic stroke. Stroke, 48, 925–931.

Meeting Abstract (2)

2017
Meeting Abstract
Khalil, A., Kirilina, E., Villringer, K., Fiebach, J., & Villringer, A. (2017). Perfusion maps based on temporal blood-oxygen-level-dependent signal delays are driven by alterations in lowfrequency oscillations between 0.01 and 0.1 Hz. In Journal of Cerebral Blood Flow and Metabolism (Vol. 37, pp. 169–169). New York: Lippincott Williams & Wilkins.
Meeting Abstract
Khalil, A., Mueller, S., Foddis, M., Dirnagl, U., Fiebach, J., Villringer, A., & Boehm-Sturm, P. (2017). Perfusion-related changes in the temporal dynamics of the blood-oxygen-level-dependent signal in a mouse model of focal cerebral ischemia. In Journal of Cerebral Blood Flow and Metabolism (Vol. 37, pp. 289–289). New York: Lippincott Williams & Wilkins.

Poster (1)

2018
Poster
Bayrak, S., Khalil, A., Villringer, K., Fiebach, J., Villringer, A., Margulies, D. S., & Ovadia-Caro, S. Mapping the effects of stroke lesions on gradients of resting-state functional connectivity. Poster presented at the 24th Annual Meeting of the Organization of Human Brain Mapping, Singapore. Retrieved from http://hdl.handle.net/21.11116/0000-0002-B911-A
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