Publications

1. R. Karim, C. Sohns, J. Harrison et. al. Quantitative Magnetic Resonance Imaging Analysis of the Relationship between Contact Force and Left Atrial Scar Formation after Catheter Ablation of Atrial Fibrillation. Journal of Cardiovascular Electrophysiology In Press.Link
2. A. Ataollahi, R. Karim, A. Soleiman-Fallah, K. Rhode, R. Rezavi, et al. 3-DOF MR-Compatible Multi-Segment Cardiac Catheter Steering Mechanism IEEE Transactions on Biomedical Engineering 2013. In Press. PDF
3. L. Malcolme-Lawes, C. Juli, R. Karim, et al. Automated analysis of atrial late gadolinium enhancement imaging correlates with endocardial voltage and clinical outcomes: a two-center study. Heart Rhythm 2013. Link
4. A. Arujuna, R. Karim, et al. Acute Pulmonary Vein Isolation Is Achieved by a Combination of Reversible and Irreversible Atrial Injury Following Catheter Ablation Circulation: Arrhythmia and Electrophysiology. 2012 Link PDF
5. V. Puntmann, A. Pastor, Z. Chen, T. Voigt, R. Karim, et al. Native T1 mapping in differentiation of normal myocardium from diffuse disease in hypertrophic and dilative cardiomyopathy. In JACC: Cardiovascular Imaging 2013. Link
6. R. Karim et al. Infarct Segmentation Challenge on Delayed Enhancement MRI of the Left Ventricle. In Lecture Notes in Computer Science 2012. Link
7. R. Karim et al. Infarct Segmentation Challenge on Delayed Enhancement MRI of the Left Ventricle. In Lecture Notes in Computer Science, Vol. 7746. 2012. Link
8. M. Rault, R. Karim et al. Motion correction using hierarchical local affine registration improves image quality and myocardial scar characterisation from T1 maps acquired with MOLLI In Soceity of Cardiovascular Magnetic Resonance (SCMR) meeting 2013. Link
9. Z. Chen, R. Karim et al. Simultaneous Non-Contact Mapping Fused with CMR Derived Grey Zone to Explore the Relationship with Ventricular Tachycardia Substrate in Ischaemic CardiomyopathyTo appear in Soceity of Cardiovascular Magnetic Resonance (SCMR) meeting 2013. Link coming soon.
10. C. Sohns R. Karim, et al. Quantitative Magnetic Resonance Imaging Analysis of the Relationship between Contact Force and Left Atrial Scar Formation after Catheter Ablation of Atrial Fibrillation In Late-breaking clinical trials at HRS 2013. PDF
11. Y. Ma, R. Karim, et al. Cardiac Unfold: A Novel Technique for Image-Guided Cardiac Catheterization Procedures. Lecture Notes in Computer Science, 2012, Volume 7330/2012 Link
12. J. Housden, Y. Ma, R. Karim, et al. Clinical Applications of Image Fusion for Electrophysiology Procedures. International Symposium on Biomedical Imaging (ISBI) 2012. Link
13. J. Harrison, N. Linton, R. Karim, et al. Late Gadolinium Enhancement Magnetic Resonance Imaging Prediction Of Gaps In Atrial Ablation Lesions. Heart Rhythm Society conference 2012. Link
14. J. Harrison, N. Linton, R. Karim, et al. Late Gadolinium Enhancement Magnetic Resonance Imaging Prediction Of Gaps In Atrial Ablation Lesions. Heart Rhythm Society conference 2012. Link
15. A. Arujuna, S. Peel, R. Karim, et al. Novel Dual Inversion Recovery Pre-pulse Imaging Technique Improves Post Ablation Cardiac MR Scar Visualization. Heart Rhythm Society conference 2012. Link
16. L. Lawes, C. Juli, R. Karim, et al. Automated Analysis Of Atrial Delayed-enhancement Cardiac MRI Correlates With Endocardial VoltageHeart suppl. vol. 98, A30-A31. Link
17. J. Harrison, N. Linton, A.K. Grondal, L.O. Bloch, S. Fjord, J. Bentzon, A. Chirbiri, C. Kolbitsch, R. Karim, et al. Acute Atrial Ablation Injury Is Better Visualised By Late Gadolinium Enhancement Than T2-weighted Magnetic Resonance Imaging. Heart Rhythm Society conference 2012. Link
18. R. Karim, A. Arujuna, A. Brazier, M. O'Neil, J. Gill, R. Razavi, D. Rueckert, T. Schaeffter, K. Rhode.Validation of a Novel Method for the Automatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance Lecture notes in Computer Science (LNCS) 2012, Vol. 7085, pp 254-262. Link
19. R. Karim, A. Arujuna, A. Brazier, M. O'Neil, J. Gill, R. Razavi, D. Rueckert, T. Schaeffter, K. Rhode. Evaluation of a Rapid Quantification Algorithm for Delayed Enhancement MRI following Left Atrial Ablation. Heart Rhythm 2011. Link
20. R. Karim, G. Gao, J. Harrison, A. Arujuna, H. Lambert, G. Leo, J. Gill, R. Razavi, T. Schaeffter, K. Rhode Magnetic Resonance Imaging Analysis of Tissue-contact Force Following Catheter Ablation for Paroxysmal Atrial Fibrillation. Heart Rhythm Society 2011. PDF
21. R. Karim, A. Arujuna, A. Brazier, M. O'Neil, J. Gill, R. Razavi, D. Rueckert, T. Schaeffter, K. Rhode. Automatic Segmentation of Left Atrial Scar from Delayed-Enhancement Magnetic Resonance Imaging. Funcational Imaging and Modelling of the Heart. Lecture Notes in Computer Science, 2011, Volume 6666, pp. 63-70. Link
22. R. Karim, G. Gao, J. Harrison, A. Arujuna, H. Lambert, G. Leo, J. Gill, R. Razavi, T. Schaeffter, K. Rhode. Mapping Contact Force during Catheter Ablation for the Treatment of Atrial Fibrillation: New Insights into Ablation Therapy. Functional Imaging and Modeling of the Heart (FIMH), Volume 6666, 2011. Link
23. R. Karim, A. Arujuna, M. O'Neil, J. Gill, R. Razavi, D. Rueckert, T. Schaeffter, K. Rhode. An automatic segmentation algorithm for improved visualization of atrial ablation lesions using magnetic resonance imaging. Soceity of Cardiovascular Magnetic Resonanc (SCMR) meeting 2011 Link, PDF, BibTeX
24. L. Lawes R. Karim and et al. Automated analysis of post-ablation atrial enhancement using delayed-enhanced Cardiac Magnetic Resonance Imaging. Heart 2011 Jun; 97(Suppl 1): 1-97. Link
25. A. Arujuna, R. Karim and et al.Interstitial oedema, delayed enhancement and recurrences following catheter ablation in paroxysmal AF: how are they related? Heart Rhythm 2011 meeting as oral. Link
26. A. Arujuna, R. Karim and et al.Assessment of left atrial injury by cardiac MR: a randomised prospective comparison of robotic versus manual AF ablation.Accepted to Heart Rhythm 2011 meeting as oral.
27. A. Arujuna, D. Caulfield, R. Karim and et al. Acute pulmonary vein isolation lesions consist of interstitial oedema and tissue necrosis: possible mechanism of pulmonary vein reconnection. Soceity of Cardiovascular Magnetic Resonance (SCMR) 2011 Link, PDF, BibTeX
28. R. Karim, G. Gao, J. Harrison, A. Arujuna, J. Gill, R. Razavi, T. Schaeffter, K. Rhode, M. O'Neill. A novel technique to display tissue contact force in the left atrium following catheter ablation for paroxysmal atrial fibrillation using a force sensing ablation catheter. Abstract only. European Cardiac Arrhythmia Society 2011.
29. A. Arujuna, R. Karim, M. O'Neil, A. Rinaldi, K. Rhode, T. Schaeffter, J. Gill, R. Razavi. Novel pilot data - Cardiac MR Imaging Post Catheter Ablation: Does T2 and DE ratios matter in predicting clinical outcome? Proceedings of International Society for Magnetic Resonance in Medicine (ISMRM) Vol. 19, 2011. PDF
30. L. Lawes, R. Karim, C. Juli, P. Lim, T. Salukhe, DW Davies, D. Rueckert, P. Kanagaratnam, NS Peters Correlation of left-atrial endocardial voltage with ablation-scar detected with DE-MRI.. Abstract only. Accepted to ECAS 2011.
31. L. Lawes, R. Karim, DW Davies, P. Kanagaratnam, PB Lim, NS Peters, C. Juli Left atrial function correlates with post-ablation scar detected by DE-MRI. Abstract only. Accepted to ECAS 2011.
32. L. Lawes, R. Karim and et al. Automated analysis of atrial ablation scar using delayed enhanced cardiac magnetic resonance imaging. Abstract in the British Cardiovascular Society Annual Conference, 2011 Link
33. R. Karim, C.Juli, LM.Lawes, P.Kanangaratnam, DW Davies, NS Peters, D. Rueckert Automatic Segmentation of Left Atrial Geometry from Contrast-Enhanced Magnetic Resonance Images using a Probabilistic Atlas. MICCAI STACOM 2010 workshop, Appears in Lecture notes in computer science, 2010 (6364) pp. 134-143. PDF, Link, BibTex
34. R. Pease, R. Karim, L. Malcolme-Lawes, P. Kanagaratnam, W. Davies, D. Rueckert, N. Peters, C.F. Juli Applicability of pre segmentation of MRA data to generate 3-dimensional anatomical models of the left atrium and pulmonary veins for planning and facilitation of image guided ablation procedures. Abstract only. European Society of Cardiac Radiology 2010. Link
35. R. Karim, R. Mohiaddin, P. Drivas, D. Rueckert. Automatic extraction of the left atrial anatomy from MR for atrial fibrillation ablation . IEEE International Symposium on Biomedical Imaging 2009. Link, PDF, BibTeX
36. R. Karim, R. Mohiaddin, D. Rueckert. Left atrium pulmonary veins: segmentation and quantification for planning atrial fibrillation ablaton. SPIE Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling. Link, PDF, BibTeX

37. R. Karim, R. Mohiaddin, D. Rueckert. Left Atrium Segmentation for Atrial Fibrillation Ablation. SPIE Medical Imaging 2008: Visualization, Image-guided Procedures, and Modeling. Link, PDF, BibTeX

38. R. Karim, R. Mohiaddin, D. Rueckert. Automatic Segmentation of the Left Atrium. Published in the proceedings of the Medical Image Understanding and Analysis Conference, Abersytwyth, Wales, 2007. PDF
39. R. Karim, P. Drivas, N.S. Peters, R. Mohiaddin, D. Rueckert. FLAP: A framework for computing patient-specific left atrium parameters. Submitted

Thesis

• Segmentation of the Left Atrium and Pulmonary Veins from Contrast-Enhanced MR Images. PhD Thesis, Imperial College London, 2009. Download PDF