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Large-scale, multi-centre, multi-disease validation of an AI clinical tool for cine CMR analysis [article]

Jorge Mariscal-Harana
2022 arXiv   pre-print
METHODS: Our proposed framework consists of an AI-based algorithm for biventricular segmentation of short-axis images, followed by a post-analysis quality control to detect erroneous results.  ...  RESULTS: Our method yielded median Dice scores over 87%, translating into median absolute errors in cardiac biomarkers within the range of inter-observer variability: <8.4mL (left ventricle), <9.2mL (right  ...  We engineered a pipeline which can handle data from different sources, and which includes automated detection and selection of short-axis cine images from CMR scans 10 and conversion of images and segmentations  ... 
arXiv:2206.08137v1 fatcat:q2ri4rwdmnbwpgajzyedhvsvsa

Left ventricular blood flow kinetic energy is associated with the six-minute walk test and left ventricular remodelling post valvular intervention in aortic stenosis

Alaa Elhawaz, Gareth T. Archer, Hamza Zafar, Benjamin Fidock, Natasha Barker, Rachel Jones, Alexander Rothman, Rod Hose, Abdallah Al-Mohammad, Norman Briffa, Steven Hunter, Peter Braidley (+7 others)
2021 Quantitative Imaging in Medicine and Surgery  
For LV blood flow KE assessment, the metrics including time delay (TD) for peak E-wave from base to mid-ventricle (14±48 vs. 2.5±9.75 ms, P=0.04), direct (4.91±5.07 vs. 1.86±1.72 µJ, P=0.01) and delayed  ...  The main objective of this study is to investigate the LV KE in patients with AS before and after the valve intervention.  ...  Acknowledgments We thank the staff of the MRI unit at the University of Sheffield in facilitating all the CMR scans.  ... 
doi:10.21037/qims-20-586 pmid:33816183 pmcid:PMC7930677 fatcat:momidypvljac3gbftu5v4phcr4

Abstracts

2016 European Heart Journal-Cardiovascular Imaging  
1588 Insights into hypertensive heart disease phenotypes: spectrum of myocyte, interstitial and vascular changes by cardiovascular MRI  ...  Diastolic function by CMR was obtained with left ventricle (LV) automatic segmentation of routine cine CMR images by tracing endocardial and epicardial borders of LV in short axis views.  ...  Short axis cine-SSFP images covering the entire left atrium and the left ventricle were acquired and to obtain left atrium (LA) and left ventricle (LV) volumes in all cardiac phases, obtaining V/time curves  ... 
doi:10.1093/ehjci/jew093 fatcat:wdi2cchdanc3zpqvxhsr666tvu

MODERATED EPOSTERS1385Longitudinal strain assessment in dilated cardiomyopathy patients using a novel accelerated DENSE sequence1407Simultaneous T1 and T2 cardiac quantification with CABIRIA: initial clinical experience1423Head-to-head comparison of acceleration algorithms in 4-dimensional flow CMR1502Left ventricular function and size evaluated by hybrid cardiac positron emission tomography-magnetic resonance: Intraindividual comparison of left ventricular ejection fraction and ventricular volumes derived ...

Upasana Tayal, Alexandros Kallifatidis, P. Garg, D. Beitzke, Stephanie Funk, Shimon Kolker, Tobias Rutz, Komal S Safdar, F. Valente, R. Murdoch, F. Macaione, Amardeep Ghosh Dastidar (+279 others)
2016 European Heart Journal-Cardiovascular Imaging  
Pre-and post-Gadolinium (GD) injection short-axis T1 maps were acquired within single-breathholds. The myocardial T1 mapping values (ms) were drawn from AHA 16 regions of the left ventricle.  ...  MR data were calculated from short axis cine images in the endiastolic and endsystolic phase during breath hold.  ... 
doi:10.1093/ehjci/jew182 fatcat:afdxmhwmtzbenk4fmgxth33aum

Advanced flow MRI: emerging techniques and applications

M. Markl, S. Schnell, C. Wu, E. Bollache, K. Jarvis, A.J. Barker, J.D. Robinson, C.K. Rigsby
2016 Clinical Radiology  
contrast MRI, four-dimensional (4D) flow MRI, quantification of complex haemodynamic properties, and highly accelerated flow imaging.  ...  Magnetic resonance imaging (MRI) techniques provide non-invasive and non-ionising methods for the highly accurate anatomical depiction of the heart and vessels throughout the cardiac cycle.  ...  ACKNOWLEDGEMENTS Grant support was received from the NIH NHLBI grants R01HL115828 and K25HL119608, and American Heart Association fellowships 14PRE18620016 and 14PRE18370014. Markl et al.  ... 
doi:10.1016/j.crad.2016.01.011 pmid:26944696 pmcid:PMC4930408 fatcat:uj2am6anmzbw3b5gqehsepapqy

Additional value and new insights by four-dimensional flow magnetic resonance imaging in congenital heart disease: application in neonates and young children

Julia Geiger, Fraser M Callaghan, Barbara E U Burkhardt, Emanuela R Valsangiacomo Buechel, Christian J Kellenberger
2020 Pediatric Radiology  
In recent years, four-dimensional (4-D) flow MRI has emerged as an additional MR technique for retrospective assessment and visualisation of blood flow within the heart and any vessel of interest within  ...  Finally, we conclude with some details on accuracy, limitations and pitfalls of the technique.  ...  [22] comparing 4-D flow MRI with both 2-D phase-contrast and cine short-axis stack steady-state free precession results.  ... 
doi:10.1007/s00247-020-04885-w pmid:33313980 pmcid:PMC8266722 fatcat:vgesvixrxjbw7lq7f54a4nrhhy

Motion-guided segmentation for cine DENSE MRI

Bruce S. Spottiswoode, Xiaodong Zhong, Christine H. Lorenz, Bongani M. Mayosi, Ernesta M. Meintjes, Frederick H. Epstein
2009 Medical Image Analysis  
distinguish blood from myocardium, and 3. the method is independent of the shape of the tissue delineated and can be applied to short-or long-axis views, and on arbitrary regions of interest.  ...  Motion-guided contours were compared to manual contours for six conventional and six slice-followed mid-ventricular short-axis cine DENSE datasets.  ...  The left and right ventricles are shown, as are the epicardial and endocardial borders of the left ventricle (LV).  ... 
doi:10.1016/j.media.2008.06.016 pmid:18706851 pmcid:PMC2614556 fatcat:6r3yzqqj55b7zlqtidz3kg4emy

Spatio-Temporal Tensor Decomposition of a Polyaffine Motion Model for a Better Analysis of Pathological Left Ventricular Dynamics

Kristin McLeod, Maxime Sermesant, Philipp Beerbaum, Xavier Pennec
2015 IEEE Transactions on Medical Imaging  
motion patterns in terms of the spatial and temporal aspects of the motion.  ...  A key advantage of the proposed method is the ability to regenerate motion sequences from the respective models, thus the models can be visualised in terms of the full motion, which allows for better understanding  ...  The authors would also like to kindly thank the reviewers for their useful feedback and comments which helped to improve this work.  ... 
doi:10.1109/tmi.2015.2405579 pmid:25706580 fatcat:o5gom53m3jhfpkyrtfoqfhlfhi

4D flow for accurate assessment of complex flow distribution

Alison K Meadows, Michael D Hope, David Saloner, Charles B Higgins
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p172 fatcat:pe6myougb5eddaumwjz73qwpwu

4D flow for accurate assessment of differential pulmonary arterial flow in patients with tetralogy of Fallot

Alison K Meadows, Michael D Hope, David Saloner, Charles B Higgins
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-o52 fatcat:xkpwsvqhmjcpxcpowh7lhaswsu

4D flow evaluation of abnormal flow patterns with bicuspid aortic valve

Michael D Hope, Alison K Meadows, Thomas A Hope, Karen G Ordovas, David Saloner, Gautham P Reddy, Marcus T Alley, Charles B Higgins
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p184 fatcat:5t4p3lw2wzdvveyp6rv7iwo76q

Automatic delineation of myocardial contours in late-enhancement long-axis cardiac MR images

Cybele Ciofolo, Maxim Fradkin, Gilion Hautvast, Marcel Breeuwer
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p72 fatcat:pgua4t7zjrhp7mwfjoepvijrti

Altered right ventricular papillary muscle position and orientation in patients with dilated left ventricles

Erin M Spinner, Kartik Sundareswaran, Lakshimi Dasi, Vinod H Thourani, John Oshinski, Ajit P Yoganathan
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p71 fatcat:ubdliirljndxrf4z7hrt4z6ahe

The right ventricle shows distinct wall motion characteristics in L-TGA vs. D-TGA/atrial switch

Michelle Savacool, Philip Kilner, David Sahn, Willem Helbing, Harold Litt, Emanuela Valsangiacomo, Florence Sheehan
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p28 fatcat:vlokptxsrndplk3twizp6xse24

Is there an innate sex-based difference in the manner in which the left ventricle responds to the pressure overload of aortic stenosis?

Saundra Grant, Diane A Vido, Vikas K Rathi, June A Yamrozik, Ronald B Williams, Geetha Rayarao, Mark Doyle, Robert WW Biederman
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  LV mass (sequence parameters: GRE SSFP, matrix 256 × 192, short axis stack; full LV coverage, no gap; slice thickness 6 mm).  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p237 fatcat:vcl5ic4flfa33jyfwqceeqj3ee
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