Andreas Sigfridsson

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About me

Technical Director of Karolinska CMR

Articles

Article: SCIENTIFIC REPORTS. 2023;13(1):22806
Prognostic utility and characterization of left ventricular hypertrophy using global thickness
Lundin M; Heiberg E; Nordlund D; Gyllenhammar T; Steding-Ehrenborg K; Engblom H; Carlsson M; Atar D; van der Pals J; Erlinge D; Borgquist R; Khoshnood A; Ekelund U; Nickander J; Themudo R; Nordin S; Kozor R; Bhuva AN; Moon JC; Maret E; Caidahl K; Sigfridsson A; Sorensson P; Schelbert EB; Arheden H; Ugander M
Article: EUR HEART J IMAGING METHODS PRACT. 2023;1(2):qyad028
Normal values for native T1 at 1.5 T in the pericardial fluid of healthy volunteers
Thalén S; Ramos JG; Engblom H; Sigfridsson A; Sörensson P; Ugander M
Article: MAGNETIC RESONANCE IN MEDICINE. 2023;90(3):1041-1052
Three-dimensional sector-wise golden angle-improved k-space uniformity after electrocardiogram binning
Fyrdahl A; Ullvin A; Ramos JG; Seiberlich N; Ugander M; Sigfridsson A
Article: EUR HEART J IMAGING METHODS PRACT. 2023;1(1):qyad014
Non-invasive estimation of mean pulmonary artery pressure by cardiovascular magnetic resonance in under 2 min scan time
Abdula G; Ramos JG; Marlevi D; Fyrdahl A; Engblom H; Sörensson P; Giese D; Jin N; Sigfridsson A; Ugander M
Article: JACC CARDIOVASCULAR IMAGING. 2023;16(4):558-559
Pulmonary Hypertension by Catheterization Is More Accurately Detected by Cardiovascular Magnetic Resonance 4D-Flow Than Echocardiography
Ramos JG; Wieslander B; Fyrdahl A; Reiter G; Reiter U; Jin N; Skott V; Melin M; Sundblad P; Sigfridsson A; Ugander M
Article: JOURNAL OF THORACIC IMAGING. 2022;37(1):17-25
Diffusely Increased Myocardial Extracellular Volume With or Without Focal Late Gadolinium Enhancement Prevalence and Associations With Left Ventricular Size and Function
Lundin M; Sorensson P; Maret E; Jenner J; Abdula G; Nickander J; Themudo R; Caidahl K; Kellman P; Sigfridsson A; Ugander M
Article: MAGNETIC RESONANCE MATERIALS IN PHYSICS, BIOLOGY, AND MEDICINE. 2021;34(1):109-118
Generalization of three-dimensional golden-angle radial acquisition to reduce eddy current artifacts in bSSFP CMR imaging
Fyrdahl A; Holst K; Caidahl K; Ugander M; Sigfridsson A
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2020;22(1):83
Clinical validation of three cardiovascular magnetic resonance techniques to measure strain and torsion in patients with suspected coronary artery disease.
Kihlberg J; Gupta V; Haraldsson H; Sigfridsson A; Sarvari SI; Ebbers T; Engvall JE
Article: JACC CARDIOVASCULAR IMAGING. 2020;13(12):2530-2542
Comprehensive Cardiovascular Magnetic Resonance Diastolic Dysfunction Grading Shows Very Good Agreement Compared With Echocardiography.
Ramos JG; Fyrdahl A; Wieslander B; Thalén S; Reiter G; Reiter U; Jin N; Maret E; Eriksson M; Caidahl K; Sörensson P; Sigfridsson A; Ugander M
Article: SCIENTIFIC REPORTS. 2020;10(1):10380
Females have higher myocardial perfusion, blood volume and extracellular volume compared to males - an adenosine stress cardiovascular magnetic resonance study
Nickander J; Themudo R; Sigfridsson A; Xue H; Kellman P; Ugander M
Article: MAGNETIC RESONANCE IN MEDICINE. 2020;83(4):1310-1321
Sector-wise golden-angle phase contrast with high temporal resolution for evaluation of left ventricular diastolic dysfunction
Fyrdahl A; Ramos JG; Eriksson MJ; Caidahl K; Ugander M; Sigfridsson A
Article: SCIENTIFIC REPORTS. 2020;10(1):5053
Stationary tissue background correction increases the precision of clinical evaluation of intra-cardiac shunts by cardiovascular magnetic resonance
Nickander J; Lundin M; Abdula G; Jenner J; Maret E; Sorensson P; Heiberg E; Sigfridsson A; Ugander M
Article: BMC MEDICAL IMAGING. 2020;20(1):28
Cardiovascular magnetic resonance 4D flow analysis has a higher diagnostic yield than Doppler echocardiography for detecting increased pulmonary artery pressure
Ramos JG; Fyrdahl A; Wieslander B; Reiter G; Reiter U; Jin N; Maret E; Eriksson M; Caidahl K; Sorensson P; Sigfridsson A; Ugander M
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2019;21(1):73
The relative contributions of myocardial perfusion, blood volume and extracellular volume to native T1 and native T2 at rest and during adenosine stress in normal physiology
Nickander J; Themudo R; Thalen S; Sigfridsson A; Xue H; Kellman P; Ugander M
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2019;21(1):71
The dynamics of extracellular gadolinium-based contrast agent excretion into pleural and pericardial effusions quantified by T1 mapping cardiovascular magnetic resonance
Thalen S; Maanja M; Sigfridsson A; Maret E; Sorensson P; Ugander M
Article: CLINICAL PHYSIOLOGY AND FUNCTIONAL IMAGING. 2019;39(6):384-392
Detection of myocarditis using T₁ and ECV mapping is not improved by early compared to late post-contrast imaging
Lundin M; Sorensson P; Vishnevskaya L; Maret E; Kellman P; Sigfridsson A; Ugander M
Article: MAGNETIC RESONANCE MATERIALS IN PHYSICS, BIOLOGY, AND MEDICINE. 2019;32(3):331-341
Projection-based respiratory-resolved left ventricular volume measurements in patients using free-breathing double golden-angle 3D radial acquisition
Holst K; Fyrdahl A; Caidahl K; Ugander M; Sigfridsson A
Article: JOURNAL OF ELECTROCARDIOLOGY. 2018;51(6):1071-1076
Ejection fraction in left bundle branch block is disproportionately reduced in relation to amount of myocardial scar
Axelsson J; Wieslander B; Jablonowski R; Klem I; Nijveldt R; Schelbert EB; Sorensson P; Sigfridsson A; Chaudhry U; Platonov PG; Borgquist R; Engblom H; Strauss DG; Arheden H; Atwater BD; Ugander M
Article: MAGNETIC RESONANCE IN MEDICINE. 2018;80(5):1847-1856
Pulmonary artery imaging under free-breathing using golden-angle radial bSSFP MRI: a proof of concept
Fyrdahl A; Paris RV; Nyren S; Holst K; Ugander M; Lindholm P; Sigfridsson A
Article: JOURNAL OF ELECTROCARDIOLOGY. 2018;51(5):779-786
The ability of the electrocardiogram in left bundle branch block to detect myocardial scar determined by cardiovascular magnetic resonance
Wieslander B; Xia X; Jablonowski R; Axelsson J; Klem I; Nijveldt R; Maynard C; Schelbert EB; Sorensson P; Sigfridsson A; Chaudhry U; Platonov PG; Borgquist R; Engblom H; Couderc J-P; Strauss DG; Atwater BD; Ugander M
Article: SCANDINAVIAN CARDIOVASCULAR JOURNAL. 2018;52(3):127-132
Synthetic late gadolinium enhancement cardiac magnetic resonance for diagnosing myocardial scar
Abdula G; Nickander J; Sorensson P; Lundin M; Kellman P; Sigfridsson A; Ugander M
Article: MAGNETIC RESONANCE IN MEDICINE. 2018;79(5):2693-2701
Respiratory variation in left ventricular cardiac function with 3D double golden-angle whole-heart cine imaging
Holst K; Ugander M; Sigfridsson A
Article: MAGNETIC RESONANCE IMAGING. 2017;43:48-55
Left ventricular volume measurements with free breathing respiratory self-gated 3-dimensional golden angle radial whole-heart cine imaging - Feasibility and reproducibility
Holst K; Ugander M; Sigfridsson A
Article: AMERICAN JOURNAL OF CARDIOLOGY. 2017;119(10):1542-1547
Comparison of Displacement Encoding With Stimulated Echoes to Magnetic Resonance Feature Tracking for the Assessment of Myocardial Strain in Patients With Acute Myocardial Infarction
Goto Y; Ishida M; Takase S; Sigfridsson A; Uno M; Nagata M; Ichikawa Y; Kitagawa K; Sakuma H
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2017;19(1):41
Blood correction reduces variability and gender differences in native myocardial T1 values at 1.5 T cardiovascular magnetic resonance - a derivation/validation approach
Nickander J; Lundin M; Abdula G; Sorensson P; Rosmini S; Moon JC; Kellman P; Sigfridsson A; Ugander M
Article: RADIOLOGY. 2016;278(3):742-751
Hyperpolarized Metabolic MR Imaging of Acute Myocardial Changes and Recovery after Ischemia-Reperfusion in a Small-Animal Model
H-Ici DO; Wespi P; Busch J; Wissmann L; Krajewski M; Weiss K; Sigfridsson A; Messroghli D; Kozerke S
Article: MAGNETIC RESONANCE IN MEDICINE. 2016;75(3):1249-1255
Quantification of turbulence and velocity in stenotic flow using spiral three-dimensional phase-contrast MRI
Petersson S; Dyverfeldt P; Sigfridsson A; Lantz J; Carlhall C-J; Ebbers T
Article: MAGNETIC RESONANCE IN MEDICINE. 2016;75(1):196-206
Retrospectively Gated Intracardiac 4D Flow MRI Using Spiral Trajectories
Petersson S; Sigfridsson A; Dyverfeldt P; Carlhall C-J; Ebbers T
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2015;17(1):50
Clinical experience of strain imaging using DENSE for detecting infarcted cardiac segments
Kihlberg J; Haraldsson H; Sigfridsson A; Ebbers T; Engvall JE
Article: MAGNETIC RESONANCE IN MEDICINE. 2015;73(5):1713-1717
Hybrid Multiband Excitation Multiecho Acquisition for Hyperpolarized ¹³C Spectroscopic Imaging
Sigfridsson A; Weiss K; Wissmann L; Busch J; Krajewski M; Batel M; Batsios G; Ernst M; Kozerke S
Article: MAGNETIC RESONANCE IN MEDICINE. 2014;71(4):1405-1415
Mapping Mean and Fluctuating Velocities by Bayesian Multipoint MR Velocity Encoding-Validation Against 3D Particle Tracking Velocimetry
Knobloch V; Binter C; Guelan U; Sigfridsson A; Holzner M; Luethi B; Kozerke S
Article: INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING. 2013;29(8):1779-1786
Quantitative assessment of myocardial strain with displacement encoding with stimulated echoes MRI in patients with coronary artery disease
Miyagi H; Nagata M; Kitagawa K; Kato S; Takase S; Sigfridsson A; Ishida M; Dohi K; Ito M; Sakuma H
Article: NMR IN BIOMEDICINE. 2013;26(11):1380-1386
Accelerating hyperpolarized metabolic imaging of the heart by exploiting spatiotemporal correlations
Weiss K; Sigfridsson A; Wissmann L; Busch J; Batel M; Krajewski M; Ernst M; Kozerke S
Article: MAGNETIC RESONANCE IN MEDICINE. 2013;69(5):1337-1345
Bayesian multipoint velocity encoding for concurrent flow and turbulence mapping
Binter C; Knobloch V; Manka R; Sigfridsson A; Kozerke S
Article: MAGNETIC RESONANCE IN MEDICINE. 2012;68(4):1065-1073
Four-dimensional flow MRI using spiral acquisition
Sigfridsson A; Petersson S; Carlhall C-J; Ebbers T
Article: BMC MEDICAL IMAGING. 2012;12:9
Myocardial strains from 3D displacement encoded magnetic resonance imaging
Kindberg K; Haraldsson H; Sigfridsson A; Engvall J; Ingels NBJ; Ebbers T; Karlsson M
Article: CLINICAL PHYSIOLOGY AND FUNCTIONAL IMAGING. 2012;32(2):139-144
Temporal 3D Lagrangian strain from 2D slice-followed cine DENSE MRI
Kindberg K; Haraldsson H; Sigfridsson A; Sakuma H; Ebbers T; Karlsson M
Article: MAGNETIC RESONANCE IN MEDICINE. 2011;65(4):1103-1111
Influence of the FID and Off-Resonance Effects in DENSE MRI
Haraldsson H; Sigfridsson A; Sakuma H; Engvall J; Ebbers T
Article: MAGNETIC RESONANCE IN MEDICINE. 2011;65(3):725-731
A Novel MRI Framework for the Quantification of Any Moment of Arbitrary Velocity Distributions
Dyverfeldt P; Sigfridsson A; Knutsson H; Ebbers T
Article: JOURNAL OF MAGNETIC RESONANCE IMAGING. 2011;33(3):582-588
Hemodynamic Aspects of Mitral Regurgitation Assessed by Generalized Phase-Contrast MRI
Dyverfeldt P; Kvitting J-PE; Carlhall CJ; Boano G; Sigfridsson A; Hermansson U; Bolger AF; Engvall J; Ebbers T
Article: MAGNETIC RESONANCE IMAGING. 2011;29(2):202-208
In vivo SNR in DENSE MRI; temporal and regional effects of field strength, receiver coil sensitivity and flip angle strategies
Sigfridsson A; Haraldsson H; Ebbers T; Knutsson H; Sakuma H
Article: JOURNAL OF MAGNETIC RESONANCE IMAGING. 2010;31(5):1075-1080
In Vitro Assessment of Flow Patterns and Turbulence Intensity in Prosthetic Heart Valves Using Generalized Phase-Contrast MRI
Kvitting J-PE; Dyverfeldt P; Sigfridsson A; Franzen S; Wigstrom L; Bolger AF; Ebbers T
Article: MAGNETIC RESONANCE IN MEDICINE. 2010;63(5):1411-1414
Single-Breath-Hold Multiple-Slice DENSE MRI
Sigfridsson A; Haraldsson H; Ebbers T; Knutsson H; Sakuma H
Article: CLINICAL PHYSIOLOGY AND FUNCTIONAL IMAGING. 2010;30(1):23-29
Analysis of human myocardial dynamics using virtual markers based on magnetic resonance imaging
Kvitting J-PE; Sigfridsson A; Wigstrom L; Bolger AF; Karlsson M
Article: MAGNETIC RESONANCE IMAGING. 2009;27(7):913-922
On MRI turbulence quantification
Dyverfeldt P; Gardhagen R; Sigfridsson A; Karlsson M; Ebbers T
Article: JOURNAL OF MAGNETIC RESONANCE IMAGING. 2008;28(3):655-663
Assessment of fluctuating velocities in disturbed cardiovascular blood flow: In vivo feasibility of generalized phase-contrast MRI
Dyverfeldt P; Kvitting J-PE; Sigfridsson A; Engvall J; Bolger AF; Ebbers T
Article: MAGNETIC RESONANCE IN MEDICINE. 2007;58(5):922-930
k-t² BLAST:: Exploiting spatiotemporal structure in simultaneously cardiac and respiratory time-resolved volumetric Imaging
Sigfridsson A; Wigstroem L; Kvitting J-PE; Knutsson H
Article: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2007;9(5):741-747
Transit of blood flow through the human left ventricle mapped by cardiovascular magnetic resonance
Bolger AF; Heiberg E; Karlsson M; Wigstroem L; Engvall J; Sigfridsson A; Ebbers T; Kvitting J-PE; Carlhaell CJ; Wranne B
Article: LECTURE NOTES IN COMPUTER SCIENCE (INCLUDING SUBSERIES LECTURE NOTES IN ARTIFICIAL INTELLIGENCE AND LECTURE NOTES IN BIOINFORMATICS). 2007;10(Pt 2):385-392
Improving temporal fidelity in k-t BLAST MRI reconstruction.
Sigfridsson A; Andersson M; Wigström L; Kvitting J-PE; Knutsson H
Article: MAGNETIC RESONANCE IN MEDICINE. 2006;56(4):850-858
Quantification of intravoxel velocity standard deviation and turbulence intensity by generalizing phase-contrast MRI
Dyverfeldt P; Sigfridsson A; Kvitting J-PE; Ebbers T
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All other publications

Preprint: MEDRXIV. 2024
Estimation of mean pulmonary artery pressure by cardiovascular magnetic resonance four-dimensional flow and compressed sensing
Abdula G; Bergqvist P; Castaings J; Fyrdahl A; Giese D; Jin N; Testud F; Sörensson P; Sigfridsson A; Ugander M; Marlevi D
Preprint: ARXIV. 2023
Generalized super-resolution 4D Flow MRI-using ensemble learning to extend across the cardiovascular system.
Ericsson L; Hjalmarsson A; Akbar MU; Ferdian E; Bonini M; Hardy B; Schollenberger J; Aristova M; Winter P; Burris N; Fyrdahl A; Sigfridsson A; Schnell S; Figueroa CA; Nordsletten D; Young AA; Marlevi D
Preprint: MEDRXIV. 2023
Normal values for mitral and tricuspid early inflow blood flow velocity variation using real time phase contrast cardiovascular magnetic resonance
Thalén S; Heiberg E; Sörensson P; Giese D; Sigfridsson A; Ugander M
Preprint: MEDRXIV. 2023
Strain measures of the left ventricle and left atrium are composite measures of left heart geometry and function
Fröjdh F; Soundappan D; Sörensson P; Sigfridsson A; Maret E; Nickander J; Ugander M
Preprint: MEDRXIV. 2023
Ferric carboxymaltose has a higher distribution into myocardium than gadobutrol – a quantitative T1 mapping study in healthy volunteers
Abdula G; Lundin M; Nickander J; Sörensson P; Sigfridsson A; Themudo R; Ugander M
Published conference paper: LECTURE NOTES IN COMPUTER SCIENCE (INCLUDING SUBSERIES LECTURE NOTES IN ARTIFICIAL INTELLIGENCE AND LECTURE NOTES IN BIOINFORMATICS). 2023;13958:425-434
Vortex Duration Time to Infer Pulmonary Hypertension: In-Silico Emulation and Dependence on Quantification Technique
Sabry M; Lamata P; Sigfridsson A; Keramati H; Fyrdahl A; Ugander M; Yacoub MH; Marlevi D; De Vecchi A
Preprint: MEDRXIV. 2022
Accuracy of left ventricular mechanical dyssynchrony indices for mechanical characteristics of left bundle branch block using cardiovascular magnetic resonance feature tracking
Loewenstein D; Wieslander B; Heiberg E; Axelsson J; Klem I; Nijveldt R; Schelbert E; Sörensson P; Sigfridsson A; Strauss D; Kim R; Atwater B; Ugander M
Preprint: MEDRXIV. 2022
Left ventricular mass and global wall thickness – prognostic utility and characterization of left ventricular hypertrophy
Lundin M; Heiberg E; Nordlund D; Gyllenhammar T; Steding-Ehrenborg K; Engblom H; Carlsson M; Atar D; van der Pals J; Erlinge D; Borgquist R; Khoshnood A; Ekelund U; Nickander J; Themudo R; Nordin S; Kozor R; Bhuva A; Moon J; Maret E; Caidahl K; Sigfridsson A; Sörensson P; Schelbert E; Arheden H; Ugander M
Meeting abstract: EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING. 2021;22(Supplement_2):jeab090.116
No differences in native T1 of the renal cortex between Fabry patients and healthy volunteers in clinically acquired native T1 maps by cardiovascular magnetic resonance
Kjellberg F; Sorensson P; Sigfridsson A; Ugander M; Oscarson M; Nickander J
Meeting abstract: EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING. 2019;20(Supplement_2):jez118.026
Understanding the geometric basis for longitudinal left atrial strain and its relation to left ventricular measures
Soundappan D; Frojdh F; Loewenstein D; Sorensson P; Sigfridsson A; Maret E; Schelbert E; Kozor R; Ugander M
Meeting abstract: EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING. 2019;20(Supplement_2):jez122.001
Diastolic dysfunction grading with a comprehensive CMR protocol - feasibility and agreement compared to echocardiography
Ramos JG; Fyrdahl A; Wieslander B; Thalen S; Reiter G; Reiter U; Jin N; Maret E; Eriksson M; Caidahl K; Sorensson P; Sigfridsson A; Ugander M
Other: JOURNAL OF ELECTROCARDIOLOGY. 2019;53:115
Ejection fraction in left bundle branch block is disproportionately reduced in relation to amount of myocardial scar (vol 51, pg 1071, 2018)
Axelsson J; Wieslander B; Jablonowski R; Klem I; Nijveldt R; Schelbert EB; Sorensson P; Sigfridsson A; Chaudhry U; Platonov PG; Borgquist R; Engblom H; Strauss DG; Arheden H; Atwater BD; Ugander M
Meeting abstract: EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING. 2019;20:353
Understanding the geometric basis for longitudinal left atrial strain and its relation to left ventricular measures
Soundappan D; Frojdh F; Loewenstein D; Sorensson P; Sigfridsson A; Maret E; Schelbert E; Kozor R; Ugander M
Meeting abstract: EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING. 2019;20:239-240
Diastolic dysfunction grading with a comprehensive CMR protocol - feasibility and agreement compared to echocardiography
Ramos J; Fyrdahl A; Wieslander B; Thalén S; Reiter G; Reiter U; Jin N; Maret E; Eriksson M; Caidahl K; Sörensson P; Sigfridsson A; Ugander M
Meeting abstract: JOURNAL OF ELECTROCARDIOLOGY. 2018;51(1):e11-e12
Pathological S-wave in lead I in left bundle branch block is associated with MRI scar and reduced left ventricular function
Wieslander B; Xia X; Jablonowski R; Axelsson J; Loring Z; Klem I; Nijveldt R; Maynard C; Schelbert EB; Sörensson P; Sigfridsson A; Chaudhry U; Platonov PG; Borgquist R; Engblom H; Couderc J-P; Strauss DG; Wagner GS; Atwater BD; Ugander M
Meeting abstract: JOURNAL OF ELECTROCARDIOLOGY. 2017;50(6):868-869
Pathological S-wave in lead I in left bundle branch block is associated with MRI scar and reduced left ventricular function
Atwater BD; Axelsson J; Borgquist R; Chaudhry U; Couderc J-P; Engblom H; Jablonowski R; Klem I; Loring Z; Maynard C; Nijveldt R; Platonov PG; Schelbert EB; Sigfridsson A; Sörensson P; Strauss DG; Ugander M; Wagner GS; Wieslander B; Xia X
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):p237
Measurement of the intracellular lifetime of water to estimate myocardial cell size is not feasible in humans using clinical contrast agent doses at 1.5T
Lundin M; Sörensson P; Kellman P; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):p246
In patients with acute myocarditis, the difference in apparent extracellular volume fraction between affected and healthy myocardium does not differ between early and late post-contrast imaging
Lundin M; Sörensson P; Kellman P; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):q70
A semi-automatic method for quantification of respiratory variation in early mitral inflow velocity using real time phase contrast cardiac magnetic resonance - normal values and clinical feasibility
Thalén S; Sörensson P; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):p245
Best precision in measuring Qp/Qs is achieved with quadratic, not linear, stationary tissue background correction in phase contrast velocity encoded CMR
Nickander J; Sörensson P; Heiberg E; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):p242
Free-breathing respiratory self-gated Golden angle RAdial Three-dimensional whole-heart isotropic cine imaging for left ventricular volumetric Evaluation (GRATE) - comparison with conventional 2D breath-hold cine imaging
Holst K; Ugander M; Sigfridsson A
Book chapter: HEART MECHANICS MAGNETIC RESONANCE IMAGING – MATHEMATICAL MODELING, PULSE SEQUENCES AND IMAGE ANALYSIS. 2016;p.
Chapter 9: Heart Mechanics: From Implanted Markers to Magnetic Resonance Imaging Tagging
Ibrahim ESH; Sigfridsson A; Kvitting JPE
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2016;18(Suppl 1):p229
Quantification of the myocardial partition coefficient for intravenous iron (ferric carboxymaltose) using T1 mapping cardiovascular magnetic resonance
Abdula G; Valadkhani A; Lundin M; Sörensson P; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2015;17(Proceedings 21st Scientific Meeting, ISMRM 2013):o100
Hyperpolarized metabolic imaging of myocardial ischemia-reperfusion in a small-animal model at 9.4T
O'h-Ici D; Wespi P; Busch J; Wissmann L; Sigfridsson A; Weiss K; Messroghli D; Kozerke S
Meeting abstract: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2015;17(Suppl 1):q47
Native myocardial T1 precision is increased by correcting for myocardial blood variation
Nickander J; Lundin M; Abdula G; Sörensson P; Moon J; Kellman P; Sigfridsson A; Ugander M
Meeting abstract: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2015;17(Suppl 1):p65
Background phase correction in phase contrast velocity encoded CMR reduces gender differences and improves the accuracy and precision of Qp/Qs
Nickander J; Lundin M; Jenner J; Maret E; Sörensson P; Sigfridsson A; Ugander M
Meeting abstract: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE. 2014;16(Suppl 1):p213
Synthetic phase sensitive inversion recovery late gadolinium enhancement from post-contrast T1-mapping shows excellent agreement with conventional PSIR-LGE for diagnosing myocardial scar
Abdula G; Sörensson P; Lundin M; Svedin J; Klein M; Kellman P; Sigfridsson A; Ugander M
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2013;15(Suppl 1):p217
Multi-echo single-shot EPI for hyperpolarized 13C cardiac metabolic imaging of small animals
Sigfridsson A; Weiss K; Wissmann L; Busch J; Krajewski M; h-Ici DO; Batel M; Batsios G; Kozerke S
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2013;15(Suppl 1):o64
Retrospectively gated intra-cardiac 4D flow CMR using spiral k-space trajectories
Petersson S; Sigfridsson A; Carlhall CJ; Ebbers T
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2012;14(Suppl 1):w9
Assessment of energy loss across aortic valves using accelerated CMR multi-point flow measurements
Binter C; Knobloch V; Manka R; Sigfridsson A; Kozerke S
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2012;14(Suppl 1):w31
Spiral readouts for 4D flow MRI
Sigfridsson A; Petersson S; Carlhall CJ; Ebbers T
Editorial comment: CIRCULATION. 2012;125(9):F54
Funding: Marie Curie Intra-European Fellowship for Career Development
Sigfridsson A; Taylor J
Review: LAKARTIDNINGEN. 2009;106(30-31):1901-1904
[MR allows a unique possibility to see how the blood flow affects the cardiovascular system].
Kvitting J-PE; Dyverfeldt P; Carlhäll CJ; Sigfridsson A; Bolger AF; Ebbers T; Engvall J
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2009;11(Suppl 1):p221
Multi slice DENSE in a single breath hold
Sigfridsson A; Haraldsson H; Ebbers T; Takase S; Sakuma H
Book chapter: TENSORS IN IMAGE PROCESSING AND COMPUTER VISION: ADVANCES IN COMPUTER VISION AND PATTERN RECOGNITION. 2009;p. 407-428
Similar Tensor Arrays – A Framework for Storage of Tensor Array Data
Brun A; Martin-Fernandez M; Acar B; Munoz-Moreno E; Cammoun L; Sigfridsson A; Sosa-Cabrera D; Svensson B; Herberthson M; Knutsson H
Meeting abstract: CRITICAL REVIEWS IN COMPUTED TOMOGRAPHY. 2008;10(Suppl 1):a44
Multidimensional turbulence mapping in mitral insufficiency
Kvitting J-PE; Dyverfeldt P; Boano G; Sigfridsson A; Engvall J; Bolger AF; Ebbers T
Corrigendum: MAGNETIC RESONANCE IN MEDICINE. 2007;57(1):233
Quantification of intra-voxel velocity standard deviation and turbulence intensity by generalizing phase-contrast MRI. (vol 56, pg 850, 2006)
Dyverfeldt P; Sigfridsson A; Kvitting JPE; Ebbers T
Published conference paper: JOURNAL OF MAGNETIC RESONANCE IMAGING. 2007;25(1):113-121
Five-dimensional MRI incorporating simultaneous resolution of cardiac and respiratory phases for volumetric imaging
Sigfridsson A; Escobar Kvitting J-P; Knutsson H; Wigstrom L
Meeting abstract: JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY. 2006;47(4):49A
Preservation of diastolic kinetic energy: A marker of ventricular efficiency?
Bolger A; Heiberg E; Sigfridsson A; Kvitting JPE; Engvall J; Wigstrom L; Karlsson M; Wranne B
Published conference paper: IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING. 2004;2:896-899
Motion Artifact Reduction in MRI Through Generalized DFT
Knutsson H; Andersson M; Wigström L; Borga M; Sigfridsson A
Published conference paper: INTERNATIONAL WORKSHOP ON COMPUTER AIDED SYSTEMS THEORY. 2003
Diffusion tensor visualization using random field correlation and volume rendering
Sigfridsson A; Estepar RSJ; Wigström L; Alberola C; Westin C-F
Published conference paper: IEEE VISUALIZATION. 2002;:371-378
Tensor Field Visualisation using Adaptive Filtering of Noise Fields combined with Glyph Rendering
Sigfridsson A; Ebbers T; Heiberg E; Wigström L
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Grants

A Framework for Multi-dimensional Adaptive Cardiac MRI using online motion estimators
Karolinska Institutet
1 January 2024 - 31 December 2028
A Framework for Multi-dimensional Adaptive Cardiac MRI using online motion estimators
Swedish Research Council
1 January 2023 - 31 December 2026
Heart Failure and Cardiovascular Magnetic Resonance Imaging – Pathophysiological Mechanisms, New Methodologies, Improved Diagnosis and New Treatment
Swedish Research Council
1 January 2018 - 31 December 2021
In vivo Cardiac Metabolic Imaging
Swedish Foundation for Strategic Research
1 September 2013 - 31 August 2018

Employments

Affiliated to Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, 2023-2026

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