36 Result(s)

Article

Quantitative susceptibility map** (QSM) of the cardiovascular system: challenges and perspectives

Quantitative susceptibility map** (QSM) is a powerful, non-invasive, magnetic resonance imaging (MRI) technique that relies on measurement of magnetic susceptibility. So far, QSM has been employed mostly to ...

Alberto Aimo, Li Huang, Andrew Tyler… in Journal of Cardiovascular Magnetic Resonan… (2022)

Article

Contrast-free high-resolution 3D magnetization transfer imaging for simultaneous myocardial scar and cardiac vein visualization

To develop a three-dimensional (3D) high-resolution free-breathing magnetization transfer ratio (MTR) sequence for contrast-free assessment of myocardial infarct and coronary vein anatomy.

Karina López, Radhouene Neji… in Magnetic Resonance Materials in Physics, B… (2020)

Article

Invasive cardiovascular magnetic resonance (iCMR) for diagnostic right and left heart catheterization using an MR-conditional guidewire and passive visualization in congenital heart disease

Today’s standard of care, in the congenital heart disease (CHD) population, involves performing cardiac catheterization under x-ray fluoroscopy and cardiac magnetic resonance (CMR) imaging separately. The uniq...

Surendranath R. Veeram Reddy, Yousef Arar… in Journal of Cardiovascular Magnetic Resonan… (2020)

Article

Improved co-registration of ex-vivo and in-vivo cardiovascular magnetic resonance images using heart-specific flexible 3D printed acrylic scaffold combined with non-rigid registration

Ex-vivo cardiovascular magnetic resonance (CMR) imaging has played an important role in the validation of in-vivo CMR characterization of pathological processes. However, comparison between in-vivo and ex-vivo...

John Whitaker, Radhouene Neji… in Journal of Cardiovascular Magnetic Resonan… (2019)

Article

Simultaneous ¹³N-Ammonia and gadolinium first-pass myocardial perfusion with quantitative hybrid PET-MR imaging: a phantom and clinical feasibility study

Positron emission tomography (PET) is the non-invasive reference standard for myocardial blood flow (MBF) quantification. Hybrid PET-MR allows simultaneous PET and cardiac magnetic resonance (CMR) acquisition ...

Muhummad Sohaib Nazir, Sarah-May Gould… in European Journal of Hybrid Imaging (2019)

Article

Advances in Real-Time MRI–Guided Electrophysiology

Theoretical benefits of real-time MRI guidance over conventional electrophysiology include contemporaneous 3D substrate assessment and accurate intra-procedural guidance and evaluation of ablation lesions. We ...

Rahul K. Mukherjee, Henry Chubb, Sébastien Roujol… in Current Cardiovascular Imaging Reports (2019)

Article

Simultaneous multi slice (SMS) balanced steady state free precession first-pass myocardial perfusion cardiovascular magnetic resonance with iterative reconstruction at 1.5 T

Simultaneous-Multi-Slice (SMS) perfusion imaging has the potential to acquire multiple slices, increasing myocardial coverage without sacrificing in-plane spatial resolution. To maximise signal-to-noise ratio ...

Muhummad Sohaib Nazir, Radhouene Neji… in Journal of Cardiovascular Magnetic Resonan… (2018)

Article

The reproducibility of late gadolinium enhancement cardiovascular magnetic resonance imaging of post-ablation atrial scar: a cross-over study

Cardiovascular magnetic resonance (CMR) imaging has been used to visualise post-ablation atrial scar (PAAS), generally employing a three-dimensional (3D) late gadolinium enhancement (LGE) technique. However th...

Henry Chubb, Rashed Karim, Sébastien Roujol… in Journal of Cardiovascular Magnetic Resonan… (2018)

Article

Improved passive catheter tracking with positive contrast for CMR-guided cardiac catheterization using partial saturation (pSAT)

Cardiac catheterization is a common procedure in patients with congenital heart disease (CHD). Although cardiovascular magnetic resonance imaging (CMR) represents a promising alternative approach to fluoroscop...

Mari Nieves Velasco Forte… in Journal of Cardiovascular Magnetic Resonan… (2017)

Article

Relationship between native papillary muscle T₁ time and severity of functional mitral regurgitation in patients with non-ischemic dilated cardiomyopathy

Functional mitral regurgitation is one of the severe complications of non-ischemic dilated cardiomyopathy (DCM). Non-contrast native T₁ map** has emerged as a non-invasive method to evaluate myocardial fibrosis...

Shingo Kato, Shiro Nakamori… in Journal of Cardiovascular Magnetic Resonan… (2016)

Article

Diffuse Myocardial Fibrosis detected by Multi-slice T₁ Map** using Slice Interleaved T₁ (STONE) Sequence in Patients with Hypertrophic Cardiomyopathy

Shingo Kato, Steven Bellm, Sébastien Roujol… in Journal of Cardiovascular Magnetic Resonan… (2016)

Article

Native left ventricular myocardial T₁ spatial heterogeneity in non-ischemic dilated cardiomyopathy

Abyaad Kashem, Ravi V Shah, Shingo Kato… in Journal of Cardiovascular Magnetic Resonan… (2016)

Article

Papillary muscle native T₁ time is associated with severity of functional mitral regurgitation in patients with non-ischemic dilated cardiomyopathy

Shingo Kato, Sébastien Roujol, Shadi Akhtari… in Journal of Cardiovascular Magnetic Resonan… (2016)

Article

Myocardial T₁ map** with spectrally-selective inversion pulse to reduce the influence of fat

Maryam Nezafat, Sébastien Roujol, Jihye Jang… in Journal of Cardiovascular Magnetic Resonan… (2016)

Article

Impact of motion correction on reproducibility and spatial variability of quantitative myocardial T₂ map**

To evaluate and quantify the impact of a novel image-based motion correction technique in myocardial T₂ map** in terms of measurement reproducibility and spatial variability.

Sébastien Roujol, Tamer A. Basha… in Journal of Cardiovascular Magnetic Resonan… (2015)

Article

Cardiac magnetic resonance evidence of diffuse myocardial fibrosis in patients with mitral valve prolapse

An H Bui, Sébastien Roujol, Murilo Foppa… in Journal of Cardiovascular Magnetic Resonan… (2015)

Article

Native T₁ map** identifies subclinical left ventricular myocardial t1 abnormality in patients with atrial fibrillation referred for pulmonary vein isolation

Shingo Kato, Sébastien Roujol, Jihye Jang… in Journal of Cardiovascular Magnetic Resonan… (2015)

Article

Initial evidence of presence of papillary muscle diffuse fibrosis in patients with cardiomyopathy

Shingo Kato, Sébastien Roujol, Jihye Jang… in Journal of Cardiovascular Magnetic Resonan… (2015)

Article

Reproducibility of free-breathing multi-slice native myocardial T₁ map** using the slice-interleaved T₁ (STONE) sequence

Jihye Jang, Sébastien Roujol… in Journal of Cardiovascular Magnetic Resonan… (2015)

Article

Black blood late gadolinium enhancement using combined T₂ magnetization preparation and inversion recovery

Tamer Basha, Sébastien Roujol… in Journal of Cardiovascular Magnetic Resonan… (2015)