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JOURNAL ARTICLE
Datta Singh Goolaub, Christopher K Macgowan
BACKGROUND: The use of non-Cartesian MRI trajectories at golden angle increments has the advantage of allowing retrospective motion correction and image-based gating using intermediate real-time reconstructions. However, when the acquired data is cardiac binned for CINE imaging, trajectories are found to cluster together at certain heart rates and leave large unsampled gaps in k-space, leading to image artifacts. In this work, we (1) demonstrate an approach to reduce clustering by inserting additional angular rotations periodically within the trajectory, and (2) optimize for these additional angles using particle swarm optimization while still allowing for important intermediate reconstructions...
January 28, 2024: Journal of Cardiovascular Magnetic Resonance
#22
JOURNAL ARTICLE
Lukas D Weberling, David Albert, Andreas Ochs, Marco Ochs, Deborah Siry, Janek Salatzki, Evangelos Giannitsis, Norbert Frey, Johannes Riffel, Florian André
BACKGROUND: Acute myocardial injury is a common diagnosis in the emergency department and differential diagnoses are numerous. Cardiac magnetic resonance (CMR) strain sequences like fSENC are early predictors of myocardial function loss. This study assessed the potential diagnostic and prognostic benefits of a layer-specific approach. METHODS: For this prospective study patients in the emergency department fulfilling rule-in criteria for non-ST-elevation myocardial infarction (NSTEMI) received an ultra-fast fSENC CMR...
January 18, 2024: Journal of Cardiovascular Magnetic Resonance
#23
JOURNAL ARTICLE
Motoki Nakazawa, Hidenari Matsumoto, Debiao Li, Piotr J Slomka, Dey Damini, Sebastien Cadet, Koji Isodono, Daisuke Irie, Satoshi Higuchi, Hiroki Tanisawa, Hidefumi Ohya, Ryoji Kitamura, Yoshiaki Komori, Tetsuichi Hondera, Ikumi Sato, Hsu-Lei Lee, Anthony G Christodoulou, Yibin Xie, Toshiro Shinke
BACKGROUND: High-intensity plaque (HIP) on magnetic resonance imaging (MRI) has been documented as a powerful predictor of periprocedural myocardial injury (PMI) following percutaneous coronary intervention (PCI). Despite the recent proposal of three-dimensional HIP quantification to enhance the predictive capability, the conventional pulse sequence, which necessitates the separate acquisition of anatomical reference images, hinders accurate three-dimensional segmentation along the coronary vasculature...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#24
JOURNAL ARTICLE
Andrew Tyler, Li Huang, Karl Kunze, Radhouene Neji, Ronald Mooiweer, Charlotte Rogers, Pier Giorgio Masci, Sébastien Roujol
BACKGROUND: Myocardial quantitative susceptibility mapping (QSM) may offer better specificity to iron than conventional T2 * imaging in the assessment of cardiac diseases, including intra-myocardial haemorrhage. However, the precision and repeatability of cardiac QSM has not yet been characterized. The aim of this study is to characterize these key metrics in a healthy volunteer cohort and show the feasibility of the method in patients. METHODS: Free breathing respiratory-navigated multi-echo 3D gradient echo (GRE) images were acquired, from which QSM maps were reconstructed using the MEDI toolbox...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#25
REVIEW
Francisco Contijoch, Volker Rasche, Nicole Seiberlich, Dana C Peters
Cardiac Magnetic Resonance (CMR) protocols can be lengthy and complex, which has driven the research community to develop new technologies to make these protocols more efficient and patient-friendly. Two different approaches to improving CMR have been proposed, specifically "all-in-one" CMR, where several contrasts and/or motion states are acquired simultaneously, and "real-time" CMR, in which the examination is accelerated to avoid the need for breathholding and/or cardiac gating. The goal of this two-part manuscript is to describe these two different types of emerging rapid CMR protocols...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#26
REVIEW
Anthony G Christodoulou, Gastao Cruz, Ayda Arami, Sebastian Weingärtner, Jessica Artico, Dana Peters, Nicole Seiberlich
Cardiac Magnetic Resonance (CMR) protocols can be lengthy and complex, which has driven the research community to develop new technologies to make these protocols more efficient and patient-friendly. Two different approaches to improving CMR have been proposed, specifically "all-in-one" CMR, where several contrasts and/or motion states are acquired simultaneously, and "real-time" CMR, in which the examination is accelerated to avoid the need for breathholding and/or cardiac gating. The goal of this two-part manuscript is to describe these two different types of emerging rapid CMR...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#27
JOURNAL ARTICLE
Yuanwei Xu, Yangjie Li, Shiqian Wang, Ke Wan, Yinxi Tan, Weihao Li, Jie Wang, Jiajun Guo, Saeed Ghaithan, Wei Cheng, Jiayu Sun, Qing Zhang, Yuchi Han, Yucheng Chen
BACKGROUND: The prognostic value of follow-up cardiac magnetic resonance (CMR) in dilated cardiomyopathy (DCM) patients is unclear. We aimed to investigate the prognostic value of cardiac function, structure, and tissue characteristics at mid-term CMR follow-up. METHODS: The study population was a prospectively enrolled cohort of DCM patients who underwent guideline-directed medical therapy (GDMT) with baseline and follow-up CMR, which included measurement of biventricular volume and ejection fraction, late gadolinium enhancement, native T1, native T2, and extracellular volume...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#28
JOURNAL ARTICLE
Ivan Lechner, Martin Reindl, Fritz Oberhollenzer, Christina Tiller, Magdalena Holzknecht, Priscilla Fink, Thomas Kremser, Paolo Bonatti, Felix Troger, Benjamin Henninger, Agnes Mayr, Axel Bauer, Bernhard Metzler, Sebastian J Reinstadler
BACKGROUND: Dysglycaemia increases the risk of myocardial infarction and subsequent recurrent cardiovascular events. However, the role of dysglycaemia in ischemia/reperfusion injury with development of irreversible myocardial tissue alterations remains poorly understood. In this study we aimed to investigate the association of ongoing dysglycaemia with persistence of infarct core iron and their longitudinal changes over time in patients undergoing primary percutaneous coronary intervention (PCI) for acute ST-segment elevation myocardial infarction (STEMI)...
January 16, 2024: Journal of Cardiovascular Magnetic Resonance
#29
JOURNAL ARTICLE
Daniel Kim, Jeremy D Collins, James A White, Kate Hanneman, Daniel C Lee, Amit R Patel, Peng Hu, Harold Litt, Jonathan W Weinsaft, Rachel Davids, Kanae Mukai, Ming-Yen Ng, Julian A Luetkens, Ariel Roguin, Carlos E Rochitte, Pamela K Woodard, Charlotte Manisty, Karolina M Zareba, Lluis Mont, Frank Bogun, Daniel B Ennis, Saman Nazarian, Gregory Webster, Jadranka Stojanovska
Cardiovascular magnetic resonance (CMR) is a proven imaging modality for informing diagnosis and prognosis, guiding therapeutic decisions, and risk stratifying surgical intervention. Patients with a cardiac implantable electronic device (CIED) would be expected to derive particular benefit from CMR given high prevalence of cardiomyopathy and arrhythmia. While several guidelines have been published over the last 16 years, it is important to recognize that both the CIED and CMR technologies, as well as our knowledge in MR safety, have evolved rapidly during that period...
January 12, 2024: Journal of Cardiovascular Magnetic Resonance
#30
JOURNAL ARTICLE
Kelly S Parke, Emer M Brady, Aseel Alfuhied, Rishabh S Motiwale, Cameron S Razieh, Anvesha Singh, Jayanth R Arnold, Matthew Pm Graham-Brown, Joanna M Bilak, Sarah L Ayton, Abhishek Dattani, Jian L Yeo, Gerry P McCann, Gaurav S Gulsin
BACKGROUND: Echocardiographic studies indicate South Asian people have smaller ventricular volumes, lower mass and more concentric remodelling than White European people, but there are no data using cardiac MRI (CMR). We aimed to compare CMR quantified cardiac structure and function in White European and South Asian people. METHODS: Healthy White European and South Asian participants in the UK Biobank Imaging CMR sub-study were identified by excluding those with a history of cardiovascular disease, hypertension, obesity or diabetes...
January 11, 2024: Journal of Cardiovascular Magnetic Resonance
#31
JOURNAL ARTICLE
Behzad Ebrahimi, Deep Gandhi, Mina H Alsaeedi, Lilach O Lerman
BACKGROUND: Percutaneous-transluminal renal angioplasty (PTRA) and stenting aim to halt the progression of kidney disease in patients with renal artery stenosis (RAS), but its outcome is often suboptimal. We hypothesized that a model incorporating markers of renal function and oxygenation extracted using radiomics analysis of blood oxygenation-level dependent (BOLD)-MRI images may predict renal response to PTRA in swine RAS. MATERIALS AND METHODS: Twenty domestic pigs with RAS were scanned with CT and BOLD MRI before and 4 weeks after PTRA...
January 11, 2024: Journal of Cardiovascular Magnetic Resonance
#32
JOURNAL ARTICLE
Kelsey Jurow, Kimberlee Gauvreau, Nicola Maschietto, Ashwin Prakash
BACKGROUND: Many patients with repaired tetralogy of Fallot require pulmonary valve replacement (PVR) due to significant pulmonary regurgitation (PR). Transcatheter PVR (TPVR) is an equally effective and less invasive alternative to surgical PVR but many native right ventricular outflow tracts (RVOTs) are too large for TPVR at time of referral. Understanding the rate of growth of the RVOT may help optimize timing of referral. This study aims to examine the longitudinal growth of the native RVOT over time in repaired tetralogy of Fallot (TOF)...
January 10, 2024: Journal of Cardiovascular Magnetic Resonance
#33
JOURNAL ARTICLE
Xiaowu Sun, Li-Hsin Cheng, Sven Plein, Pankaj Garg, Rob J van der Geest
BACKGROUND: 4D flow MRI enables assessment of cardiac function and intra-cardiac blood flow dynamics from a single acquisition. However, due to the poor contrast between the chambers and surrounding tissue, quantitative analysis relies on the segmentation derived from a registered cine MRI acquisition. This requires an additional acquisition and is prone to imperfect spatial and temporal inter-scan alignment. Therefore, in this work we developed and evaluated deep learning-based methods to segment the left ventricle (LV) from 4D flow MRI directly...
January 9, 2024: Journal of Cardiovascular Magnetic Resonance
#34
JOURNAL ARTICLE
Saad Razzaq, Leila Haririsanati, Katerina Eyre, Ria Garg, Michael Chetrit, Matthias G Friedrich
BACKGROUND: Cardiovascular Magnetic Resonance (CMR) native T1 and T2 mapping serve as robust, contrast-agent-free diagnostic tools, but hardware- and software-specific sources of variability limit the generalizability of data across CMR platforms, consequently limiting the interpretability of patient-specific parametric data. Z-scores are used to describe the relationship of observed values to the mean results as obtained in a sufficiently large normal sample. They have been successfully used to describe the severity of quantifiable abnormalities in medicine, specifically in children and adolescents...
January 9, 2024: Journal of Cardiovascular Magnetic Resonance
#35
JOURNAL ARTICLE
Kavitha Vimalesvaran, Sameer Zaman, James P Howard, Nikoo Aziminia, Marilena Giannoudi, Henry Procter, Marta Varela, Fatmatulzehra Uslu, Ben Ariff, Nick Linton, Eylem Levelt, Anil A Bharath, Graham D Cole
BACKGROUND: Cardiovascular magnetic resonance (CMR) imaging is an important tool for evaluating the severity of aortic stenosis (AS), co-existing aortic disease, and concurrent myocardial abnormalities. Acquiring this additional information requires protocol adaptations and additional scanner time, but is not necessary for the majority of patients who do not have AS. We observed that the relative signal intensity of blood in the ascending aorta on a balanced steady state free precession (bSSFP) 3-chamber cine was often reduced in those with significant aortic stenosis...
January 9, 2024: Journal of Cardiovascular Magnetic Resonance
#36
JOURNAL ARTICLE
Lydia Dux-Santoy, José F Rodríguez-Palomares, Gisela Teixidó-Turà, Juan Garrido-Oliver, Alejandro Carrasco-Poves, Alberto Morales-Galán, Aroa Ruiz-Muñoz, Guillem Casas, Filipa Valente, Laura Galian-Gay, Rubén Fernández-Galera, Ruperto Oliveró, Hug Cuéllar-Calabria, Albert Roque, Gemma Burcet, José A Barrabés, Ignacio Ferreira-González, Andrea Guala
BACKGROUND: The measurement of aortic dimensions and their evolution are key in the management of patients with aortic diseases. Manual assessment, the current guideline-recommended method and clinical standard, is subjective, poorly reproducible, and time-consuming, limiting the capacity to track aortic growth in everyday practice. Aortic geometry mapping (AGM) via image registration of serial computed tomography angiograms outperforms manual assessment, providing accurate and reproducible 3D maps of aortic diameter and growth rate...
January 9, 2024: Journal of Cardiovascular Magnetic Resonance
#37
JOURNAL ARTICLE
Elizabeth Hillier, Jason Covone, Matthias G Friedrich
BACKGROUND: Endothelial dysfunction and impaired oxygenation of the heart is a hallmark of several diseases, including coronary artery disease, hypertension, diabetes, and sleep apnea. Recent studies indicate that oxygenation-sensitive cardiovascular magnetic resonance (OS-CMR) imaging combined with breathing maneuvers may allow for assessing coronary vascular responsiveness as a marker for coronary vascular function in various clinical settings. However, despite the use of OS-CMR in evaluating tissue oxygenation, the reproducibility of these standardized, combined breathing maneuvers as a vasoactive stimulus has yet to be systematically assessed or validated...
December 27, 2023: Journal of Cardiovascular Magnetic Resonance
#38
REVIEW
Jason N Johnson, Hamidreza Pouraliakbar, Mohammad Mahdavi, Abdolmohammad Ranjbar, Kristopher Pfirman, Vishal Mehra, Shahzad Ahmed, Wejdan Ba-Atiyah, Mohammed Omar Galal, Riad Abou Zahr, Nasir Hussain, Raghu R Tadikamalla, Victor Farah, Sanja Dzelebdzic, Juan Carlos Muniz, Marc Lee, Jason Williams, Simon Lee, Sachin K Aggarwal, Daniel E Clark, Sean G Hughes, Madhusudan Ganigara, Mohamed Nagiub, Tarique Hussain, Cecilia Kwok, Han S Lim, Mark Nolan, Daniel S Kikuchi, Clive A Goulbourne, Anurag Sahu, Berge Sievers, Berk Sievers, Burkhard Sievers, Rimmy Garg, Carlos Requena Armas, Vijayasree Paleru, Ritu Agarwal, Rengarajan Rajagopal, Pranav Bhagirath, Rebecca Kozor, Ashish Aneja, Robert Tunks, Sylvia S M Chen
"Cases of SCMR" is a case series on the SCMR website (https://www.scmr.org) for the purpose of education. The cases reflect the clinical presentation, and the use of cardiovascular magnetic resonance (CMR) in the diagnosis and management of cardiovascular disease. The 2022 digital collection of cases are presented in this manuscript.
December 23, 2023: Journal of Cardiovascular Magnetic Resonance
#39
JOURNAL ARTICLE
Elsie T Nguyen, Karen Ordovas, Phil Herbst, Rebecca Kozor, Ming-Yen Ng, Luigi Natale, Robin Nijveldt, Rodrigo Salgado, Felipe Sanchez, Dipan Shah, Jadranka Stojanovska, Anne Marie Valente, Mark Westwood, Sven Plein
This position statement guides cardiovascular magnetic resonance (CMR) imaging program directors and learners on the key competencies required for Level II and III CMR practitioners, whether trainees come from a radiology or cardiology background. This document is built upon existing curricula and was created and vetted by an international panel of cardiologists and radiologists on behalf of the Society for Cardiovascular Magnetic Resonance (SCMR).
December 22, 2023: Journal of Cardiovascular Magnetic Resonance
#40
JOURNAL ARTICLE
Anastasia Fotaki, Kuberan Pushparajah, Christopher Rush, Camila Munoz, Carlos Velasco, Radhouene Neji, Karl P Kunze, René M Botnar, Claudia Prieto
BACKGROUND: Three dimensional, whole-heart (3DWH) MRI is an established non-invasive imaging modality in patients with congenital heart disease (CHD) for the diagnosis of cardiovascular morphology and for clinical decision making. Current techniques utilise diaphragmatic navigation (dNAV) for respiratory motion correction and gating and are frequently limited by long acquisition times. This study proposes and evaluates the diagnostic performance of a respiratory gating-free framework, which considers respiratory image-based navigation (iNAV), and highly accelerated variable density Cartesian sampling in concert with non-rigid motion correction and low-rank patch-based denoising (iNAV-3DWH-PROST)...
December 22, 2023: Journal of Cardiovascular Magnetic Resonance
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