Browsing by Author "Lee, Simon"

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    Design and implementation of multicenter pediatric and congenital studies with cardiovascular magnetic resonance: Big data in smaller bodies
    (Elsevier, 2024) DiLorenzo, Michael P.; Lee, Simon; Rathod, Rahul H.; Raimondi, Francesca; Farooqi, Kanwal M.; Jain, Supriya S.; Samyn, Margaret M.; Johnson, Tiffanie R.; Olivieri, Laura J.; Fogel, Mark A.; Lai, Wyman W.; Renella, Pierangelo; Powell, Andrew J.; Buddhe, Sujatha; Stafford, Caitlin; Johnson, Jason N.; Helbing, Willem A.; Pushparajah, Kuberan; Voges, Inga; Muthurangu, Vivek; Miles, Kimberley G.; Greil, Gerald; McMahon, Colin J.; Slesnick, Timothy C.; Fonseca, Brian M.; Morris, Shaine A.; Soslow, Jonathan H.; Grosse-Wortmann, Lars; Beroukhim, Rebecca S.; Grotenhuis, Heynric B.; Pediatrics, School of Medicine
    Cardiovascular magnetic resonance (CMR) has become the reference standard for quantitative and qualitative assessment of ventricular function, blood flow, and myocardial tissue characterization. There is a preponderance of large CMR studies and registries in adults; However, similarly powered studies are lacking for the pediatric and congenital heart disease (PCHD) population. To date, most CMR studies in children are limited to small single or multicenter studies, thereby limiting the conclusions that can be drawn. Within the PCHD CMR community, a collaborative effort has been successfully employed to recognize knowledge gaps with the aim to embolden the development and initiation of high-quality, large-scale multicenter research. In this publication, we highlight the underlying challenges and provide a practical guide toward the development of larger, multicenter initiatives focusing on PCHD populations, which can serve as a model for future multicenter efforts.
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    The Society for Cardiovascular Magnetic Resonance Registry at 150,000
    (Elsevier, 2024-07-04) Tong, Matthew S.; Slivnick, Jeremy A.; Sharif, Behzad; Kim, Han W.; Young, Alistair A.; Sierra-Galan, Lilia M.; Mukai, Kanae; Farzaneh-Far, Afshin; Al-Kindi, Sadeer; Chan, Angel T.; Dibu, George; Elliott, Michael D.; Ferreira, Vanessa M.; Grizzard, John; Kelle, Sebastian; Lee, Simon; Malahfji, Maan; Petersen, Steffen E.; Polsani, Venkateshwar; Toro-Salazar, Olga H.; Shaikh, Kamran A.; Shenoy, Chetan; Srichai, Monvadi B.; Stojanovska, Jadranka; Tao, Qian; Wei, Janet; Weinsaft, Jonathan W.; Wince, W. Benjamin; Chudgar, Priya D.; Judd, Matthew; Judd, Robert M.; Shah, Dipan J.; Simonetti, Orlando P.; Medicine, School of Medicine
    Background: Cardiovascular magnetic resonance (CMR) is increasingly utilized to evaluate expanding cardiovascular conditions. The Society for Cardiovascular Magnetic Resonance (SCMR) Registry is a central repository for real-world clinical data to support cardiovascular research, including those relating to outcomes, quality improvement, and machine learning. The SCMR Registry is built on a regulatory-compliant, cloud-based infrastructure that houses searchable content and Digital Imaging and Communications in Medicine images. The goal of this study is to summarize the status of the SCMR Registry at 150,000 exams. Methods: The processes for data security, data submission, and research access are outlined. We interrogated the Registry and presented a summary of its contents. Results: Data were compiled from 154,458 CMR scans across 20 United States sites, containing 299,622,066 total images (∼100 terabytes of storage). Across reported values, the human subjects had an average age of 58 years (range 1 month to >90 years old), were 44% (63,070/145,275) female, 72% (69,766/98,008) Caucasian, and had a mortality rate of 8% (9,962/132,979). The most common indication was cardiomyopathy (35,369/131,581, 27%), and most frequently used current procedural terminology code was 75561 (57,195/162,901, 35%). Macrocyclic gadolinium-based contrast agents represented 89% (83,089/93,884) of contrast utilization after 2015. Short-axis cines were performed in 99% (76,859/77,871) of tagged scans, short-axis late gadolinium enhancement (LGE) in 66% (51,591/77,871), and stress perfusion sequences in 30% (23,241/77,871). Mortality data demonstrated increased mortality in patients with left ventricular ejection fraction <35%, the presence of wall motion abnormalities, stress perfusion defects, and infarct LGE, compared to those without these markers. There were 456,678 patient-years of all-cause mortality follow-up, with a median follow-up time of 3.6 years. Conclusion: The vision of the SCMR Registry is to promote evidence-based utilization of CMR through a collaborative effort by providing a web mechanism for centers to securely upload de-identified data and images for research, education, and quality control. The Registry quantifies changing practice over time and supports large-scale real-world multicenter observational studies of prognostic utility.