2023/12 - Quantitative Assessment of Angioplasty-Induced Vascular Inflammation with Cardiovascular Magnetic Resonance Imaging [Journal Club]-Journal Club Webinar

Video Transcription

Video Summary

The webinar opened the final 2023 JCMR Journal Club session, with CME instructions and discussion guidance for attendees. The main presentation, led by Dr. Florian Bodda and hosted by Dr. Ruud van Heeswijk, focused on using <strong>19F MRI with perfluorocarbon nanoemulsions</strong> to image <strong>vascular inflammation</strong>.

Bodda explained that inflammation is central to atherosclerosis, myocardial infarction, and vascular injury, and that current clinical risk stratification based on biomarkers like CRP is incomplete. His team’s approach uses <strong>perfluorooctyl bromide (PFOB)</strong>, a fluorine-rich, biologically inert compound taken up by monocytes and macrophages. These labeled inflammatory cells can then be detected by 19F MRI.

He presented preclinical pig data showing that the method works at clinical field strengths. In myocardial infarction and carotid artery injury models, 19F signal corresponded well with histologic macrophage infiltration, with stronger signal in more severely injured vessels. The technique could detect inflammation in vivo with about a 20-minute scan and showed good correlation with macrophage density.

In the Q&A, the speaker discussed translation to humans, scan time, imaging motion, injected volume, safety in reticuloendothelial organs, macrophage subtype detection, and the feasibility of future clinical coronary inflammation imaging. The session ended with closing remarks, CME reminders, and announcements about upcoming JCMR changes and future journal clubs.

Keywords

19F MRI

perfluorocarbon nanoemulsions

vascular inflammation

atherosclerosis

myocardial infarction

perfluorooctyl bromide

macrophages

clinical translation

JCMR Journal Club