Monday, December 2 | 8:10 a.m.-8:20 a.m. | M1-SSIR01-2 | Room E353A
Digital variance angiography demonstrates a significant image quality advantage and enables radiation dose reduction in prostatic artery embolization (PAE), according to a study in this session. The finding is from a prospective trial and addresses critical safety considerations in PAE procedures.
Presenter Leona Alizadeh, MD, of Frankfurt University Hospital, and colleagues evaluated the performance of digital variance angiography (DVA) in 53 patients (age range 49 to 87 years old) undergoing PAE for benign prostatic hyperplasia. They compared contrast-to-noise ratios between standard digital subtraction angiography (DSA) and DVA pairs using regions of interest across standard and optimized low-dose protocols. Three experienced interventional radiologists evaluated clinical image quality in a randomized blinded trial using a 5-point Likert scale based on clinically relevant criteria.
Optimized low-dose protocols resulted in a -27% reduction in radiation dose, with DVA images providing a 1.54 times higher contrast-to-noise ratio than DSA, according to the findings. The visual evaluation indicated that DVA videos provided similar to higher image quality than the full dose DSA images, since in 72.9% of comparisons evaluators preferred DVA over DSA. The interrater agreement was 88.2% and Fleiss’s kappa was 0.61 (p < 0.001), the group noted.
“DVA enhances safety and procedural confidence in PAE interventions by minimizing image noise and improving the visualization of intricate vascular structures,” according to the researchers.
This Monday morning session also covers AI solutions and innovations in peri-interventional and includes a keynote presentation by Benedikt Michael Schaarschmidt, MD, of University Hospital Essen in Germany. Grab a coffee and check it out to learn more.
