SuperDyna: Unlocking the Potential of Post-Treatment Device Evaluation

Area of Science:

• Medical Imaging
• Interventional Neuroradiology
• Vascular Imaging

Background:

• Current imaging methods for post-endovascular procedure assessment have limitations in device representation and vessel delineation.
• Combining cone-beam computed tomography (CBCT) with 3D digital subtraction angiography (3D-DSA) offers potential for simultaneous visualization of devices and vessels.
• The novel "SuperDyna" technique aims to overcome these limitations by fusing CBCT and 3D-DSA data.

Purpose of the Study:

• To review the utility and outcomes of the SuperDyna technique for post-endovascular procedure evaluation.
• To assess the impact of SuperDyna on diagnostic accuracy and procedural planning.
• To evaluate the safety profile, including renal function and radiation dose, associated with SuperDyna.

Main Methods:

• Retrospective analysis of patients undergoing endovascular procedures between February 2022 and January 2023.
• Inclusion criteria: patients with post-treatment non-contrast CBCT and 3D-DSA.
• Data collected: pre-/post-blood urea nitrogen, creatinine, radiation dose, and intervention type.

Main Results:

• SuperDyna was performed in 52 patients (2.6% of 1935), with 72% being women aged 60 years median.
• Most common indication: post-flow diversion assessment (n=39).
• No significant changes in renal function observed. Average radiation dose was 2.8 Gy, with 3D-DSA contributing 4% dose and ~20 mL contrast.

Conclusions:

• SuperDyna is an effective fusion imaging method combining CBCT and 3D-DSA for intracranial vasculature assessment.
• It provides comprehensive evaluation of device position and apposition post-treatment.
• Aids in refining treatment planning and patient education for endovascular interventions.