A comparison between the CS-TOF and the CTA/DSA for WEB device management.

Area of Science:

• Neuroimaging
• Interventional Neuroradiology
• Vascular Imaging

Background:

• The WEB device is used for endovascular embolization of intracranial aneurysms.
• Optimal imaging modalities for WEB device management and follow-up are crucial.
• Three-dimensional compressed sensing time of flight MR angiography (3D-CS-TOF) has not been previously evaluated for WEB device management.

Purpose of the Study:

• To evaluate the efficacy of 3-tesla 3D-CS-TOF in the management and follow-up of WEB device implantations.
• To assess the role of 3D-CS-TOF in visualizing aneurysms and parent vessels post-WEB device placement.

Main Methods:

• Retrospective analysis of 73 aneurysms in 69 patients treated with the WEB device.
• Comparison of morphological parameters and embolization results using 3D-CS-TOF, CTA, and DSA.
• Assessment of inter- and intra-reader agreement for aneurysm size measurements.

Main Results:

• High occlusion rates (83.6%) were observed, with low rates of neck remnant (9.6%) and recurrence (6.8%).
• Aneurysm size, patient age, and vessel tortuosity negatively impacted visibility on 3D-CS-TOF.
• 3D-CS-TOF findings demonstrated perfect agreement with DSA and CTA, indicating high diagnostic accuracy.

Conclusions:

• 3D-CS-TOF is a reliable, fast, and easy imaging method for managing WEB-assisted embolizations.
• This technique can serve as an effective alternative for follow-up imaging after WEB device implantation.
• Further studies can confirm the long-term efficacy and utility of 3D-CS-TOF in this context.