Atherosclerosis imaging using 3D black blood TSE SPACE vs 2D TSE

Area of Science:

• Cardiovascular Magnetic Resonance Imaging
• Atherosclerosis Imaging
• Vascular Disease Assessment

Background:

• Atherosclerotic plaque evaluation is crucial for cardiovascular disease risk assessment.
• Magnetic resonance imaging (MRI) techniques are vital for non-invasive vascular imaging.
• Comparing advanced 3D MRI sequences with conventional 2D methods is essential for optimizing plaque characterization.

Purpose of the Study:

• To compare the efficacy of 3D Black Blood SPACE MRI versus 2D TSE sequences.
• To evaluate atherosclerotic plaque imaging across multiple vascular territories (carotid, aorta, femoral).
• To assess qualitative and quantitative image analysis agreement between the two MRI techniques.

Main Methods:

• 16 patients with cardiovascular or atherosclerotic disease risk underwent both 3D SPACE and 2D TSE MRI.
• Imaging was performed on carotid, aortic, and femoral arteries in a consolidated session.
• Qualitative scoring and quantitative morphometric measurements (vessel area, lumen area) were analyzed, with statistical agreement assessments.

Main Results:

• No significant qualitative differences were found for carotid and aortic imaging between 3D SPACE and 2D TSE.
• Significant qualitative differences were observed in femoral artery imaging, with 3D SPACE being suboptimal.
• Quantitative analysis showed higher mean total vessel area with 3D SPACE, but comparable lumen areas in carotids; significant overall correlation between techniques was noted.

Conclusions:

• 3D SPACE and 2D TSE techniques provide comparable qualitative and quantitative measurements for carotid and aortic plaque evaluation.
• 3D SPACE shows potential as a feasible MRI approach for cardiovascular patient assessment.
• Further optimization of 3D SPACE, particularly coil technology, may improve femoral artery imaging.