Improved multi-station peripheral MR angiography with a dedicated vascular coil

Area of Science:

• Medical Imaging
• Vascular Surgery
• Biomedical Engineering

Background:

• Assessing peripheral arterial disease often requires detailed imaging of small vessels.
• Surgical grafting for peripheral arterial disease necessitates clear visualization of infrapopliteal arteries.
• Maximizing signal-to-noise ratio (SNR) is critical for accurate vascular assessment.

Purpose of the Study:

• To evaluate the performance of a dedicated peripheral vascular coil compared to a standard body coil.
• To determine if the dedicated coil improves the delineation of small branch vessels in the peripheral arterial system.
• To assess the impact of the coil on signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) for vascular imaging.

Main Methods:

• A dedicated peripheral vascular coil and a body coil were used for imaging in four subjects.
• Digital subtraction angiography (DSA) served as the reference standard for comparison.
• Quantitative analysis of SNR and CNR was performed for both coils.

Main Results:

• The dedicated peripheral vascular coil demonstrated a mean SNR and CNR improvement of 398% compared to the body coil.
• This significant enhancement in SNR and CNR allowed for improved delineation of infrapopliteal arterial morphology.
• The findings suggest superior performance of the dedicated coil for peripheral vascular imaging.

Conclusions:

• A dedicated peripheral vascular coil offers substantial improvements in image quality for peripheral arterial system assessment.
• Enhanced SNR and CNR provided by the dedicated coil facilitate better visualization of small branch vessels.
• The dedicated coil is a valuable tool for pre-surgical planning in patients requiring peripheral vascular grafting.