Ultrahigh-Resolution Computed Tomography Improves Preoperative Computed Tomography Angiography for Deep Inferior...

Area of Science:

• Radiology
• Medical Imaging
• Vascular Imaging

Background:

• Deep inferior epigastric artery perforator (DIEP) flap surgery is a common procedure for breast reconstruction.
• Accurate preoperative imaging of DIEP anatomy is crucial for surgical planning and outcomes.
• Conventional multidetector CT angiography (MDCT) is widely used, but its resolution may limit visualization of smaller vessels.

Purpose of the Study:

• To compare the imaging quality of computed tomography (CT) angiography (CTA) for deep inferior epigastric artery perforator (DIEP) flaps using ultrahigh-resolution CT (UHRCT) versus conventional multidetector CT (MDCT).

Main Methods:

• A retrospective study included 20 patients who underwent DIEP flap CTA using both UHRCT and MDCT.
• CT values were measured in major and peripheral vessels, including the thoracic aorta, abdominal aorta, common iliac artery, external iliac artery, internal thoracic artery, and deep inferior epigastric artery (DIEP).

Main Results:

• No significant differences in CT values were observed between UHRCT and MDCT for major vessels.
• UHRCT demonstrated significantly higher CT values in peripheral vessels compared to MDCT (P < 0.05).
• The median CT values for the DIEP were approximately threefold higher with UHRCT than with MDCT (P < 0.001).

Conclusions:

• Ultrahigh-resolution CT (UHRCT) provides superior CT angiography (CTA) imaging of the deep inferior epigastric artery perforator (DIEP) compared to multidetector CT (MDCT).
• The enhanced visualization of DIEP vessels with UHRCT may improve surgical planning and outcomes in DIEP flap procedures.