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Imaging in Propeller Flap Surgery.

Shimpei Ono¹, Hiroyuki Ohi², Rei Ogawa¹

¹Department of Plastic, Reconstructive, and Aesthetic Surgery, Nippon Medical School Hospital, Tokyo, Japan.

Seminars in Plastic Surgery

|October 12, 2020

Summary

This summary is machine-generated.

Accurate preoperative mapping of perforators is crucial for safe propeller flap surgery. Several imaging techniques exist, each with unique benefits and limitations for visualizing these critical blood vessels.

Keywords:

CT angiography acoustic Doppler sonography color duplex sonography

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Area of Science:

Plastic Surgery
Medical Imaging
Vascular Anatomy

Background:

Propeller flaps rely on a single perforator, making intraoperative design changes difficult if the vessel is not as expected.
Accurate preoperative identification of perforator vessels is essential for successful propeller flap surgery.

Purpose of the Study:

To review and compare various preoperative imaging modalities for perforator mapping in propeller flap planning.
To discuss the advantages and disadvantages of each technique for clinical application.

Main Methods:

Review of existing literature on preoperative perforator mapping techniques.
Comparison of handheld acoustic Doppler sonography (ADS), color duplex sonography (CDS), perforator computed tomographic angiography (P-CTA), and magnetic resonance angiography (MRA).

Main Results:

Perforator computed tomographic angiography (P-CTA) is the gold standard for detailed 3D anatomical visualization.
Handheld acoustic Doppler sonography (ADS) is widely used due to cost and ease of use, despite false positives.
Color duplex sonography (CDS) offers hemodynamic data and is suitable for patients limiting radiation/contrast.
Magnetic resonance angiography (MRA) has limitations with small perforators but is improving and offers radiation-free imaging.

Conclusions:

The choice of imaging modality for perforator mapping depends on specific clinical needs, balancing accuracy, cost, and patient factors.
While P-CTA is currently definitive, advancements in MRA may offer a comparable, radiation-free alternative in the future.