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Augmented Reality Microsurgical Planning with a Smartphone (ARM-PS): A dissection route map in your pocket.

INTRODUCTION: Perioperative microsurgical planning increases the likelihood of successful results. Augmented reality (AR) is the addition of artificial information to allow the user to perform tasks more efficiently. The aim of our study is to report the use of AR for microsurgical planning with a smartphone (ARM-PS) as a dissection route map.

PATIENTS AND METHODS: AR was used for superficial circumflex iliac artery perforator (SCIP) flap planning. Three-dimensional (3D) reconstruction images of the inguinal and lower abdomen vascular anatomy were obtained by computed tomography angiography. These 3D images were imported to a smartphone and an AR app was used to superimpose them with the camera. The drawings performed with ARM-PS were correlated with handheld Doppler and intraoperative findings.

RESULTS: The correlation of ARM-PS drawings with handheld Doppler results was 100% for superficial inferior epigastric artery (SIEA) and superficial and deep branches of SCIP in 60 inguinal areas studied. Intraoperative findings matched perfectly in all 30 cases with ARM-PS drawings for the location of the mentioned vessels and lymph nodes. Flap harvest time decreased in 20% compared with our traditional timing.

CONCLUSIONS: ARM-PS is an easy, noninvasive, and accurate method that provides a dissection route map, thereby standardizing flap harvesting, and shows a perfect correlation with intraoperative findings. It reduces operating time and may improve operative results, thus decreasing donor site morbidity.

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