Identification of cutaneous perforators for microvascular surgery using hyperspectral technique – A feasibility study on the antero-lateral thigh |
| |
| Institution: | 1. Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glueckstrasse 11, 91054, Erlangen, Germany;2. Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany;1. Department of Surgery, Medical School, Universidad Complutense de Madrid, Ramón y Cajal S/N, 28040, Madrid, Spain;2. Department of Oral and Maxillofacial Surgery, Hospital Clínico San Carlos, Profesor Martin Lago S/N, 28040, Madrid, Spain;1. BG-Kliniken Bergmannstrost, Postfach 200153, D-06002 Halle (Saale), Germany;2. Diaspective Vision GmbH, Strandstraße 15, D-18233 Am Salzhaff, Germany;1. Universidad de los Andes, Mons. Álvaro del Portillo, 12455, Las Condes, Santiago, Chile;2. Department of Periodontology, Case Western Reserve University, Cleveland, OH, USA;3. OREMA Clinic, Juan XXVIII, 6260, Vitacura, Santiago, Chile;4. American Dental Clinic, Estoril 50, Of. 212, Las Condes, Santiago, Chile;1. Department of Oral and Maxillofacial Surgery, Field of Maxillofacial Rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences, Japan;2. Department of Oral and Maxillofacial Surgery, Kagoshima University Hospital, Japan;3. Department of Dental and Oral Surgery, National Hospital Organization Kagoshima Medical Center, Japan |
| |
| Abstract: | Aim of the study was to compare perforator vessel location using color-coded Doppler ultrasound and hyperspectral imaging in the area of the antero-lateral thigh. In a cross-sectional case-control study, the bilateral antero-lateral thigh region was examined for perforator vessel location via color-coded Doppler ultrasound (control) and hyperspectral imaging (test). For hyperspectral imaging, all measurements were conducted without cooling (T0) and after 1 (T1), 2 (T2) and 3 min (T3) of cooling. Additionally, in the reperfusion period after cooling, hyperspectral imaging was conducted at 1, 2 and 3 min (T4/T5/T6). Results from color-coded Doppler ultrasound and hyperspectral imaging were matched at all time points (T0–T6). In total, 71/73 perforator vessel locations could be matched (sensitivity: 97%). Matching of color-coded Doppler ultrasound and hyperspectral imaging was significantly influenced by the cooling protocol and the highest matching values were seen at T3 (3 min cooling; 60 perforator vessels) and T4 (3 min cooling & 1 min reperfusion; 62 perforator vessels) without significant differences (sensitivity 98%; p = 0.9). There were significant differences between T4 and T0, T1 (both p < 0.001), T5 (p = 0.045) and T6 (p = 0.012). For clinical proof of concept, a patient case using a free antero-lateral thigh flap for reconstruction of a facial defect after perforator vessel identification via color-coded Doppler ultrasound and hyperspectral imaging (3 min cooling & 1 min reperfusion) was carried out successfully. In conclusion, hyperspectral imaging potentially offers an additional opportunity for non-invasive, user-independent perforator-site assessment if prior cooling of the site is conducted. |
| |
| Keywords: | Cutaneous perforator Microvascular surgery Hyperspectral imaging Perforator flap Flap assessment |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
