Kehrer, Andreas and Lonic, Daniel and Heidekrueger, Paul and Bosselmann, Talia and Taeger, Christian D. and Philipp, Lamby and Kehrer, Michael and Jung, Ernst Michael and Prantl, Lukas and Platz Batista da Silva, Natascha (2020) Feasibility study of preoperative microvessel evaluation and characterization in perforator flaps using various modes of color-coded duplex sonography (CCDS). MICROSURGERY, 40 (7). pp. 750-759. ISSN 0738-1085, 1098-2752
Full text not available from this repository. (Request a copy)Abstract
Background Color-coded duplex sonography (CCDS) is useful for perforator flap design showing the highest sensitivity in identifying microvessels. This prospective study evaluates the feasibility of different ultrasound (US) modes applied by the microsurgeon in daily practice suggesting quantifiable reference values. Methods Twenty-four patients aged between 17 and 68 years (mean 43.3 +/- 14.2 years) with 18 anterolateral thigh (ALT) and 6 superficial circumflex iliac artery (SCIP) flaps were included. Indications were traumatic (n= 12), infectious (n= 6), ischemic (n= 4), or tumor-associated defects (n= 2). Different US modes were evaluated regarding applicability using multifrequency linear probes (5-15 MHz). Vessels diameter, peak systolic velocity (PSV), end diastolic velocity (EDV), and resistance index (RI) were measured. Preoperative results were correlated to intraoperative findings. Results In the examined patient group with 24 perforator flaps a 100% correlation was seen when comparing perforators detected with CCDS/PD with intraoperative findings using optimized US settings. Sensitivity, PPV, and accuracy of CCDS were 100% respectively. Mean PSV of 16.99 +/- 6.07 cm/s, mean EDV of 5.01 +/- 1.84 cm/s and RI of 0.7 +/- 0.07 were measured in microvessels (PW-mode). CCDS proved to be superior compared to PD in correct diameter assessment showing a mean diameter of 1.65 +/- 0.45 mm, compared to PD-mode 1.31 +/- 0.24 mm. Mean PSV and EDV were higher in ALT than in SCIP flaps, RI was slightly higher in SCIP flaps (p > .05). There were no significant differences in size of different flaps' perforators (p > .05). Conclusion CCDS represents a highly valuable tool in the daily practice of free flap reconstructions using optimized low flow US settings and multifrequency linear probes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANTEROLATERAL THIGH FLAP; COMPUTED TOMOGRAPHIC ANGIOGRAPHY; ENHANCED ULTRASOUND CEUS; CUTANEOUS PERFORATORS; DOPPLER ULTRASOUND; ULTRASONOGRAPHY; ELEVATION; RECONSTRUCTION; ACCURACY; EFFICACY; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Plastische-, Hand- und Wiederherstellungschirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Mar 2021 12:36 |
| Last Modified: | 11 Mar 2021 12:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43796 |
Actions (login required)
 |
View Item |
