Non-Radiographic Severity Measurement of Pectus Excavatum.

Autor: Bliss DP Jr; Division of Pediatric Surgery/Department of Surgery, University of Colorado School of Medicine, Children's Hospital Colorado, Colorado Springs, Colorado. Electronic address: david.bliss@childrenscolorado.org., Vaughan NA; Baylor University Medical Center, Dallas, Texas., Walk RM; Brooke Army Medical Center/US Army Medical Corps, San Antonio, Texas., Naiditch JA; Dell Children's Medical Center of Central Texas, Austin, Texas., Kane AA; Division of Plastic Surgery, UT Southwestern Medical Center, Dallas, Texas., Hallac RR; Analytical Imaging and Modeling Center, Children's Medical Center, Dallas, Texas.
Jazyk: angličtina
Zdroj: The Journal of surgical research [J Surg Res] 2019 Jan; Vol. 233, pp. 376-380. Date of Electronic Publication: 2018 Sep 10.
DOI: 10.1016/j.jss.2018.08.017
Abstrakt: Background: To avoid the radiation exposure of CT imaging and the expense of CT or MRI studies, we sought to develop a non-radiographic severity measurement of pectus excavatum based on 3D photogrammetric imaging.
Methods: Over 28 mo, ten consecutive patient volunteers with pectus excavatum underwent 3D stereophotogrammetric imaging. The surface width to surface depth ratio (Surface Lengths Pectus Index), the chest deformity's surface area to total chest surface area (Pectus Surface Area Ratio), and the chest deformity's volume to total chest volume (Pectus Volume Ratio) were calculated. Simple linear regression analysis compared the Surface Lengths Pectus Index, Pectus Surface Area Ratio, and Pectus Volume Ratio calculations each to the corresponding known CT pectus index.
Results: The correlation between CT pectus index versus Surface Lengths Pectus Index yielded an R-squared value of 0.7637 and a P value of 0.0013. A CT pectus index of 3.4 or greater (eight patients) corresponded to a Surface Lengths Pectus Index of 1.86 or greater (six patients). The CT pectus index versus Pectus Surface Area Ratio (R-squared = 0.4627, P = 0.0305) and the CT pectus index versus the Pectus Volume Ratio (R-squared = 0.3048, P = 0.0990) demonstrated less correlation.
Conclusion: Surface Lengths Pectus Index corresponds to the CT pectus index and may be adequate to determine severity of pectus excavatum in some patients.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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