Reliability of Evaluating Achilles Tendon Vascularization Assessed With Doppler Ultrasound Advanced Dynamic Flow
| Autor: | Lucie Risch, Tilman Engel, Janin Messerschmidt, Frank Mayer, Michael Cassel, Monique Wochatz |
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| Rok vydání: | 2017 |
| Předmět: |
030222 orthopedics
medicine.medical_specialty Achilles tendon Radiological and Ultrasound Technology business.industry Intraclass correlation Concordance B coefficient Ultrasound 030229 sport sciences Surgery 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Standard error medicine Radiology Nuclear Medicine and imaging Doppler ultrasound Nuclear medicine business Reliability (statistics) |
| Zdroj: | Journal of Ultrasound in Medicine. 37:737-744 |
| ISSN: | 0278-4297 |
| DOI: | 10.1002/jum.14414 |
| Popis: | Objectives The reliability of quantifying intratendinous vascularization by high-sensitivity Doppler ultrasound advanced dynamic flow has not been examined yet. Therefore, this study aimed to investigate the intraobserver and interobserver reliability of evaluating Achilles tendon vascularization by advanced dynamic flow using established scoring systems. Methods Three investigators evaluated vascularization in 67 recordings in a test-retest design, applying the Ohberg score, a modified Ohberg score, and a counting score. Intraobserver and interobserver agreement for the Ohberg score and modified Ohberg score was analyzed by the Cohen κ and Fleiss κ coefficients (absolute), Kendall τ b coefficient, and Kendall coefficient of concordance (W; relative). The reliability of the counting score was analyzed by intraclass correlation coefficients (ICC) 2.1 and 3.1, the standard error of measurement (SEM), and Bland-Altman analysis (bias and limits of agreement [LoA]). Results Intraobserver and interobserver agreement (absolute/relative) ranged from 0.61 to 0.87/0.87 to 0.95 and 0.11 to 0.66/0.76 to 0.89 for the Ohberg score and from 0.81 to 0.87/0.92 to 0.95 and 0.64 to 0.80/0.88 to 0.93 for the modified Ohberg score, respectively. The counting score revealed an intraobserver ICC of 0.94 to 0.97 (SEM, 1.0–1.5; bias, –1; and LoA, 3–4 vessels). The interobserver ICC for the counting score ranged from 0.91 to 0.98 (SEM, 1.0–1.9; bias, 0; and LoA, 3–5 vessels). Conclusions The modified Ohberg score and counting score showed excellent reliability and seem convenient for research and clinical practice. The Ohberg score revealed decent intraobserver but unexpected low interobserver reliability and therefore cannot be recommended. |
| Databáze: | OpenAIRE |
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