Clinical validation of three-dimensional ultrasound for abdominal aortic aneurysm
| Autor: | Qasam M. Ghulam, San-San Ou, Sashi Kilaru, Henrik Sillesen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Male
Single visit Intraclass correlation 030204 cardiovascular system & hematology Asymptomatic 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Maximum diameter Predictive Value of Tests medicine Humans Prospective Studies 030212 general & internal medicine Aged Ultrasonography Aged 80 and over Observer Variation Reproducibility Three dimensional ultrasound business.industry Ultrasound Reproducibility of Results medicine.disease Abdominal aortic aneurysm Asymptomatic Diseases Female Surgery medicine.symptom Cardiology and Cardiovascular Medicine Nuclear medicine business Aortic Aneurysm Abdominal/diagnostic imaging Aortic Aneurysm Abdominal |
| Zdroj: | Ghulam, Q M, Kilaru, S, Ou, S-S & Sillesen, H 2020, ' Clinical validation of three-dimensional ultrasound for abdominal aortic aneurysm ', Journal of Vascular Surgery, vol. 71, no. 1, pp. 180-188 . https://doi.org/10.1016/j.jvs.2019.03.066 |
| ISSN: | 0741-5214 |
| DOI: | 10.1016/j.jvs.2019.03.066 |
| Popis: | OBJECTIVE: Three-dimensional ultrasound (3D-US) examination is a relatively new modality that can be used for abdominal aortic aneurysm (AAA) surveillance, and may offer improved reproducibility over conventional two-dimensional ultrasound (2D-US) examination. The aim of this study was to evaluate the interoperator reproducibility of maximum anterior-to-posterior diameter by nonphysician ultrasound technicians in a typical vascular laboratory setting, on patients with infrarenal AAAs using 3D-US and 2D-US examination.METHODS: A total of 134 consecutive patients with asymptomatic infrarenal AAAs were screened. Of the 134 patients, 28 (21%) were screen failures. From the remaining 106 patients, 3 (2.8%) had missing data and 13 (12.3%) had technically unacceptable image quality. As a result, 90 patients were included for final analysis. Ultrasound image acquisitions were performed during the single visit. The 2D-US images were evaluated at the time of examination by the respective ultrasound technicians who acquired them. All 3D-US images were evaluated offline by both ultrasound technicians after a wash-out period of at least 6 weeks.RESULTS: Excellent interoperator reproducibility was observed for measuring maximum diameter using 3D-US (intraclass correlation coefficient, 0.97), and good agreement among ultrasound technicians (mean difference, -0.08 mm; limits of agreement, -3.17; 3.00 mm). When using 3D-US examination, 74 of the 90 patients (82%) were estimated within 2 mm of interoperator variability. Of 90 patients, 52 (58%) were estimated to be within the same variability by 2D-US examination. Estimating AAA diameter using 3D-US was superior to 2D-US with respect to interoperator reproducibility.CONCLUSIONS: Both 3D-US and 2D-US examination demonstrated good reproducibility among two vascular ultrasound technicians with superior agreement from 3D-US examination. The present results support the broader use of 3D-US in standard AAA surveillance programs. |
| Databáze: | OpenAIRE |
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