Intervendor Differences in the Accuracy of Detecting Regional Functional Abnormalities
| Autor: | Oana Mirea, Efstathios D. Pagourelias, Jurgen Duchenne, Jan Bogaert, James D. Thomas, Luigi P. Badano, Jens-Uwe Voigt, Jamie Hamilton, Stefano Pedri, Peter Lysyansky, Gunnar Hansen, Yasuhiro Ito, Tomoaki Chono, Jane Vogel, David Prater, Sungwook Park, Jin Yong Lee, Helene Houle, Bogdan Georgescu, Rolf Baumann, Bernhard Mumm, Yashuhiko Abe, Willem Gorissen |
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| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Strain (chemistry) business.industry Task force Ultrasound Speckle tracking echocardiography 030204 cardiovascular system & hematology medicine.disease 030218 nuclear medicine & medical imaging 03 medical and health sciences Speckle pattern 0302 clinical medicine Internal medicine medicine Cardiology Late gadolinium enhancement Radiology Nuclear Medicine and imaging Myocardial infarction Abnormality Cardiology and Cardiovascular Medicine business |
| Zdroj: | JACC: Cardiovascular Imaging. 11:25-34 |
| ISSN: | 1936-878X |
| DOI: | 10.1016/j.jcmg.2017.02.014 |
| Popis: | Objectives The purpose of this study was to compare the accuracy of vendor-specific and independent strain analysis tools to detect regional myocardial function abnormality in a clinical setting. Background Speckle tracking echocardiography has been considered a promising tool for the quantitative assessment of regional myocardial function. However, the potential differences among speckle tracking software with regard to their accuracy in identifying regional abnormality has not been studied extensively. Methods Sixty-three subjects (5 healthy volunteers and 58 patients) were examined with 7 different ultrasound machines during 5 days. All patients had experienced a previous myocardial infarction, which was characterized by cardiac magnetic resonance with late gadolinium enhancement. Segmental peak systolic (PS), end-systolic (ES) and post-systolic strain (PSS) measurements were obtained with 6 vendor-specific software tools and 2 independent strain analysis tools. Strain parameters were compared between fully scarred and scar-free segments. Receiver-operating characteristic curves testing the ability of strain parameters and derived indexes to discriminate between these segments were compared among vendors. Results The average strain values calculated for normal segments ranged from −15.1% to −20.7% for PS, −14.9% to −20.6% for ES, and −16.1% to −21.4% for PSS. Significantly lower values of strain (p Conclusions The accuracy of identifying regional abnormality differs significantly among vendors. |
| Databáze: | OpenAIRE |
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