New quantitative method to diagnose coronary in-stent restenosis by 64-multislice computed tomography
| Autor: | Tomoko Nao, Masafumi Yano, Masunori Matsuzaki, Toshiro Miura, Masayuki Yoshimura, Jutaro Yamada, Naofumi Matsunaga, Tatsuhiro Fujimura, Yoshiteru Nakashima, Takayuki Okamura, Munemasa Okada |
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| Rok vydání: | 2015 |
| Předmět: |
Male
In-stent restenosis medicine.medical_specialty medicine.medical_treatment Coronary angiography Lumen (anatomy) Sensitivity and Specificity Coronary Restenosis Multidetector computed tomography Restenosis Predictive Value of Tests Internal medicine medicine Humans cardiovascular diseases Aged Computed tomography angiography medicine.diagnostic_test business.industry Coronary Stenosis Stent Multislice computed tomography Middle Aged medicine.disease Invasive coronary angiography medicine.anatomical_structure Cardiology Female Stents In stent restenosis Nuclear medicine business Cardiology and Cardiovascular Medicine Artery |
| Zdroj: | Journal of Cardiology. 65(1):57-62 |
| ISSN: | 0914-5087 |
| DOI: | 10.1016/j.jjcc.2014.03.013 |
| Popis: | Background The aim of this study is to evaluate the accuracy of a newly developed quantitative method using 64-multislice computed tomography angiography (CTA) to detect coronary in-stent restenosis (ISR). Methods and results CTA was performed in 45 patients who underwent stent implantation (79 lesions) and the accuracy to diagnose ISR was evaluated by comparing with invasive coronary angiography (ICA). CTA was evaluated both visually and quantitatively using a new stent restenosis index (SRI) utilizing CT densities at proximal and distal artery lumen from the stented region and the correction value depending on the stent diameter. ICA showed 11 ISR (14%). The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for visual evaluation were 78%, 75%, 35%, 95%, and 76%, respectively. On the other hand, the quantitative evaluation using SRI represents 82%, 93%, 64%, 97%, and 91%, respectively. Conclusions Evaluation of ISR using SRI is superior to the visual estimation of CTA. |
| Databáze: | OpenAIRE |
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