A comparative assessment of the performance of a state-of-the art small footprint dedicated cardiovascular CT scanner
| Autor: | Jonathon Leipsic, Jordan Boroditsky, Evan Ariel, Richard A Brown, Jonah Ezekiel, Malcolm Anastasius, Paul L Maggiore, Philipp Blanke, Jacob Merkur, Alex L. Huang |
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| Rok vydání: | 2021 |
| Předmět: |
Male
Scanner Tomography Scanners X-Ray Computed Image quality Coronary Artery Disease Fractional flow reserve 030204 cardiovascular system & hematology Coronary Angiography Radiation Dosage Chest pain 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests Multidetector Computed Tomography Image noise Humans Medicine Radiology Nuclear Medicine and imaging Aged Retrospective Studies Artifact (error) business.industry Small footprint Reproducibility of Results Equipment Design Middle Aged Coronary Vessels Fractional Flow Reserve Myocardial General purpose Female medicine.symptom Tomography X-Ray Computed Cardiology and Cardiovascular Medicine Nuclear medicine business |
| Zdroj: | Journal of Cardiovascular Computed Tomography. 15:85-87 |
| ISSN: | 1934-5925 |
| DOI: | 10.1016/j.jcct.2020.04.002 |
| Popis: | With increasing adoption of CT coronary angiography (CTA) there is increasing demand for cost-effective, small footprint, dedicated cardiac scanners. We compared a state-of-the-art, small footprint dedicated cardiac scanner (DCCT) to a standard multidetector scanner (MDCT).The study was a retrospective unblinded single centre study. A total of 800 patients were included, with 400 undergoing a DCCT and MDCT coronary CTA scanning, respectively. Image quality was assessed using a 4-point grading score. Image noise and artifact, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), and acceptance rate for CT-derived fractional flow reserve (FFRct) were recorded.Overall image quality was higher in the DCCT group (3.8 ± 0.55 vs 3.6 ± 0.69; p = 0.042). There was no difference in overall image noise (p = 0.131) or artifact (p = 0.295). SNR was superior in the DCCT group (14.2 ± 6.85 vs 11.4 ± 3.32; p 0.005) as was CNR (12.7 ± 6.77 vs 11.9 ± 3.29; p 0.005). The heart rate was lower in the DCCT group (56 ± 9.1 vs 59 ± 8.1; p 0.005). No difference in the dose length product (DLP median 244.53 (IQR 105.6) vs 237.63 (IQR 160.1); p = 0.313) or FFRA DCCT scanner is capable of image quality similar to modern current generation general purpose CT technology. Such technology appears to be a viable option to serve the increasing demand for CTCA imaging. |
| Databáze: | OpenAIRE |
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