An assessment of the quality of optical coherence tomography image acquisition.
An assessment of the quality of optical coherence tomography image acquisition.
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光学相干断层扫描图像采集质量的评估。
DOI：
10.1007/s10554-020-01795-8
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Bezerra,HiramG
中科院分区：
文献类型：
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作者：
IarossiZago,Elder;Samdani,AbdulJawwad;Pereira,GabrielTensolRodrigues;Vergara-Martel,Armando;Alaiti,MohamadAmer;Dallan,LuisAugusto;ElyPizzato,Patricia;Zimin,Vladislav;Fares,Anas;Bezerra,HiramG
光学相干断层扫描（OCT）提供了出色的图像分辨率，然而OCT的最佳采集是必不可少的，但由于几个因素可能具有挑战性。我们试图评估OCT回拉的质量，并确定图像采集不理想的原因。我们评估了784例（404例术前pci， 380例术后pci）冠脉回拉，这些数据来自我们心血管成像核心实验室的匿名OCT数据库。在16.1%的回拉中，感兴趣区域（roi病变或支架段加参考物）的成像不完整，原因是回拉太近（63.7%），回拉长度不合适（17.1%）和回拉太远（11.4%）。36.3%的回调图像采集质量优良；而4%的回调是无法分析的。影响回拉质量的最常见因素是造影剂容量不足（27.4%）或流量不足（25.6%）导致的血液置换不良，其次是假影（24.1%）。采集模式为“高分辨率”（54毫米），占74.4%，“调查”（75毫米）占25.6%。54 mm模式与ROI成像不完整（p = 0.020）和对比度不足（p = 0.035）相关。我们观察到大量图像采集不理想的频率，并确定了其原因，其中大多数可以在手术过程中进行轻微修改，最终改善患者的预后。
Optical coherence tomography (OCT) provides excellent image resolution, however OCT optimal acquisition is essential but could be challenging owing to several factors. We sought to assess the quality of OCT pullbacks and identify the causes of suboptimal image acquisition. We evaluated 784 (404 pre-PCI; 380 post-PCI) coronary pullbacks from an anonymized OCT database from our Cardiovascular Imaging Core Laboratory. Imaging of the region-of-interest (ROI—lesion or stented segment plus references) was incomplete in 16.1% pullbacks, caused by pullback starting too proximal (63.7%), inappropriate pullback length (17.1%) and pullback starting too distal (11.4%). The quality of image acquisition was excellent in 36.3% pullbacks; whereas 4% pullbacks were unanalyzable. Pullback quality was most commonly affected by poor blood displacement from inadequate contrast volume (27.4%) or flow (25.6%), followed by artifacts (24.1%). Acquisition mode was ‘High-Resolution’ (54 mm) in 74.4% and ‘Survey’ (75 mm) in 25.6% of cases. The 54 mm mode was associated with incomplete ROI imaging (p = 0.020) and inadequate contrast volume (p = 0.035). We observed a substantial frequency of suboptimal image acquisition and identified its causes, most of which can be addressed with minor modifications during the procedure, ultimately improving patient outcomes.