TY - JOUR
T1 - An assessment of the quality of optical coherence tomography image acquisition
AU - Iarossi Zago, Elder
AU - Samdani, Abdul Jawwad
AU - Pereira, Gabriel Tensol Rodrigues
AU - Vergara-Martel, Armando
AU - Alaiti, Mohamad Amer
AU - Dallan, Luis Augusto
AU - Ely Pizzato, Patricia
AU - Zimin, Vladislav
AU - Fares, Anas
AU - Bezerra, Hiram G.
N1 - Publisher Copyright:
© 2020, Springer Nature B.V.
PY - 2020/6/1
Y1 - 2020/6/1
N2 - 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.
AB - 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.
KW - Image acquisition
KW - Intravascular imaging
KW - Optical coherence tomography
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U2 - 10.1007/s10554-020-01795-8
DO - 10.1007/s10554-020-01795-8
M3 - Article
C2 - 32072443
AN - SCOPUS:85079657167
SN - 1569-5794
VL - 36
SP - 1013
EP - 1020
JO - International Journal of Cardiovascular Imaging
JF - International Journal of Cardiovascular Imaging
IS - 6
ER -