Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease

<i>Background and Objectives</i>: This study aimed to evaluate the utility and accuracy of dual-energy automatic plaque removal (DE-APR) in patients with symptomatic peripheral arterial disease (PAD) using digital subtraction angiography (DSA) as the reference standard. <i>Material...

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Main Authors: Byeong-Ju Koo, Jung-Ho Won, Ho-Cheol Choi, Jae-Boem Na, Ji-Eun Kim, Mi-Jung Park, Sa-Hong Jo, Hyun-Oh Park, Chung-Eun Lee, Mi-Ji Kim, Sung-Eun Park
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Medicina
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Online Access:https://www.mdpi.com/1648-9144/58/10/1435
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author Byeong-Ju Koo
Jung-Ho Won
Ho-Cheol Choi
Jae-Boem Na
Ji-Eun Kim
Mi-Jung Park
Sa-Hong Jo
Hyun-Oh Park
Chung-Eun Lee
Mi-Ji Kim
Sung-Eun Park
author_facet Byeong-Ju Koo
Jung-Ho Won
Ho-Cheol Choi
Jae-Boem Na
Ji-Eun Kim
Mi-Jung Park
Sa-Hong Jo
Hyun-Oh Park
Chung-Eun Lee
Mi-Ji Kim
Sung-Eun Park
author_sort Byeong-Ju Koo
collection DOAJ
description <i>Background and Objectives</i>: This study aimed to evaluate the utility and accuracy of dual-energy automatic plaque removal (DE-APR) in patients with symptomatic peripheral arterial disease (PAD) using digital subtraction angiography (DSA) as the reference standard. <i>Materials and Methods</i>: We retrospectively analyzed 100 patients with PAD who underwent DE computed tomography angiography (DE-CTA) and DSA of the lower extremities. DE-CTA was used to generate APR subtracted images. In the three main arterial segments (aorto-iliac segment, femoro-popliteal segment, and below-the-knee segment), the presence or absence of hemodynamically significant stenosis (>50%) and calcification was assessed using the images. CTA data were analyzed using different imaging approaches (DE-standard reconstruction image (DE-SR), DE-APR maximum intensity projection image (APR), and DE-SR with APR). <i>Results</i>: For all segments evaluated, the sensitivity, specificity, and accuracy for detecting significant stenosis were 98.16%, 81.01%, and 89.58%, respectively, with DE-SR; 97.79%, 83.33%, and 90.56%, respectively, with APR; and 98.16%, 92.25%, and 95.20%, respectively, with DE-SR with APR. DE-SR with APR had greater accuracy than DE-SR or APR alone (<i>p</i> < 0.001 and <i>p</i> < 0.001, respectively). When analyzed based on vascular wall calcification, the accuracy of DE-SR with APR remained greater than 90% regardless of calcification severity, whereas DE-SR showed a considerable reduction in accuracy in moderate to severe calcification. In the case of APR, the degree of vascular wall calcification did not significantly influence the accuracy in the aorto-iliac and femoro-popliteal segments. DE-SR with APR achieved significantly higher diagnostic accuracy for all lower extremity segments in evaluating hemodynamically significant stenosis in patients with symptomatic PAD and transcended the impact of vascular wall calcification compared with DE-SR. <i>Conclusions</i>: APR demonstrated favorable diagnostic performance in the aorto-iliac and femoro-popliteal segments, exhibiting good agreement with DSA even in cases of moderate to severe vascular wall calcification.
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spelling doaj.art-1ce14652fc3349efa1c88453dcf5c9f32023-11-24T01:11:05ZengMDPI AGMedicina1010-660X1648-91442022-10-015810143510.3390/medicina58101435Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery DiseaseByeong-Ju Koo0Jung-Ho Won1Ho-Cheol Choi2Jae-Boem Na3Ji-Eun Kim4Mi-Jung Park5Sa-Hong Jo6Hyun-Oh Park7Chung-Eun Lee8Mi-Ji Kim9Sung-Eun Park10Department of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Thoracic and Cardiovascular Surgery, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Thoracic and Cardiovascular Surgery, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju 52727, KoreaDepartment of Preventive Medicine, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 52727, KoreaDepartment of Radiology, Gyeongsang National University School of Medicine and Gyeonsang National University Changwon Hospital, Changwon 51472, Korea<i>Background and Objectives</i>: This study aimed to evaluate the utility and accuracy of dual-energy automatic plaque removal (DE-APR) in patients with symptomatic peripheral arterial disease (PAD) using digital subtraction angiography (DSA) as the reference standard. <i>Materials and Methods</i>: We retrospectively analyzed 100 patients with PAD who underwent DE computed tomography angiography (DE-CTA) and DSA of the lower extremities. DE-CTA was used to generate APR subtracted images. In the three main arterial segments (aorto-iliac segment, femoro-popliteal segment, and below-the-knee segment), the presence or absence of hemodynamically significant stenosis (>50%) and calcification was assessed using the images. CTA data were analyzed using different imaging approaches (DE-standard reconstruction image (DE-SR), DE-APR maximum intensity projection image (APR), and DE-SR with APR). <i>Results</i>: For all segments evaluated, the sensitivity, specificity, and accuracy for detecting significant stenosis were 98.16%, 81.01%, and 89.58%, respectively, with DE-SR; 97.79%, 83.33%, and 90.56%, respectively, with APR; and 98.16%, 92.25%, and 95.20%, respectively, with DE-SR with APR. DE-SR with APR had greater accuracy than DE-SR or APR alone (<i>p</i> < 0.001 and <i>p</i> < 0.001, respectively). When analyzed based on vascular wall calcification, the accuracy of DE-SR with APR remained greater than 90% regardless of calcification severity, whereas DE-SR showed a considerable reduction in accuracy in moderate to severe calcification. In the case of APR, the degree of vascular wall calcification did not significantly influence the accuracy in the aorto-iliac and femoro-popliteal segments. DE-SR with APR achieved significantly higher diagnostic accuracy for all lower extremity segments in evaluating hemodynamically significant stenosis in patients with symptomatic PAD and transcended the impact of vascular wall calcification compared with DE-SR. <i>Conclusions</i>: APR demonstrated favorable diagnostic performance in the aorto-iliac and femoro-popliteal segments, exhibiting good agreement with DSA even in cases of moderate to severe vascular wall calcification.https://www.mdpi.com/1648-9144/58/10/1435peripheral artery diseaseautomatic plaque removaldual-energy computed tomography angiographydigital subtraction angiography
spellingShingle Byeong-Ju Koo
Jung-Ho Won
Ho-Cheol Choi
Jae-Boem Na
Ji-Eun Kim
Mi-Jung Park
Sa-Hong Jo
Hyun-Oh Park
Chung-Eun Lee
Mi-Ji Kim
Sung-Eun Park
Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
Medicina
peripheral artery disease
automatic plaque removal
dual-energy computed tomography angiography
digital subtraction angiography
title Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
title_full Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
title_fullStr Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
title_full_unstemmed Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
title_short Automatic Plaque Removal Using Dual-Energy Computed Tomography Angiography: Diagnostic Accuracy and Utility in Patients with Peripheral Artery Disease
title_sort automatic plaque removal using dual energy computed tomography angiography diagnostic accuracy and utility in patients with peripheral artery disease
topic peripheral artery disease
automatic plaque removal
dual-energy computed tomography angiography
digital subtraction angiography
url https://www.mdpi.com/1648-9144/58/10/1435
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