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Correlation of Coronary Calcium Measured on Conventional Computed Tomography with Coronary Angiography Findings in Lung Transplant Patients.

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Title: Correlation of Coronary Calcium Measured on Conventional Computed Tomography with Coronary Angiography Findings in Lung Transplant Patients.
Authors: Tapia Concha, Sergio, Fariñas-Álvarez, Concepción, Muñoz Cacho, Pedro, Cifrian Martínez, José Manuel, Zueco Gil, Javier, Parra Blanco, José Antonio
Source: Tomography: A Journal for Imaging Research; Feb2025, Vol. 11 Issue 2, p11, 15p
Subject Terms: CORONARY artery calcification, CORONARY angiography, CORONARY artery disease, COMPUTED tomography, LUNG transplantation, LUNGS
Abstract: Introduction and objective: The pre-transplant protocol for lung transplant candidates includes a chest CT scan to assess disease progression and often coronary angiography (CA) to rule out coronary artery disease (CAD). Coronary artery calcium is commonly observed in these pre-transplant CT scans. This study aims to evaluate the relationship between coronary calcium detected on CT and findings from CA to determine whether calcium presence could serve as an additional criterion for selecting patients for CA. Material and Methods: We included 252 consecutive lung transplant patients who had both a CT scan and CA within 365 days of each other. Coronary calcium quantification was performed using artery-based, segment artery-based, and visual assessment methods. CA findings were classified by stenosis severity: ≤20%, 21–70%, and >70%. Results: This study showed very high concordance (kappa = 0.896; 95% CI: 0.843–0.948) between the three methods, especially in distinguishing patients without and with coronary calcium (kappa = 1.000; 95% CI: 0.929–1.071). ROC analysis identified the absence of coronary calcium as the best cutoff to differentiate patients with ≤20% stenosis from those with >21%, with a sensitivity of 73.5%, specificity of 55.7%, PPV of 28.5%, and NPV of 90%. Only 11 patients (8.7%) without coronary calcium had stenosis of 21–70%, and only 2 (1.6%) had stenosis > 70%. Conclusions: The visual assessment method yielded results similar to the other two quantification methods. The absence of coronary calcium in pre-transplant CT may be a useful criterion for selecting patients for CA. [ABSTRACT FROM AUTHOR]
Copyright of Tomography: A Journal for Imaging Research is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Correlation of Coronary Calcium Measured on Conventional Computed Tomography with Coronary Angiography Findings in Lung Transplant Patients.
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  Data: <searchLink fieldCode="AR" term="%22Tapia+Concha%2C+Sergio%22">Tapia Concha, Sergio</searchLink><br /><searchLink fieldCode="AR" term="%22Fariñas-Álvarez%2C+Concepción%22">Fariñas-Álvarez, Concepción</searchLink><br /><searchLink fieldCode="AR" term="%22Muñoz+Cacho%2C+Pedro%22">Muñoz Cacho, Pedro</searchLink><br /><searchLink fieldCode="AR" term="%22Cifrian+Martínez%2C+José+Manuel%22">Cifrian Martínez, José Manuel</searchLink><br /><searchLink fieldCode="AR" term="%22Zueco+Gil%2C+Javier%22">Zueco Gil, Javier</searchLink><br /><searchLink fieldCode="AR" term="%22Parra+Blanco%2C+José+Antonio%22">Parra Blanco, José Antonio</searchLink>
– Name: TitleSource
  Label: Source
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  Data: Tomography: A Journal for Imaging Research; Feb2025, Vol. 11 Issue 2, p11, 15p
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22CORONARY+artery+calcification%22">CORONARY artery calcification</searchLink><br /><searchLink fieldCode="DE" term="%22CORONARY+angiography%22">CORONARY angiography</searchLink><br /><searchLink fieldCode="DE" term="%22CORONARY+artery+disease%22">CORONARY artery disease</searchLink><br /><searchLink fieldCode="DE" term="%22COMPUTED+tomography%22">COMPUTED tomography</searchLink><br /><searchLink fieldCode="DE" term="%22LUNG+transplantation%22">LUNG transplantation</searchLink><br /><searchLink fieldCode="DE" term="%22LUNGS%22">LUNGS</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Introduction and objective: The pre-transplant protocol for lung transplant candidates includes a chest CT scan to assess disease progression and often coronary angiography (CA) to rule out coronary artery disease (CAD). Coronary artery calcium is commonly observed in these pre-transplant CT scans. This study aims to evaluate the relationship between coronary calcium detected on CT and findings from CA to determine whether calcium presence could serve as an additional criterion for selecting patients for CA. Material and Methods: We included 252 consecutive lung transplant patients who had both a CT scan and CA within 365 days of each other. Coronary calcium quantification was performed using artery-based, segment artery-based, and visual assessment methods. CA findings were classified by stenosis severity: ≤20%, 21–70%, and >70%. Results: This study showed very high concordance (kappa = 0.896; 95% CI: 0.843–0.948) between the three methods, especially in distinguishing patients without and with coronary calcium (kappa = 1.000; 95% CI: 0.929–1.071). ROC analysis identified the absence of coronary calcium as the best cutoff to differentiate patients with ≤20% stenosis from those with >21%, with a sensitivity of 73.5%, specificity of 55.7%, PPV of 28.5%, and NPV of 90%. Only 11 patients (8.7%) without coronary calcium had stenosis of 21–70%, and only 2 (1.6%) had stenosis > 70%. Conclusions: The visual assessment method yielded results similar to the other two quantification methods. The absence of coronary calcium in pre-transplant CT may be a useful criterion for selecting patients for CA. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Tomography: A Journal for Imaging Research is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/tomography11020011
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 11
    Subjects:
      – SubjectFull: CORONARY artery calcification
        Type: general
      – SubjectFull: CORONARY angiography
        Type: general
      – SubjectFull: CORONARY artery disease
        Type: general
      – SubjectFull: COMPUTED tomography
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      – SubjectFull: LUNG transplantation
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      – SubjectFull: LUNGS
        Type: general
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      – TitleFull: Correlation of Coronary Calcium Measured on Conventional Computed Tomography with Coronary Angiography Findings in Lung Transplant Patients.
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            NameFull: Tapia Concha, Sergio
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            NameFull: Fariñas-Álvarez, Concepción
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            NameFull: Cifrian Martínez, José Manuel
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              M: 02
              Text: Feb2025
              Type: published
              Y: 2025
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