A calcification subtraction method for postmortem coronary computed tomography angiography.
Coronary calcification
Coronary subtraction CT angiography
Ex situ coronary CT angiography
Postmortem angiography
Journal
International journal of legal medicine
ISSN: 1437-1596
Titre abrégé: Int J Legal Med
Pays: Germany
ID NLM: 9101456
Informations de publication
Date de publication:
12 Sep 2024
12 Sep 2024
Historique:
received:
07
06
2024
accepted:
29
08
2024
medline:
12
9
2024
pubmed:
12
9
2024
entrez:
11
9
2024
Statut:
aheadofprint
Résumé
Although coronary computed tomography (CT) angiography is a useful tool for evaluating coronary artery lesions both ante- and postmortem, accurate evaluation of the lumen is difficult when highly calcified lesions are present, owing to overestimation of stenosis caused by blooming and partial volume artifacts. In clinical practice, to overcome this diagnostic problem, a subtraction method has been devised to remove calcification by subtracting the precontrast image from the contrast image. In this report, we describe a calcification subtraction method using image analysis software for postmortem coronary CT angiography. This method was devised based on preliminary experimental results showing that the most accurate subtraction was achieved using images reconstructed with a narrower field of view and bone kernel, resulting in higher spatial resolution. This subtraction method allowed evaluation of lumen patency and the degree of stenosis on contrast-enhanced images in a verification using actual specimens where evaluation of the lumen had been difficult because of high calcification. The results were morphologically similar to the macroscopic findings. This method allows more rapid and reliable lesion retrieval and is expected to be useful for postmortem coronary angiography in forensic practice.
Identifiants
pubmed: 39261357
doi: 10.1007/s00414-024-03321-0
pii: 10.1007/s00414-024-03321-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Japan Society for the Promotion of Science
ID : 21K10516
Informations de copyright
© 2024. The Author(s).
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