Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients
PURPOSEWe aimed to evaluate the visibility of coronary arteries and bypass-grafts in patients who underwent dual source computed tomography (DSCT) angiography without heart rate (HR) control and to determine optimal intervals for image reconstruction.MATERIALS AND METHODSA total of 285 consecutive c...
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| Format: | Article |
| Language: | English |
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Galenos Publishing House
2014-09-01
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| Series: | Diagnostic and Interventional Radiology |
| Online Access: |
http://www.dirjournal.org/archives/archive-detail/article-preview/optimal-reconstruction-interval-in-dual-source-ct-/56065
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| _version_ | 1797691429209767936 |
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| author | Ayça Akgöz Deniz Akata Tuncay Hazırolan Muşturay Karçaaltıncaba |
| author_facet | Ayça Akgöz Deniz Akata Tuncay Hazırolan Muşturay Karçaaltıncaba |
| author_sort | Ayça Akgöz |
| collection | DOAJ |
| description | PURPOSEWe aimed to evaluate the visibility of coronary arteries and bypass-grafts in patients who underwent dual source computed tomography (DSCT) angiography without heart rate (HR) control and to determine optimal intervals for image reconstruction.MATERIALS AND METHODSA total of 285 consecutive cases who underwent coronary (n=255) and bypass-graft (n=30) DSCT angiography at our institution were identified retrospectively. Patients with atrial fibrillation were excluded. Ten datasets in 10% increments were reconstructed in all patients. On each dataset, the visibility of coronary arteries was evaluated using the 15-segment American Heart Association classification by two radiologists in consensus.RESULTSMean HR was 76±16.3 bpm, (range, 46–127 bpm). All coronary segments could be visualized in 277 patients (97.19%). On a segment-basis, 4265 of 4275 (99.77%) coronary artery segments were visible. All segments of 56 bypass-grafts in 30 patients were visible (100%). Total mean segment visibility scores of all coronary arteries were highest at 70%, 40%, and 30% intervals for all HRs. The optimal reconstruction intervals to visualize the segments of all three coronary arteries in descending order were 70%, 60%, 80%, and 30% intervals in patients with a mean HR <70 bpm; 40%, 70%, and 30% intervals in patients with a mean HR 70–100 bpm; and 40%, 50%, and 30% in patients with a mean HR >100 bpm.CONCLUSIONWithout beta-blocker administration, DSCT coronary angiography offers excellent visibility of vascular segments using both end-systolic and mid-late diastolic reconstructions at HRs up to 100 bpm, and only end-systolic reconstructions at HRs over 100 bpm. |
| first_indexed | 2024-03-12T02:13:11Z |
| format | Article |
| id | doaj.art-7144a7fc15174a739d2e79af72463883 |
| institution | Directory Open Access Journal |
| issn | 1305-3825 1305-3612 |
| language | English |
| last_indexed | 2024-03-12T02:13:11Z |
| publishDate | 2014-09-01 |
| publisher | Galenos Publishing House |
| record_format | Article |
| series | Diagnostic and Interventional Radiology |
| spelling | doaj.art-7144a7fc15174a739d2e79af724638832023-09-06T11:25:54ZengGalenos Publishing HouseDiagnostic and Interventional Radiology1305-38251305-36122014-09-0120539940610.5152/dir.2014.1345113049054Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patientsAyça Akgöz0Deniz Akata1Tuncay Hazırolan2Muşturay Karçaaltıncaba3 Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey PURPOSEWe aimed to evaluate the visibility of coronary arteries and bypass-grafts in patients who underwent dual source computed tomography (DSCT) angiography without heart rate (HR) control and to determine optimal intervals for image reconstruction.MATERIALS AND METHODSA total of 285 consecutive cases who underwent coronary (n=255) and bypass-graft (n=30) DSCT angiography at our institution were identified retrospectively. Patients with atrial fibrillation were excluded. Ten datasets in 10% increments were reconstructed in all patients. On each dataset, the visibility of coronary arteries was evaluated using the 15-segment American Heart Association classification by two radiologists in consensus.RESULTSMean HR was 76±16.3 bpm, (range, 46–127 bpm). All coronary segments could be visualized in 277 patients (97.19%). On a segment-basis, 4265 of 4275 (99.77%) coronary artery segments were visible. All segments of 56 bypass-grafts in 30 patients were visible (100%). Total mean segment visibility scores of all coronary arteries were highest at 70%, 40%, and 30% intervals for all HRs. The optimal reconstruction intervals to visualize the segments of all three coronary arteries in descending order were 70%, 60%, 80%, and 30% intervals in patients with a mean HR <70 bpm; 40%, 70%, and 30% intervals in patients with a mean HR 70–100 bpm; and 40%, 50%, and 30% in patients with a mean HR >100 bpm.CONCLUSIONWithout beta-blocker administration, DSCT coronary angiography offers excellent visibility of vascular segments using both end-systolic and mid-late diastolic reconstructions at HRs up to 100 bpm, and only end-systolic reconstructions at HRs over 100 bpm. http://www.dirjournal.org/archives/archive-detail/article-preview/optimal-reconstruction-interval-in-dual-source-ct-/56065 |
| spellingShingle | Ayça Akgöz Deniz Akata Tuncay Hazırolan Muşturay Karçaaltıncaba Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients Diagnostic and Interventional Radiology |
| title | Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients |
| title_full | Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients |
| title_fullStr | Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients |
| title_full_unstemmed | Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients |
| title_short | Optimal reconstruction interval in dual source CT coronary angiography: a single-center experience in 285 patients |
| title_sort | optimal reconstruction interval in dual source ct coronary angiography a single center experience in 285 patients |
| url |
http://www.dirjournal.org/archives/archive-detail/article-preview/optimal-reconstruction-interval-in-dual-source-ct-/56065
|
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