Applications of retrospective electrocardiogram editing in dual-source computed tomography coronary angiography in patients with arrhythmia / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
;
(6): 671-676, 2010.
Article
Dans Chinois
| WPRIM
| ID: wpr-341477
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the clinical value of retrospective electrocardiogram (ECG) -editing technique in dual-source computed tomography (CT) coronary angiography in patients with arrhythmia.</p><p><b>METHODS</b>Totally 73 patients with arrhythmia during dual-source CT coronary angiography were included into this study. A retrospective gating technique and ECG-editing technique (Insert Sync; Disable Sync; Delete Sync; Shift R-peak) were used in patients who needed ECG-editing. Two experienced radiologists evaluated in consensus all pre-editing and post-editing reconstructed images and recorded scores according to the American Heart Association guidelines on coronary segmentation on a per segment basis. Image quality of all coronary segments was assessed using a four-point grading scale from excellent (4 scores) to non-assessable (1 score) .</p><p><b>RESULTS</b>The overall mean image quality of 34 patients who did not need ECG-editing was 3.42 ± 0.20. In 39 patients who needed ECG-editing, the overall mean image quality before and after ECG-editing was 2.39?0.37 and 3.22?0.24. The mean image quality in every segment between pre-editing and post-editing was also significantly different (P<0.01) .</p><p><b>CONCLUSION</b>ECG-editing technique can remarkably improve image quality of coronary artery segments by reducing or even eliminating the artifact produced by arrhythmia during dual-source CT coronary angiography.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Troubles du rythme cardiaque
/
Traitement d'image par ordinateur
/
Imagerie diagnostique
/
Tomodensitométrie
/
Coronarographie
/
Électrocardiographie
/
Méthodes
Type d'étude:
Etude diagnostique
/
Guide de pratique
Limites du sujet:
Adulte
/
Adulte très âgé
/
Aged80
/
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Acta Academiae Medicinae Sinicae
Année:
2010
Type:
Article
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