Diagnostic performance of cardiac fusion images from myocardial perfusion imaging and multislice computed tomography coronary angiography for assessment of hemodynamically significant coronary artery lesions: an observational study.
Nucl Med Commun
; 33(1): 60-8, 2012 Jan.
Article
de En
| MEDLINE
| ID: mdl-22008633
ABSTRACT
BACKGROUND:
In detecting coronary artery disease (CAD), fusion images obtained by combining myocardial perfusion imaging (MPI) and computed tomography coronary angiography (CTCA) have shown a higher accuracy and clinical usefulness than these modalities used separately or a simple comparison of individual images. However, the clinical use of fusion images has been restricted by the necessity of obtaining images with an integral type device or with devices made by the same manufacturer. Thus, we evaluated the detection of hemodynamically significant CAD by fusion images created with a newly developed general-purpose application that can be used with any type of device. METHODS ANDRESULTS:
In 49 patients, MPI during exercise and at rest and CTCA were obtained separately and combined into fusion images using the new application. As the reference standard, a comparative interpretation of MPI and the conventional coronary arteriography (CAG) was adopted. Hemodynamically significant CAD were diagnosed when MPI showed a reversible perfusion defect in a region with greater than 50% luminal stenosis on CAG. The capability of fusion images to detect CAD was compared with that of CTCA images alone. Fusion images showed a higher ability to detect CAD (sensitivity 80%, specificity 94%, positive predictive value 77%, and negative predictive value 95%) than CTCA alone (77, 77, 46, and 93%, respectively; fusion vs. CTCA specificity P=0.0002, positive predictive value P=0.0001).CONCLUSION:
Fusion images obtained with a general-purpose application were superior to CTCA images alone for detecting hemodynamically significant CAD.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Maladie des artères coronaires
/
Logiciel
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Interprétation d'images assistée par ordinateur
Type d'étude:
Diagnostic_studies
/
Evaluation_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limites:
Aged
/
Aged80
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Female
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Humans
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Male
/
Middle aged
Langue:
En
Journal:
Nucl Med Commun
Année:
2012
Type de document:
Article
Pays d'affiliation:
Japon