Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1573-0743
    Keywords: coronary disease ; digital angiography ; myocardial perfusion ; 3D imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In patients with coronary artery disease coronary angiography plays an important role in the clinical decision-making process. However, it has been recognized that no simple relation exists between the visually or quantitatively evaluated severity of coronary artery stenoses and its effects on regional myocardial perfusion. This paper describes for the first time the development and application of a 3D technique that visualizes and quantifies regional myocardial perfusion parameters from biplane coronary angiograms by using the impulse response analysis technique. The 3D reconstructed coronary tree is automatically superimposed on the 3D perfusion image to generate and visualize an ‘integrated’ 3D image. The preliminary results in patients with critical coronary artery stenoses indicate that our combined 3D fusion image provides flow information from the major coronary arteries. This 3D fusion image may provide useful information in the management of patients with coronary artery disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1435-1285
    Keywords: Key words Angiography – coronary disease – scintigraphy – 3D fusion imaging ; Schlüsselwörter Angiographie – Koronare Herzkrankheit – Szintigraphie – 3D Fusionsbild
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Interpretation dreidimensionaler (3D) Strukturen des Koronarbaumes und des Myokards durch den Kliniker erfordert eine subjektive, visuelle Integration zweidimensionaler (2D) Bilder von kardialen diagnostischen Verfahren wie der Koronarangiographie und der Myokardszintigraphie. Obwohl bei einer gewöhnlichen 2D Betrachtung der Myokardszintigraphie die myokardialen Perfusionssegmenten grob den drei Hauptgebieten des koronar-arteriellen Systems zugeordnet werden, findet sich jedoch eine Übereinstimmung der myokardialen Standardverteilungsgebiete mit dem individuellen pathologisch-anatomischen Koronarbaum bei nur 50–60% der Patienten. Die mentale Integration von 2D Bildern der Koronarangiographie und der myokardialen Szintigraphie erlaubt daher nicht unbedingt eine genaue Zuordnung von bestimmten myokardialen Perfusionsgebieten zu den korrespondierenden Gefäßsegmenten. Für eine objektivere Zuordnung der ienzelnen Gefäßsegmente des Koronarbaumes zu den korrespondierenden myokardialen Regionen haben wir daher eine “3D Fusionstechnik” entwickelt und diese bei Patienten mit koronarer Herzkrankheit angewendet. Ursache- und Wirkungsbeziehung können durch eine 3D Datenfusion offensichtlicher werden und den Vergleich zwischen Anatomie und Physiologie erleichtern. Erste Ergebnisse zeigen, daß unser neuentwickeltes 3D Fusionsbild nützlich ist für eine genaue Zuordnung der koronaren Gefäßsegmente zu den korrespondierenden myokardialen Perfusionsgebieten, und deuten darauf hin, daß es dem Kliniker eine umfassende und genaue Beurteilung des Zustandes des Herzens ermöglicht.
    Notes: Summary The interpretation of three-dimensional (3D) structures of the coronary tree and the myocardium by a clinician demands a subjective visual integration of two-dimensional (2D) images of cardiac diagnostic procedures like coronary angiography and myocardial scintigraphy. Although in the conventional analysis of 2D display scintigraphic myocardial perfusion segments are arbitrarily assigned to three major coronary artery systems, the standard myocardial perfusion distribution territories correspond with the individual pathologic-anatomic coronary tree in only 50–60% of the patients. Hence, the mental integration ob both 2D images of coronary angiography and myocardial scintigraphy does not necessarily allow an accurate assignment of particular myocardial perfusion regions to the corresponding vessels. For an objective assignment of each vessel segment of the coronary tree to the corresponding myocardial regions, we have developed a 3D “fusion image” technique and applied it to patients with coronary artery disease. Cause-and-effect relationships may be more obvious with 3D data fusion and may enable an easier comparison of anatomy and physiology. Preliminary results demonstrate that our newly developed 3D fusion image is useful for accurate assignment of coronary vessel segments to the corresponding myocardial perfusion regions and suggest that it may allow the clinician a comprehensive and accurate assessment of the patient's myocardial status.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...