摘要:

AbstractIn order to calculate a magnification factor (MF), an intracardiac marker (pigtail catheter with markers) was evaluated using a new formula and correlated with the conventional grid method. By applying the Pythagorean theorem and trigonometry, a new formula was developed, which is\documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm MF = 2/}\sqrt {{\rm (L cos\theta)}{}^{\rm 2} + {\rm (L sin\theta)}{}^{\rm 2} + {\rm (L' sin\theta ')}{}^{\rm 2}} $$\end{document}In an experimental study, MF by the intracardiac markers was 0.71 ± 0.15 (M ± SD) and one by the grid method was 0.72 ± 0.15, with a correlation coefficient of 0.96. In patients study, MF by the intracardiac markers was 0.77 ± 0.06 and one by the grid method was 0.77 ± 0.05. We conclude that this new method is simple and the results were comparable to the conventional grid method at mid‐chest

ISSN:0098-6569    

DOI:10.1002/ccd.1810090112

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractA new “transductal” technique of aortic arch and left ventricular angiography in patients with patent ductus arteriosus (PDA) is described by introducing the catheter to the aortic arch from the pulmonary artery via the PDA. Over a 4‐year period, 44 infants and children with complicated PDA underwent cardiac catheterization with this technique at our institution. Twenty‐five of the 30 in the group with PDA alone and 12 of 14 in the group with associated cardiac defects had successful aortic arch catheterization and angiography, an 84% success rate. No complications were encountered during the procedure. The technique offers a safe alternative to retrograde arterial catheterization in patients with PDA who have other associated

ISSN:0098-6569    

DOI:10.1002/ccd.1810090113

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractWe report our experience in cardiac output measurements using a single catheter for left ventricular green dye injection with sampling from the side arm of a femoral artery introducer sheath. This technique is compared to thermal dilution (20 patients) and pulmonary artery green dye injection (20 patients). There were no significant differences between the single catheter left ventricular method and the other two accepted methods for measuring cardiac output.

ISSN:0098-6569    

DOI:10.1002/ccd.1810090114

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractWe have developed a new catheter for transvenous angiography in patent ductus arteriosus (PDA) that has given excellent results in 31 patients (age range seven months to 17 years). Optimal selective opacification of PDA is due to maintaining the catheter side holes in close proximity to the PDA and to rapid delivery of relatively large volumes of contrast medium into the ampulla of the PDA without the catheter recolling. The venous route of catheter insertion precludes possible arterial injury.

ISSN:0098-6569    

DOI:10.1002/ccd.1810090115

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

摘要:

AbstractIn this report the authors describe a new technique for nonsurgical retrieval of an embolized catheter fragment without free ends in the pulmonary artery using a “forceps with three grasping prongs.” This method is extremely promising for retrieval of catheter fragments in the pulmonary artery, especially when the free ends are not accessi

ISSN:0098-6569    

DOI:10.1002/ccd.1810090116

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810090117

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810090118

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810090101

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1983

数据来源: WILEY