Background

In Institut for diagnostic and Interventionelle radiology of the Johann Wolfgang Goethe University clinic Frankfurt (you: Professor Dr. T. Vogl) are accomplished since end of 1999 not invasive investigations of the heart wreath/ring containers by means of multi-layer spiral CT. Until end of 2003 about 2100 patients became examined, approx. 500 investigations/year correspond. The photographs take place with the help of 16 lines a spiral CT's, which makes a simultaneous acquisition of 16 x for 0,75 mm possible of layers per 180° tube circulation. This corresponds to at present highest possible local dissolution and permits the evaluation of structures large up to 0,8 mm. The investigation is also accomplished lying on the back on the chest cork glued on electrodes. An electrocardiogram signal noted digitally during the admission makes following the investigation a reconstruction of transversals for sectional views possible by hearts in quasi the “frozen condition”. Thus artifacts will know the Koronararterien by the heart movement reduced and better to be defined. The duration of the investigation amounts to about 10 minutes, depending upon question varied thereby the number of CT-photographs. Thus for instance with the Kalkscoring in the context of a preventive medical examination a native CT-investigation is only needed, made during to the coronary angiography, bypass representation as well as with functional and pathomorphological questions additionally a contrast-centralstrengthened admission. For this during the second CT-investigation over a venous Verweilkanüle approx. 90 ml iodhaltiges contrast means is appliziert. Contraindications are a well-known heavy contrast central allergy - with lighter forms such as skin itching or - turning red can by simple medicamentous preparation possible symptoms in the apron be already avoided - as well as the income certain oral Antidiabetika (Metformin) in connection with a kidney insufficiency. Contrast means may not be given likewise with thyroid malfunctions, tumors of the thyroid as well as a planned radio iodine therapy. During each admission the patient must stop approx. 20 s air. Altogether different questions can be answered with the heart CT, which are in the following in detail represented.

 

Document Date: 2005/09/07   Author: Ahmed Koujan

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