摘要:

AbstractA major complication of left heart catheterization via the brachial artery is occlusion at the cutdown site. This is particularly a problem when patients with severe atherosclerosis are catheterized in laboratories where the brachial approach is not routinely used. A method of brachial artery catheterization is described which employs a continuously flushed side arm sheath in order to minimize local trauma to the artery from catheter exchange and manipulation. In 15 consecutive atherosclerotic patients catheterized by this method there were no complications, and all arteriotomies were closed easily with immediate restoration of a good radial pulse. This contrasts with the preceding 33 consecutive brachial catherizations employing standard technique in similar patients in whom four patients required surgical repair, and an additional six patients required more than one closure attempt and/or catheter thrombectomy to restore a good pulse. In our laboratory the brachial sheath technique has facilitated arterial repair and reduced local complications.

ISSN:0098-6569    

DOI:10.1002/ccd.1810100112

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

年代:1984

数据来源: WILEY

摘要:

AbstractThis study evaluated a new high line rate (1,023‐line) high band‐width (10 MHz) system, compared it to our high‐definition, 525‐line video system, and compared both video systems to 35‐mm cine angiography in 117 patients undergoing clinically indicated coronary angiography. The subjective image quality of the 1,023‐line video system was not significantly better than that of the 525‐line system. High line rate, high band‐width systems may have theoretical advantages, but the increased noise level under clinical angiographic conditions reduces their diagnostic quality. Comparison between video (all modes) and cine images resulted in cine being rated as the best modality, but the differences were slight. Radiation levels required for video imaging, however, were significantly less than those required for cine recording. Current clinical and computer interactive uses of video systems in the cardiac laboratory are described. The eventual role and potential replacement of cine recording by video tape systems will depend on continued developments in video recor

ISSN:0098-6569    

DOI:10.1002/ccd.1810100113

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

年代:1984

数据来源: WILEY

摘要:

AbstractWith the expanding use of video systems in diagnostic imaging a significant benefit could be obtained by applying this technology in the cardiac catheterization laboratory. Reduced radiation exposure to the patient and staff, reduced examination cost by the elimination of cine film and equipment (cameras, processors, etc), and instant replay of each injection would result in improved patient care. We discuss the technical parameters of a video system which we have found suitable for diagnostic purposes and describe how this system is used on a day‐to‐day basis. In addition, the technical aspects of higher bandwidth, higher line rate systems is presented, and we show that these more sophisticated systems provide no advantage over conventional high‐definition television and, in fact, degrade the diagnostic quality of the

ISSN:0098-6569    

DOI:10.1002/ccd.1810100114

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100115

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100116

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100117

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100118

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100119

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

年代:1984

数据来源: WILEY

ISSN:0098-6569    

DOI:10.1002/ccd.1810100101

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

年代:1984

数据来源: WILEY