منابع مشابه
How to misuse echo contrast
BACKGROUND Primary intracardiac tumours are rare, there are however several entities that can mimic tumours. Contrast echocardiography has been suggested to aid the differentiation of various suspected masses. We present a case where transthoracic echocardiography completely misdiagnosed a left atrial mass, partly due to use of echo contrast. CASE PRESENTATION An 80 year-old woman was referre...
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Data on the ultrasonic properties of commercially available contrast agents are limited by being instrument-dependent, especially with regard to their backscattering properties. The present work describes methods of measurements that provide instrument-independent estimations of a contrast agent's attenuation coefficient and integrated backscatter index and provide them as functions of its conc...
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ژورنال
عنوان ژورنال: Neurosonology
سال: 1998
ISSN: 0917-074X,1884-3336
DOI: 10.2301/neurosonology.11.86