Esophageal Phased-Array Sector Echocardiography: An Anatomic Study
Esophageal echocardiography has received limited attention over the past few years. M-mode esophageal echocardiography, although promising as a means of monitoring myocardial function, has been limited in its usefulness for assessment of cardiac anatomy.1-6 More recently, mechanical sector scanners have been developed which permit two-dimensional esophageal imaging.7-9 These instruments are characteristically encumbered by a mechanical linkage to a rotating crystal. Other potential endoscopic functions, such as fiberoptics, suction, and universal control of crystal angulation, are made difficult and require an inordinate increase in the size of the endoscope.
KeywordsEpoxy Cardiol Pentobarbital Active Element
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