ULTRASONICALLY GUIDED PERCUTANEOUS FINE NEEDLE ASPIRATION BIOPSY OF THE PANCREAS:III. A new ultrasonic aspiration biopsy transducer with electronic linear scan ultrasonotomograph

概要

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Ultrasonically guided percutaneous fine needle aspiration biopsy for cytological diagnosis by a new ultrasonic transducer with electrolinear scanning ultrasonic diagnostic equipment was performed on patients with pancreatic cancer.This new ultrasonic aspiration biopsy transducer has made this procedure more simple and safe. This is because the image of the new ultrasonic real time transducer is dynamic and persistent, permitting actual time observation of physiological movements i.e., respiratory displacement and needle movement.On the other hand, an ultrasonic aspiration biopsy transducer with contact compound scan ultrasonotomograph was useful for a small target because of its clear image resolution, but it is not suitable for mobile targets.In regard to usefulness on the percutaneous aspiration biopsy of the pancreas, at present, there is no absolute superiority between the two kinds of ultrasonic aspiration biopsy transducer. It is rational that these two ultrasonic aspiration biopsy transducers should be used properly, according to the status and to the extent of mass lesion of each patient.
財団法人日本消化器病学会の論文