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Gas‐Containing Gallstones: Their influence on ultrasound images
Author(s) -
Rizzatto Giorgio,
Rubaltelli Leopoldo,
Talenti Enrico,
Bulzacchi Andrea,
Angelini Federico,
Zacchi Claudio
Publication year - 1984
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.1870120509
Subject(s) - gallstones , ultrasound , medicine , gallbladder , imaging phantom , gas bubble , radiology , in vivo , nuclear medicine , bubble , surgery , mechanics , microbiology and biotechnology , physics , biology
The ultrasound image of gas‐containing gallstones was evaluated in three cases. In two, the stones were studied in vitro in a phantom gallbladder by ultrasound, and then by microradiographic techniques. The third case was investigated in vivo by ultrasound and computerized tomography (CT). The presence of gas‐containing fissures, which are not detectable on ultrasound, was demonstrated. In contrast, wider fissures, or a true gas bubble, produce reverberation echoes which depend upon the quantity of gas present within the gallstone.