AJR. American journal of roentgenology
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AJR Am J Roentgenol · Nov 1999
CT fluoroscopy-assisted needle puncture and ethanol injection for hepatocellular carcinoma: a preliminary study.
We assessed the usefulness of real-time CT fluoroscopy for needle guidance and evaluated the clinical usefulness of a unified CT fluoroscopy and angiography system in the treatment of hepatocellular carcinoma. ⋯ Using CT fluoroscopy for guidance of the needle and for monitoring ethanol infusion in the target lesion, we have found single-session percutaneous ethanol injection to be possible for hepatocellular carcinomas smaller than 5 cm or not revealed by sonography. The puncture guidance equipment was helpful for accurate insertion of the needle into the lesion, allowing a minimum number of punctures and minimal radiation exposure.
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AJR Am J Roentgenol · Nov 1999
A specific sign of pneumoperitoneum on sonography: enhancement of the peritoneal stripe.
Failure to reveal pneumoperitoneum is a recognized weakness of abdominal sonography. Our objective is to describe a reliable and reproducible sign of pneumoperitoneum that was first identified in an animal model and then confirmed in patients who had undergone laparoscopy. ⋯ On sonography, enhancement of the peritoneal stripe alone or with reflection artifacts involving the peritoneal stripe is an accurate sign of pneumoperitoneum.