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Updated: Mar 19, 2026

Ultrasonographic Assessment During Cardiopulmonary Resuscitation
Published on: October 24, 2020
Contrast-enhanced ultrasonography revealed active thoracic bleeding
Takaaki Sugihara1, Masahiko Koda2, Shiho Tokunaga1
1Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Tottori University School of Medicine, 36-1 Nishimachi, Yonago, Tottori, 683-8504, Japan.
Abstract:
A 61-year-old woman with a hepatocellular carcinoma located in the subphrenic region was treated by radiofrequency ablation (RFA) under artificial pleural effusion. During RFA, B-mode ultrasonography showed a swirling high echoic lesion in the artificial pleural effusion. A real-time scan performed using contrast-enhanced ultrasonography (CEUS) revealed a jet-like extravasation of contrast medium and pooling of microbubbles in the pleural cavity, which were confirmed by angiography. CEUS successfully identified the site of bleeding and can be regarded an effective tool for detecting active bleeding in an emergency.
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