Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography.

Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. Research Abstract Details 

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Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. Abstract Text:

Kazushi Numata,Manabu Morimoto,Takashi Ogura,Kazuya Sugimori,Shigeo Takebayashi,Masahiro Okada,Katsuaki Tanaka,

OBJECTIVE: We evaluated the usefulness of contrast-enhanced harmonic gray scale sonography with a newly developed sonographic contrast medium as a means of guidance for percutaneous ablation therapy of hepatocellular carcinoma lesions not detected by conventional sonography. METHODS: We examined 85 patients with 108 hepatocellular carcinoma lesions that were identified as hypervascular by multidetector-row computed tomography by using contrast-enhanced harmonic gray scale sonography after injection of Sonazoid (GE Healthcare, Oslo, Norway), a lipid-stabilized suspension of a perfluorobutane gas microbubble contrast agent. We scanned the whole liver by this modality at a low mechanical index in the late phase to detect lesions not detected by conventional sonography and then scanned the lesions again by this modality at a high mechanical index to visualize tumor vessels and enhancement. We also performed percutaneous ablation therapy guided by this modality to treat viable hepatocellular carcinoma lesions that could not be detected by conventional sonography. RESULTS: Conventional sonography identified 90 (83%) of 108 hepatocellular carcinoma lesions; 15 (14%) additional viable lesions not detected by conventional sonography were detected in the late phase of contrast-enhanced harmonic gray scale sonography at a low mechanical index, and tumor vessels and enhancement were observed in the late phase at a high mechanical index. Contrast-enhanced harmonic gray scale sonography diagnosed 105 (97%) of the 108 viable hepatocellular carcinoma lesions, and 14 (93%) of the 15 lesions not detected by conventional sonography were successfully treated by percutaneous ablation therapy guided by this modality. CONCLUSIONS: Contrast-enhanced harmonic gray scale sonography is useful for guidance of percutaneous ablation therapy of hepatocellular carcinoma lesions not detected by conventional sonography.

Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. Publishing Authors By Initials

K Numata,M Morimoto,T Ogura,K Sugimori,S Takebayashi,M Okada,K Tanaka,

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Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of ultrasound in medicine : official journ

VOLUME: 27

Page Numbers: 395-406

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ISSN: 0278-4297

DAY: 3

MONTH: Mar

YEAR: 2008

Ablation therapy guided by contrast-enhanced sonography with sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. Information

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LANGUAGE: eng

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AFFILIATION: Gastroenterological Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, Kanagawa 232-0024, Japan. kz-numa@zero.ad.jp.

Country: United States

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MEDLINETA: J Ultrasound Med

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