Small hepatocellular carcinoma: MR follow-up of treatment with percutaneous ethanol injection
| Autor: | Gianluca Taccagni, E. Colombo, Angelo Vanzulli, E. Angeli, A DelMaschio, Sandro Sironi, T Livraghi, Gaetano Villa |
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| Rok vydání: | 1993 |
| Předmět: |
Male
medicine.medical_specialty Carcinoma Hepatocellular medicine.medical_treatment Injections Intralesional Lesion Biopsy medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies Aged Chemotherapy Ethanol medicine.diagnostic_test business.industry Liver Neoplasms Magnetic resonance imaging Middle Aged medicine.disease Magnetic Resonance Imaging Mr imaging Hepatocellular carcinoma Female Radiology medicine.symptom Percutaneous ethanol injection business After treatment |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1527-1315 0033-8419 |
| Popis: | To assess the potential role of magnetic resonance (MR) imaging in the follow-up evaluation of small hepatocellular carcinoma (HCC) treated with percutaneous ethanol injection (PEI), 31 patients with a single HCC lesion less than 3.0 cm in diameter underwent MR imaging at 0.5 T before and after treatment. Posttreatment follow-up included contrast material-enhanced computed tomography (CT) and fine-needle biopsy in all cases. The most important characteristic of the treated HCC lesions was hypointensity on T2-weighted MR images in cases (27 of 31) in which complete tumor necrosis was achieved with PEI. This feature corresponded to a nonenhanced, low-attenuation area on follow-up contrast-enhanced CT scans. Four HCCs were positive for malignant cells at 6-month fine-needle biopsy; in these lesions, residual tumor tissue was of high signal intensity on T2-weighted MR images and of high attenuation on contrast-enhanced CT scans. In each case, incomplete tumor necrosis was confirmed at pathologic examination of the surgical specimen. |
| Databáze: | OpenAIRE |
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