Diffusion weighted imaging in the liver
| Autor: | Petra G. Kele, Eric J. van der Jagt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Adult
Male Cirrhotic liver medicine.medical_specialty Carcinoma Hepatocellular LESION DETECTION COEFFICIENT MEASUREMENTS Models Biological Diffusion CONTRAST-ENHANCED MRI Necrosis Magnetic resonance imaging Benign neoplasms HEPATOCELLULAR-CARCINOMA medicine Recurrent disease Effective diffusion coefficient QUALITY Humans cardiovascular diseases Topic Highlight Neoplasm Metastasis RECURRENCE CHEMOEMBOLIZATION Neuroradiology Aged PITFALLS medicine.diagnostic_test business.industry Liver Neoplasms Gastroenterology Diffusion weighted imaging General Medicine medicine.disease COLORECTAL HEPATIC METASTASES ONCOLOGY Fibrosis Diffusion-Weighted Magnetic Resonance Imaging Diffusion Magnetic Resonance Imaging Liver Hepatocellular carcinoma Female Radiology business Diffusion MRI |
| Zdroj: | World Journal of Gastroenterology, 16(13), 1567-1576. Baishideng Publishing Group Inc. |
| ISSN: | 1007-9327 |
| Popis: | Diffusion weighted magnetic resonance imaging (DWI) is an imaging technique which provides tissue contrast by the measurement of diffusion properties of water molecules within tissues. Diffusion is expressed in an apparent diffusion coefficient (ADC), which reflects the diffusion properties unique to each type of tissue. DWI has been originally used in neuroradiology. More recently, DWI has increasingly been used in addition to conventional unenhanced and enhanced magnetic resonance imaging (MRI) in other parts of the body. The reason for this delay was a number of technical problems inherent to the technique, making DWI very sensitive to artifacts, which had to be overcome. With assessment of ADC values, DWI proved to be helpful in characterization of focal liver lesions. However, DWI should always be used in conjunction to conventional MRI since there is considerable overlap between ADC values of benign and malignant lesions. DWI is useful in the detection of hepatocellular carcinoma in the cirrhotic liver and detection of liver metastases in oncological patients. In addition, DWI is a promising tool in the prediction of tumor responsiveness to chemotherapy and the follow-up of oncological patients after treatment, as DWI may be capable of detecting recurrent disease earlier than conventional imaging. This review focuses on the most common applications of DWI in the liver. (C) 2010 Baishideng. All rights reserved. |
| Databáze: | OpenAIRE |
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