Open AccessCan diffusion weighted MRI differentiate between benign and malignant hepatic focal lesions?
Author(s) -
Manal Ezzat Badawy,
Manal Fathy Hamesa,
Ashraf Elaggan,
Abd Elmonem Nooman,
Mamdouh Gabr
Publication year - 2013
Publication title -
the egyptian journal of radiology and nuclear medicine /the egyptian journal of radiology and nuclear medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.19
H-Index - 13
eISSN - 2090-4762
pISSN - 0378-603X
DOI - 10.1016/j.ejrnm.2013.06.003
Subject(s) - medicine , effective diffusion coefficient , diffusion mri , magnetic resonance imaging , radiology , hepatocellular carcinoma , nuclear medicine , pathology
The aim of this study is to evaluate the role of diffusion-weighted magnetic resonance imaging in differentiation between benign and malignant hepatic focal lesions.Patients and methodsFifty-five hepatic focal lesions in 40 patients. All those patients were subjected to full clinical evaluation and radiological assessment using conventional MRI study of the liver and diffusion-weighted MRI (Different b values: 100, 500 and 750s/mm2). All lesions were evaluated regarding size, signal intensity, enhancement pattern, qualitative assessments by the different b values and quantitative assessment by measurement of the ADC values.ResultsADCs of focal hepatic lesions were significantly different between benign (2.869×10−3mm2/s±0.652) and malignant (0.995×10−3mm2/s±0. 274) hepatic focal lesions. The mean ADCs were 0.76×10−3mm2/s±0.53 for metastases, 1.3×10−3mm2/s±0.55 for HCCs, 1.95×10−3mm2/s±0.24 for benign hepatocellular lesions, 2.92×10−3mm2/s±0.102 for hemangiomas, and 3.64×10−3mm2/s±0.14 for cysts.ConclusionDiffusion-weighted imaging (DWI) offers the possibility to obtain criteria for characterization of focal liver lesions with subsequent differentiation between benign and malignant hepatic focal lesions without the need for contrast agent administration-by quantifying diffusion effects via apparent diffusion coefficient (ADC) measurements