Abstract #4543
Differential Diagnosis of Chest Lesions: Values of Diffusion-Weighted MR Imaging
Nan-Han Lu 1,2 , Tai-Been Chen 2 , Yung-Hui Huang 2 , Hueisch-Jy Ding 2 , Lee-Ren Yeh 1 , and Jeon-Hor Chen 1,3
1
Department of Radiology, E-DA Hospital,
Kaohsiung, Kaohsiung, Taiwan,
2
Department
of Medical Imaging and Radiological Sciences, I-Shou
University, Kaohsiung, Kaohsiung, Taiwan,
3
Functional
Onco-Imaging, Department of Radiological Sciences,
University of California Irvine, Irvin, CA, United
States
Lung cancer is the leading cause of cancer death among
men and women worldwide. The precise pre-operation
diagnosis of chest neoplasms and inflammatory nodules
using CT, MRI and PET-CT is difficult. The most
sensitive diagnostic method is the surgical biopsy. The
differences in imaging findings may reflect differences
in histopathologic features of chest lesions. On
T2-weighted MR images could not be used to distinguish
malignant from benign pulmonary nodules. On
diffusion-weighted MR imaging (DWI), the apparent
diffusion coefficient (ADC) value refers to the specific
diffusion capacity of a biologic tissue. ADC value
depends largely on the presence of barriers to diffusion
within the water microenvironment.The goal of this study
is to present a novel method for differential diagnosis
among primary chest cancers, metastatic tumors and
benign tumors using ADC standard deviation value (SD) of
diffusion-weighted MR imaging.
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