The clinical value of MRI whole body diffusion weighted imaging in the diagnosis and follow-up of metastatic tumor
SUN Su
ZHENG Wenlong
WU Aiqin
Abstract：Objective To investigate the clinical value of MRI whole body diffusion weighted imaging ( WBDWI) in the diag-nosis and follow-up of metastatic tumor. Methods 42 patients with metastatic tumor underwent WBDWI. The positive results were diagnosed and analyzed by double-blind method, and the apparent diffusion coefficient ( ADC) values of the lesions were measured on the ADC imagings. Results The WBDWI imaging of metastatic tumors showed multiple abnormal signal lesions in the whole body, including multiple lymph nodes enlargement in the body, multiple metastasis in the liver, spleen, adrenal glands and lungs, and the diffuse infiltration of bone marrow of skeletal system. The lesions showed mottled and patchy hyperintensity on MIP imaging, hypointensity on flipped imaging and ADC imaging. Of 7 cases with follow-up examination after treatment, 5 showed that the number of lesions reduced and the signal intensity decreased on MIP imaging, and the ADC values increased, one showed that the number of lesions increased and the signal intensity had any significant changes, and one had any changes in the number and signal intensity. Conclusion As a new functional MR-imaging technology, WBDWI has some application value in diagnosis and follow-up of metastatic tumors.
Keywords：Magnetic resonance imagingWhole body diffusion weighted imagingMalignant tumormetastases
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1654-1656,1675 )