Abstract #4766

Detection of early phase of deep vein thrombosis with diffusion-weighted magnetic resonance imaging.

Yasuyoshi Kuroiwa^1,2, Atsushi Yamashita², Toshihiro Gi², Yuko Mizutani³, Taketoshi Asanuma³, Tosiaki Miyati⁴, Takuroh Imamura⁵, and Yujiro Asada²

¹Department of Radiological Technology, Koga general hospital, Miyazaki, Japan, ²Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan, ³Department of Radiology, Faculty of Veterinary Medicine, University of Miyazaki, Miyazaki, Japan, ⁴Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan, ⁵Department of Internal Medicine, Koga General Hospital, Miyazaki, Japan

To detect and characterize deep vein thrombus (DVT), we performed diffusion weighted magnetic resonance imaging (MRI) in 8 patients and a rabbit model of DVT. All patients were detected DVT as high or mixed high and iso signal intensity on diffusion weighted MRI. The rabbit venous thrombi showed high signal intensity on diffusion weighted MRI at 4 hours, or mixed iso to high and low signal intensity at 1, 2, 3 weeks. The signal intensity was positively correlated with erythrocyte contents. Diffusion weighted MRI can detect DVT and high signal intensity on the sequence may reflect early phase of DVT.

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