Study Of Magnetic Resonance Venography In Diagnosing Vascular Malformation With Klippel-Trenaunay Syndrome

Object To evaluate the clinical value of Magnetic Resonance Venography in diagnosing venous malformation with Klippel-Trenaunay Syndrome. Method Thirty patients suffering from Klippel-Trenaunay Syndrome were examined with MRI and MRV by 1.5T MR system. TSE with fat saturation technique was used in MRI, and 2D TOP in MRV. MIP was used to reconstruct the raw data. Contrast enhancement MRV was performed in 2 cases, repeated studies in 2 cases before and after physical activity, and 2 cases before and after binding bandage. XRA was performed in 18 patients, ultrasonography in 5 patients and DSA in 1 patient. Result KT veins was found in 14 cases and deep vein stenosis was found in 5 cases. The deep vein system was unshown on MRV in 11 cases. With the XRA as a standard of reference, the sensitivity, the specificity and the veracity of MRV in the detection of the deep vein system abnormity were 100%, 66.67% and 94.44% respectively. There was no statistically significant difference between MRV and XRA. Conclusion MRV combining with MRI can display the venous malformation with KTS rather perfectly as well as the extent of naevus and hypertrophy of bone and soft tissue. As a new repeatable potential noninvasive imaging examination, it has a great role in diagnosing vascular malformation effectively, safely and quickly.