Related Experiment Videos
Contrast-enhanced magnetisation transfer MRI in metastatic lesions of the brain
P Peretti-Viton1, D Taieb, J M Viton
1Department of Neuroradiology, Hôpital de la Timone, Marseille, France.
Abstract:
Our purpose was to compare prospectively the sensitivity of contrast-enhanced magnetisation transfer (MT) MRI and gradient-echo (GE) T1-weighted images in metastatic disease of the brain. We studied 52 patients with brain metastases, using conventional T1-weighted GE and MT spin-echo (SE) images after the same standard dose of gadolinium. Axial 5-mm reconstructions of GE data were compared with 5-mm MT images in the same plane. Metastases were counted independently by two neuroradiologists. In 12 patients (23%) MT imaging showed more metastases than GE images (P = 0.03). We detected 68 more metastases with the former technique.