In the early days of MRI using conventional spin echo, proton density-weighted images were acquired automatically with a T2-weighted image. These were known as the “long TR, double echo” sequence.

More information: Quantification of Hepatic Steatosis by Ultrasound: Prospective Comparison to MRI Proton-Density Fat Fraction as Reference Standard, American Journal of Roentgenology (2022). DOI ...

"The MRI device, which can rotate around the patient, enables us to use innovative types of patient positioning for proton therapy in both lying or in upright positions." The prototype will be used in ...

MRI examinations included three PDFF acquisitions with calculation of an overall median PDFF. Ultimately, UDFF was positively associated with MRI PDFF (rho=0.82 [95% 0.71-0.89]; p<.001), with mean ...

Researchers at the Helmholtz-Zentrum Dresden-Rossendorf want to build the world's first prototype that tracks moving tumors with magnetic resonance imaging (MRI) in real time during proton therapy.

Methods: Thirty three consecutive patients were preoperatively staged using DW-MRI to undergo exenterative surgery for locally advanced primary (n=12) and recurrent (n=21) colorectal pelvic cancer.