High-resolution MR imaging appearance of colonic tissue in rabbits using an endoluminal coil.

Purpose: This study assessed the value of high-resolution magnetic resonance imaging (MRI) of the distal colon by means of a dedicated endoluminal magnetic resonance receiver coil on a 1.5-T clinical scanner.

Materials And Methods: To this end, single-loop, receive-only radio-frequency coils, housed in 18 F sheaths, were built.

RF-induced temperature elevation along metallic wires in clinical magnetic resonance imaging: influence of diameter and length.

With the development of interventional MRI, heating of biological tissues along the metallic wires in the MRI scanner has become an important issue. To assess thermal response to RF exposure during MRI, we studied the temperature elevation near nonmagnetic metallic wires. All tests were performed on a 1.