Hormone-mediated growth dynamics of the barley pericarp as revealed by magnetic resonance imaging and transcript profiling.

The shape of the maternal pericarp affects cereal grain mass and yield. Pericarp growth was analysed by magnetic resonance imaging (MRI), revealing topological maps of mobile water in developing pericarp of barley (Hordeum vulgare) and displaying tissue regions actively elongating in specific temporal-spatial patterns. Correlation analysis of MRI signals and growth rates reveals that growth in length is mediated by dorsal and also lateral rather than ventral regions.

Inspection of the human stomach using remote-controlled capsule endoscopy: a feasibility study in healthy volunteers (with videos).

Background: Remote control of capsule endoscopes might allow reliable inspection of the human stomach.

Objective: To assess the safety and efficacy of manipulation of a modified capsule endoscope with magnetic material (magnetic maneuverable capsule [MMC]) in the human stomach by using a handheld external magnet.

Design: Open clinical trial.

Remote magnetic control of a wireless capsule endoscope in the esophagus is safe and feasible: results of a randomized, clinical trial in healthy volunteers.

Background: Remote control of esophageal capsule endoscopes could enhance diagnostic accuracy.

Objective: To assess the safety and efficacy of remote magnetic manipulation of a modified capsule endoscope (magnetic maneuverable capsule [MMC]; Given Imaging Ltd, Yoqneam, Israel) in the esophagus of healthy humans.

Design: Randomized, controlled trial.

Online assessment of biofilm development, sloughing and forced detachment in tube reactor by means of magnetic resonance microscopy.

Magnetic resonance microscopy (MRM) was successfully applied for non-invasive online monitoring of biofilm development, sloughing, and forced detachment. Biofilm cultivation was performed in a tube reactor directly placed in the MRM scanner. Based on the differences in relaxation time of free and bound protons, the distributed water signal was allocated to the bulk and the biofilm phase.

Remote magnetic manipulation of a wireless capsule endoscope in the esophagus and stomach of humans (with videos).

Background: Remote manipulation of wireless capsule endoscopes might improve diagnostic accuracy and facilitate therapy.

Objective: To test a new capsule-manipulation system.

Setting: University hospital.