A phased-array rat-heart coil with four internal preamplifiers was used as receiver, coupled with a 72 mm linear-volume coil as transmitter.
The apparatus in his chest, which consists of the artificial heart, energy coil, battery and controller, weighs more than four pounds, far heavier and bulkier than a normal heart.
Forty days after DM induction, all the animals underwent MRI examination using a 7.0-T small-animal scanner (Bruker Biospec 70/30, Ettlingen, Germany) and a rat heart array coil (Bruker Z114784).
At another time, it hides itself in the inmost recess of the heart, or coils around it like a serpent; now it fixes upon the lungs; now upon the kidneys, upon the liver, the bladder, the pancreas, the intestines of the skin.
A hydrogen bonding network between highly-conserved glutamine residues Q157B/D and Q158B/D interrupts the continuity of the hydrophobic interactions at the heart of the coiled-coil, which features most prominently the aromatic stacking of phenylalanine residue F154A/C with F154B/D.
The chest must be large enough to hold a grapefruit-size artificial heart, an energy coil, battery and controller, totaling a little more than four pounds.
Watch a strip of plastic laminated with heart-muscle tissue coil up as the tissue contracts.
Treatment of embryos from early cleavage through mid-blastula (4-cell to stage 9) or from early blastula through neurulation (stage 6 20) resulted in absence of Pitx2c expression from the left LPM (Fig. 1A D) and in heterotaxia, as assessed by heart looping, gut coiling and the positioning of the gall bladder (Fig. 1E G).
MRI was performed on a 1.5-T scanner (Philips) using a five-element cardiac coil, and heart rate was registered.
They not only had to place the artificial heart but also an internal coil that receives energy from across the skin to power the device.
The analysis method used to derive the [C]bicarbonate/[1-C]pyruvate ratio, as detailed in 'Data analysis', was insensitive to these spatial variations because the mean signal over a large region of the heart was used, and the coil positioning relative to the heart was similar across the different animals and examination points.
