Systems, compositions and devices for in vivo magnetic resonance imaging of lungs using perfluorinated gas mixtures

A pressurized gas canister holding a medical grade gas mixture comprising:

• between 20-79% inert perfluorinated gas;
• and
• at least 20.5% oxygen gas, wherein the medical grade gas mixture is held at a pressure in the pressurized canister so that a dense gas component remains in a gaseous state under normal operating conditions of about 21 degrees C. and/or room temperature and pressure.

A pressurized gas supply for MRI images, comprising:

• a pressurized canister of a medical grade gas mixture comprising perfluorinated gas in a level that is between 20-79% and oxygen gas in a level that is at least 20.5%, wherein the pressurized canister is at a sufficiently low pressure to hold the gas mixture in a gaseous state at room temperature;
• and
• an enclosed gas flow path in fluid communication with the pressurized canister of the medical grade gas mixture comprising at least one conduit extending from the canister to a dispensing member adapted to reside over, on or in a respective patient while the patient resides inside a magnetic field of an MRI scanner to deliver the medical grade gas mixture.