why is MRI off limits to making a diagnosis of asthma & other lung problems? What is in the lungs?

Question

so what do they use? if not a MRI scan?

Answer 1

mri requires you to not even blink! (ok, not blink but you cant even move). when you have asthma (NOT ALL LUNG PROBLEMZZ!!), since you can't breath that easily, you can't get an mri since you'd move (lungs moving fast, mouth and nostrils breathing quickly). that's of course for severe asthma. if your's is mild, you can get a mri scan.

if you can't, i think it's the CAT scan. ask ur doc

Answer 2

Aside from cardiovascular applications, MRI of the thorax is used primarily as a problem-solving modality in the workup of patients with lung, mediastinal, or pleural lesions. MRI is a useful alternative to CT pulmonary angiography in evaluating possible pulmonary embolic disease in patients in whom iodinated contrast agent cannot be administered and when the avoidance of ionizing radiation is preferred. In bronchial asthma, the most promising work appears to involve the use of special paramagnetic gases, which amplify the low signal-to-noise ratio of conventional spin-echo and gradient-echo techniques by several thousand times. The use of such gases offsets the disadvantages of the large magnetic susceptibility states with consequent shortened T2* signals induced by the air-alveolar interfaces.